Updated on 2025/12/26

写真a

 
NANBA Tokuro
 
Organization
Faculty of Environmental, Life, Natural Science and Technology Professor
Position
Professor
Contact information
メールアドレス
External link

Degree

  • Doctor of Engineering ( The University of Tokyo )

Research Interests

  • Inorganic Industrial Chemistry

  • 無機材料設計

  • 無機工業化学

  • Material Design of Inorganic Materials

Research Areas

  • Environmental Science/Agriculture Science / Environmental load reduction and remediation

  • Nanotechnology/Materials / Inorganic/coordination chemistry

  • Nanotechnology/Materials / Inorganic materials and properties

  • Environmental Science/Agriculture Science / Environmental materials and recycle technology

  • Nanotechnology/Materials / Functional solid state chemistry

Research History

  • Graduate School of Environmental, Life, Natural Science and Technology   Professor

    2023.4

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  • Faculty of Environmental, Life, Natural Science and Technology   Professor

    2021.4

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Professional Memberships

 

Papers

  • Effect of bond valence sum on the structural modeling of lead borate glass Reviewed

    Masaaki Nagao, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba, Atsushi Mukunoki, Tamotsu Chiba, Takahiro Kikuchi, Tomofumi Sakuragi, Hitoshi Owada

    JOURNAL OF NON-CRYSTALLINE SOLIDS   592   2022.9

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    DOI: 10.1016/j.jnoncrysol.2022.121751

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  • Environmental activities on glass in Japan Invited Reviewed

    Tokuro Nanba, Yasuhiko Benino, Tomoko Akai

    Journal of the Ceramic Society of Japan   130 ( 8 )   605 - 610   2022.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Ceramic Society of Japan  

    DOI: 10.2109/jcersj2.22052

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  • Eco-Benign Orange-Hued Pigment Derived from Aluminum-Enriched Biogenous Iron Oxide Sheaths. Reviewed International journal

    Katsunori Tamura, Yuri Oshima, Yuta Fuse, Noriyuki Nagaoka, Tatsuki Kunoh, Makoto Nakanishi, Tatsuo Fujii, Tokuro Nanba, Jun Takada

    ACS omega   7 ( 15 )   12795 - 12802   2022.4

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    Inorganic pigments have been widely used due to their low cost of production, strong hiding power, and chemical resistance; nevertheless, they have limited hue width and chromaticity. To eliminate these disadvantages, we herein propose the use of an ingenious biotemplate technique to produce Al-enriched biogenic iron oxide (BIOX) materials. Spectrophotometric color analysis showed that high levels of Al inclusion on heat-treated BIOX samples produced heightened yellowish hues and lightness. The Al-enriched BIOX sheaths exhibited a stable tubular structure and excellent thermal stability of color tones after heating at high temperatures and repetitive heat treatments. Ultrastructural analysis and mechanical destruction experiments revealed that the highly chromatic orange-hue of these pigments are ascribed probably to an ingenious cylindrical nanocomposite architecture composed of putative Fe-included low crystalline Al oxide regions and hematite particles embedded therein. The present work therefore demonstrates that the bioengineered material can serve as an epochal orange-hued inorganic pigment with low toxicity and marked thermostability that should meet large industrial demand.

    DOI: 10.1021/acsomega.1c07390

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  • Structural analyses and reverse Monte Carlo modeling of niobium oxide amorphous film prepared by sputtering method Reviewed

    Go Sajiki, Yasuhiko Benino, Chinatsu Oki, Koji Ohara, Hiroshi Okano, Tokuro Nanba

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   125 ( 10 )   760 - 765   2017.10

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    DOI: 10.2109/jcersj2.17053

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  • Investigation of electronic structure of amorphous niobium oxide based on the density functional theory calculation of crystalline niobium pentoxide polymorphs Reviewed

    Chinatsu Oki, Go Sajiki, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   124 ( 12 )   1221 - 1225   2016.12

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    DOI: 10.2109/jcersj2.16180

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  • Electrochemical and Photoelectrochemical Properties of Nano-Islands of Zinc and Niobium Oxides Deposited on Aluminum Thin Film by RF Magnetron Reactive Sputtering Reviewed

    Tokuro NANBA

    Materials Sciences and Applications   6   292 - 309   2015

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    DOI: 10.4236/msa.2015.64035

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  • Nano-micrometer-architectural acidic silica prepared from iron oxide of leptothrix ochracea origin Reviewed

    Hideki Hashimoto, Atsushi Itadani, Takayuki Kudoh, Satoshi Fukui, Yasushige Kuroda, Masaharu Seno, Yoshihiro Kusano, Yasunori Ikeda, Yasuhiko Benino, Tokuro Nanba, Makoto Nakanishi, Tatsuo Fujii, Jun Takada

    ACS Applied Materials and Interfaces   5 ( 11 )   5194 - 5200   2013.6

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    DOI: 10.1021/am401029r

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  • Distribution behavior of inorganic constituents in chemical recycling processes of a municipal waste slag Reviewed

    Kohei Omura, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba

    Journal of Asian Ceramic Societies   1 ( 1 )   108 - 113   2013

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier B.V.  

    DOI: 10.1016/j.jascer.2013.03.003

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  • Preparation, microstructure, and color tone of microtubule material composed of hematite/amorphous-silicate nanocomposite from iron oxide of bacterial origin Reviewed

    Hideki Hashimoto, Hiroshi Asaoka, Takuya Nakano, Yoshihiro Kusano, Hiromichi Ishihara, Yasunori Ikeda, Makoto Nakanishi, Tatsuo Fujii, Tadanori Yokoyama, Nanao Horiishi, Tokuro Nanba, Jun Takada

    DYES AND PIGMENTS   95 ( 3 )   639 - 643   2012.12

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    DOI: 10.1016/j.dyepig.2012.06.024

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  • Amorphous structure of iron oxide of bacterial origin Reviewed

    Hideki Hashimoto, Tatsuo Fujii, Shinji Kohara, Hiroshi Asaoka, Yoshihiro Kusano, Yasunori Ikeda, Makoto Nakanishi, Yasuhiko Benino, Tokuro Nanba, Jun Takada

    MATERIALS CHEMISTRY AND PHYSICS   137 ( 2 )   571 - 575   2012.12

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    DOI: 10.1016/j.matchemphys.2012.10.002

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  • Effect of additives on the distribution of phosphorus associated with phase separation of borosilicate glasses Reviewed

    Yasuhiko Benino, Yuki Ohtsuki, Shinichi Sakida, Tokuro Nanba

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   120 ( 1407 )   490 - 493   2012.11

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    DOI: 10.2109/jcersj2.120.490

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  • Surface crystallization of stoichiometric glass with Bi2ZnB2O7 crystal using ultrasonic surface treatment followed by heat treatment Reviewed

    Keita Kanenishi, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   120 ( 1407 )   509 - 512   2012.11

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    DOI: 10.2109/jcersj2.120.509

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  • Effect of Nb2O5 addition to SnO-P2O5 glass Reviewed

    Satoshi Fukui, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   120 ( 1407 )   530 - 533   2012.11

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    DOI: 10.2109/jcersj2.120.530

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  • Prediction of glass structure by using multiple regression analysis Reviewed

    Kumiko Ishii, Toru Tsuneoka, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   120 ( 1399 )   98 - 103   2012.3

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    DOI: 10.2109/jcersj2.120.98

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  • Fabrication and characterization of Er3+-doped tellurite glass Waveguides By Ag+-Na+ Ion-exchange Method Using a Dry Electromigration Process Reviewed

    S. Sakida, K. Kimura, Y. Benino, T. Nanba

    Processing, Properties, and Applications of Glass and Optical Materials: Ceramic Transactions   231   201 - 207   2012

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  • Functional and Structural Characterizations of Fresnoite Glass-Ceramics Oriented with UST Technique Reviewed

    Y. Benino, A. Endo, S. Sakida, T. Nanba

    Processing, Properties, and Applications of Glass and Optical Materials: Ceramic Transactions   231   161 - 165   2012

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  • Effect of TiO2 Addition on the Distribution of Phosphorus Associated with Phase Separation of Borosilicate Glasses Reviewed

    Y. Ohtsuki, S. Sakida, Y. Benino, T. Nanba

    Processing, Properties, and Applications of Glass and Optical Materials: Ceramic Transactions   231   145 - 149   2012

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  • Functional and structural characterizations of fresnoite glass-ceramics oriented with usttechnique

    Y. Benino, A. Endo, S. Sakida, T. Nanba

    Ceramic Transactions   231   161 - 165   2012

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:American Ceramic Society  

    DOI: 10.1002/9781118472590.ch18

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  • Characterization of glasses based on basicity Invited Reviewed

    Tokuro Nanba

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   119 ( 1394 )   720 - 725   2011.10

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    DOI: 10.2109/jcersj2.119.720

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  • Effect of ZrO_2 Addition on the Slag Corrosion Resistance of MgO-Al_2O_3 Spinel Reviewed

    FUJITA Motonari, KITA Hajime, IGABO Koichi, SAKIDA Shinichi, BENINO Yasuhiko, NANBA Tokuro, MIURA Yoshinari, YAMAGUCHI Akira

    耐火物   63 ( 6 )   279 - 286   2011.6

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  • Effect of Addition of Non-oxides on the Slag Corrosion Resistance of MgO-Al2O3 Refractories Reviewed

    Keisuke Morita, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba

    3RD INTERNATIONAL CONGRESS ON CERAMICS (ICC3): INNOVATION IN REFRACTORIES AND TRADITIONAL CERAMICS   18   222015   2011

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1088/1757-899X/18/22/222015

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  • Fabrication and characterization of Er3+-doped tellurite glass waveguide by Ag+-Na+ ion-exchange method Reviewed

    K. Kimura, S. Sakida, Y. Benino, T. Nanba

    IOP Conference Series: Materials Science and Engineering   18 ( 8 )   112018   2011

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    DOI: 10.1088/1757-899X/18/11/112018

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  • Phase separation of borosilicate glass containing phosphorus Reviewed

    Y. Ohtsuki, S. Sakida, Y. Benino, T. Nanba

    IOP Conference Series: Materials Science and Engineering   18 ( 8 )   112022   2011

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    DOI: 10.1088/1757-899X/18/11/112022

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  • Coloration and Depth Distribution of Cations Electrochemically-inserted into Electrochromic WO3 Thin Films Reviewed

    Miho Kawai, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba

    3RD INTERNATIONAL CONGRESS ON CERAMICS (ICC3): ADVANCES IN ELECTRO CERAMICS   18   092039   2011

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    DOI: 10.1088/1757-899X/18/9/092039

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  • Effect of ultrasonic surface treatment on the transparency and orientation of fresnoite surface crystallization Reviewed

    A. Endo, S. Sakida, Y. Benino, T. Nanba

    IOP Conference Series: Materials Science and Engineering   18 ( 8 )   112015   2011

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    DOI: 10.1088/1757-899X/18/11/112015

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  • Molecular dynamics simulation of lead borate and related glasses in multicomponent systems for low melting vitrification of nuclear wastes Reviewed

    S. Kato, S. Sakida, Y. Benino, T. Nanba

    IOP Conference Series: Materials Science and Engineering   18 ( 1 )   022014   2011

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    DOI: 10.1088/1757-899X/18/2/022014

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  • Phase separation of borosilicate glass containing sulfur Reviewed

    Keiji Saiki, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   118 ( 1379 )   603 - 607   2010.7

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    DOI: 10.2109/jcersj2.118.603

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  • FURTHER DEVELOPMENT OF IODINE IMMOBILIZATION TECHNIQUE BY LOW TEMPERATURE VITRIFICATION WITH BiPbO2I Reviewed

    Atsushi Mukunoki, Tamotsu Chiba, Yasuhiro Suzuki, Kenji Yamaguchi, Tomofumi Sakuragi, Tokuro Nanba

    PROCEEDINGS OF THE 12TH INTERNATIONAL CONFERENCE ON ENVIRONMENTAL REMEDIATION AND RADIOACTIVE WASTE MANAGEMENT 2009, VOL 1   329 - 334   2010

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  • Chemical recycling of municipal waste slag by using phase separation Reviewed

    Tokuro Nanba, Yutaro Kuroda, Shinichi Sakida, Yasuhiko Benino

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   117 ( 1371 )   1195 - 1198   2009.11

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    DOI: 10.2109/jcersj2.117.1195

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  • Molecular orbital calculation of the Si-29 NMR chemical shift in borosilicates: the effect of boron coordination to SiO4 units Reviewed

    T. Nanba, Y. Asano, Y. Benino, S. Sakida, Y. Miura

    PHYSICS AND CHEMISTRY OF GLASSES-EUROPEAN JOURNAL OF GLASS SCIENCE AND TECHNOLOGY PART B   50 ( 5 )   301 - 304   2009.10

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  • Correlation between basicity and coordination structure in borosilicate glasses Reviewed

    Y. Tanaka, Y. Benino, T. Nanba, S. Sakida, Y. Miura

    PHYSICS AND CHEMISTRY OF GLASSES-EUROPEAN JOURNAL OF GLASS SCIENCE AND TECHNOLOGY PART B   50 ( 5 )   289 - 293   2009.10

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  • Molecular orbital calculation of the Si NMR chemical shift in borosilicates: The effect of boron coordination to SiO4 units

    T. Nanba, Y. Asano, Y. Benino, S. Sakida, Y. Mima

    Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B   50 ( 5 )   301 - 304   2009.10

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  • Studies on the characterization of sulfur and coloration in borosilicate glasses Reviewed

    Taro Asahi, Susumu Nakayama, Tokuro Nanba, Hajime Kiyono, Hiroshi Yamashita, Takashi Mackawa

    JOURNAL OF CERAMIC PROCESSING RESEARCH   9 ( 4 )   401 - 406   2008.8

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  • Chemical recycling of inorganic wastes by using phase separation of glass Reviewed

    Tokuro Nanba, Shuhei Mikami, Takuya Imaoka, Shinichi Sakida, Yoshinari Miura

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   116 ( 1350 )   220 - 223   2008.2

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2109/jcersj2.116.220

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  • Optical properties of Er3+-doped tungsten tellurite glass waveguides by Ag+-Na+ ion-exchange Reviewed

    Shinichi Sakida, Tokuro Nanba, Yoshinari Miura

    OPTICAL MATERIALS   30 ( 4 )   586 - 593   2007.12

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    DOI: 10.1016/j.optmat.2007.01.010

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  • Sintering of Al2O3-Cr2O3 powder prepared by sol-gel process Reviewed

    Motonari Fujita, Keisuke Inukai, Shinichi Sakida, Tokuro Nanba, Junji Ommyoji, Akira Yamaguchi, Yoshinari Miura

    Zairyo/Journal of the Society of Materials Science, Japan   56 ( 6 )   526 - 530   2007.6

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    DOI: 10.2472/jsms.56.526

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  • Refractive-index profiles and propagation losses of Er3+-doped tungsten tellurite glass waveguide by Ag+-Na+ ion-exchange Reviewed

    S. Sakida, T. Nanba, Y. Miura

    MATERIALS LETTERS   60 ( 28 )   3413 - 3415   2006.12

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    DOI: 10.1016/j.matlet.2006.03.024

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  • Structural change around Si atoms in P2O5-SiO2 binary glasses before and after annealing by Si-29 MAS NMR spectroscopy Reviewed

    Shinichi Sakida, Tokuro Nanba, Yoshinari Miura

    CHEMISTRY LETTERS   35 ( 11 )   1268 - 1269   2006.11

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    DOI: 10.1246/cl.2006.1268

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  • Preparation of Na2S-B2O3-SiO2 Glass Systems and Local Structure Analysis Reviewed

    Taro ASAHI, Susumu NAKAYAMA, Yoshinari MIURA, Tokuro NANBA, Hiroshi YAMASHITA, Takashi MAEKAWA

    Journal of the Ceramic Society of Japan   114 ( 1332 )   697 - 704   2006.8

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2109/jcersj.114.697

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  • Hardening mechanism of refractory patching materials with phosphate binder Reviewed

    Shinichi Sakida, Yuichi Yamamoto, Tokuro Nanba, Yoshinari Miura, Tetsuhiro Hayashi, Akira Yamaguchi

    Zairyo/Journal of the Society of Materials Science, Japan   55 ( 7 )   670 - 674   2006.7

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    DOI: 10.2472/jsms.55.670

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  • A theoretical interpretation of 17O NMR spectra in borosilicate glasses

    M. Urushihara, T. Nanba, Y. Miura, S. Sakida

    Ceramic Transactions   197   189 - 196   2006

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  • Consideration on the correlation between basicity of oxide glasses and O1s chemical shift in XPS Invited Reviewed

    T Nanba, Y Miura, S Sakida

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   113 ( 1313 )   44 - 50   2005.1

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    DOI: 10.2109/jcersj.113.44

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  • Compositional Dependence of Refractive Index of Tellurite Glasses

    Akamine Shuko, Sakida Shinichi, Nanba Tokuro, Miura Yoshinari

    Preprints of Annual Meeting of The Ceramic Society of Japan<br> Preprints of Fall Meeting of The Ceramic Society of Japan   2005S   468 - 468   2005

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    Publisher:The Ceramic Society of Japan  

    DOI: 10.14853/pcersj.2005s.0.468.0

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  • Molecular dynamic simulation on the structure of sodium germanate melts Reviewed

    T. Nanba, M. Nakamura, Y. Miura

    J. Ceram. Soc. Japan, Suppl.   112 ( 5 )   S1250 - S1253   2004

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    DOI: 10.14852/jcersjsuppl.112.0.S1250.0

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  • A theoretical interpretation of the chemical shift of Si-29 NMR peaks in alkali borosilicate glasses Reviewed

    T Nanba, M Nishimura, Y Miura

    GEOCHIMICA ET COSMOCHIMICA ACTA   68 ( 24 )   5103 - 5111   2004

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    DOI: 10.1016/j.gca.2004.05.042

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  • Changes in atomic and electronic structures of amorphous WO3 films due to electrochemical ion insertion Reviewed

    T Nanba, M Ishikawa, Y Sakai, Y Miura

    THIN SOLID FILMS   445 ( 2 )   175 - 181   2003.12

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    DOI: 10.1016/S0040-6090(03)01188-X

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  • Alkali distribution in borosilicate glasses Reviewed

    T Nanba, Y Miura

    PHYSICS AND CHEMISTRY OF GLASSES   44 ( 3 )   244 - 248   2003.6

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  • Chemical bonding state of sodium silicates Reviewed

    T Nanba, T Hagiwara, Y Miura

    ADVANCES IN QUANTUM CHEMISTRY, VOL 42   42   187 - 198   2003

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  • An interpretation of 11B and 29Si NMR spectra in alkali borosilicate glasses

    Tokuro NANBA

    GEOCHIMICA ET COSMOCHIMICA ACTA   67 ( 18 )   2003

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  • Performance of Pt catalysts supported on SiC-DPF

    Tokuro NANBA

    SCIENCE AND TECHNOLOGY IN CATALYSIS 2002   2003

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    DOI: 10.1016/S0167-2991(03)80262-8

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  • X-ray and neutron scattering study of the structure of lithium bismuth oxide glass Reviewed

    T Watanabe, T Nanba, Y Miura

    JOURNAL OF NON-CRYSTALLINE SOLIDS   297 ( 1 )   73 - 83   2002.1

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    DOI: 10.1016/S0022-3093(01)00921-8

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  • Changes in microstructure of a reduced cobalt catalyst during performing FT synthesis from syngas determined by in situ high-pressure syngas adsorption

    Tokuro NANBA

    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   2002

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    DOI: 10.1016/S1381-1169(01)00340-5

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  • Product analysis of selective catalytic reduction of NO2 with C2H4 over H-ferrierite

    Tokuro NANBA

    JOURNAL OF CATALYSIS   2002

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    DOI: 10.1006/JCAT.2002.3746

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  • An exploratory study of diesel soot oxidation with NO2 and O2 on supported metal oxide catalysts

    Tokuro NANBA

    APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY   2002

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/S0926-3373(02)00008-5

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  • X-ray photoelectron spectroscopy of sodium borosilicate glasses Reviewed

    Y Miura, H Kusano, T Nanba, S Matsumoto

    JOURNAL OF NON-CRYSTALLINE SOLIDS   290 ( 1 )   1 - 14   2001.9

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    DOI: 10.1016/S0022-3093(01)00720-7

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  • Electron paramagnetic resonance study of positive-hole pairs on oxide ions in lithium bismuthate glass Reviewed

    T Watanabe, T Nanba, Y Miura

    CHEMISTRY LETTERS   ( 2 )   156 - 157   2001.2

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    DOI: 10.1246/cl.2001.156

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  • Oxidation of carbon black over various Pt/MOx/SiC catalysts

    Tokuro NANBA

    APPLIED CATALYSIS B-ENVIRONMENTAL   2001

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    DOI: 10.1016/S0926-3373(01)00150-3

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  • Use of double wash-coatings of platinum and zeolite catalysts to improve selective reduction of NOx by hydrocarbons

    Tokuro NANBA

    TOPICS IN CATALYSIS   2001

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    DOI: 10.1023/A:1016624007495

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  • Synergistic catalysis of carbon black oxidation by Pt with MoO3 or V2O5

    Tokuro NANBA

    APPLIED CATALYSIS B-ENVIRONMENTAL   2001

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    DOI: 10.1016/S0926-3373(00)00238-1

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  • Molecular dynamic simulation on the structure of sodium germanate glasses Reviewed

    Tokuro Nanba, John Kieffer, Yoshinari Miura

    Journal of Non-Crystalline Solids   277 ( 2-3 )   188 - 206   2000.12

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  • X-ray photoelectron spectroscopy of sodium aluminosilicate glasses Reviewed

    Y Miura, S Matsumoto, T Nanba, T Akazawa

    PHYSICS AND CHEMISTRY OF GLASSES   41 ( 1 )   24 - 31   2000.2

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  • Catalytic performance of Pt supported on various metal oxides in the oxidation of carbon black

    Tokuro NANBA

    APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY   2000

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    DOI: 10.1016/S0926-3373(99)00142-3

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  • Photoluminescence increase of Er3+ in Na2O-Nb2O5-SiO2 glasses after crystallization Reviewed

    ZD Yao, Y Ding, T Nanba, Y Miura

    JOURNAL OF NON-CRYSTALLINE SOLIDS   259   45 - 50   1999.11

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  • Oriented surface crystallization of lithium niobate on glass and second harmonic generation Reviewed

    Y Ding, Y Miura, S Nakaoka, T Nanba

    JOURNAL OF NON-CRYSTALLINE SOLIDS   259   132 - 138   1999.11

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    DOI: 10.1016/S0022-3093(99)00502-5

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  • Compositional dependences of Judd-Ofelt parameters of Er3+ in borosilicate glasses Reviewed

    Z Yao, Y Ding, T Nanba, Y Miura

    PHYSICS AND CHEMISTRY OF GLASSES   40 ( 4 )   179 - 183   1999.8

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  • Chemical Bonding State of Sulfur in Oxysulfide Glasses Reviewed

    T. Asahi, Y. Miura, T. Nanba, H. Yamashita

    The Korean Journal of Ceramics   5 ( 2 )   178 - 182   1999.2

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  • Local structure of Eu3+ in borosilicate glasses by phonon sideband spectra Reviewed

    ZD Yao, Y Ding, T Nanba, Y Miura

    MATERIALS SCIENCE RESEARCH INTERNATIONAL   4 ( 4 )   239 - 243   1998.12

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  • Photoluminescence enhancement of Er3+ in phase separated borosilicate glasses Reviewed

    ZD Yao, Y Ding, T Nanba, Y Miura

    MATERIALS SCIENCE RESEARCH INTERNATIONAL   4 ( 4 )   244 - 248   1998.12

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  • Intensified photoluminescence of EU3+ in the phase-separated borosilicate glass Reviewed

    Z Yao, Y Ding, T Nanba, Y Miura

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   106 ( 11 )   1043 - 1047   1998.11

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  • Photoluminescence characteristics of Eu3+ doped in phase separated borosilicate glass Reviewed

    ZD Yao, Y Ding, T Nanba, Y Miura

    MATERIALS SCIENCE RESEARCH INTERNATIONAL   4 ( 3 )   141 - 147   1998.9

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  • X-ray photoelectron spectroscopy of alkali silicate glasses Reviewed

    S Matsumoto, T Nanba, Y Miura

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   106 ( 4 )   415 - 421   1998.4

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  • Chemical Bonding State of Sulfur in Na_2S-SiO_2 Glasses

    ASAHI Taro, INO Takayuki, MIURA Yoshinari, NANBA Tokuro, YAMASHITA Hiroshi

    Journal of the Ceramic Society of Japan   106 ( 1230 )   150 - 154   1998.2

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    The structure and electronic states of Na_2S-SiO_2 oxysulfide glasses were investigated and the role of sulfur in the glasses is discussed. Na_2S formed stable glass with SiO_2 at an alkali concentration range similar to that of Na_2O-SiO_2 systems by the conventional melt-quench method. The obtained glasses were reddish brown in color and a remaining of sulfur was confirmed. X-ray photoelectron spectroscopy(XPS)was used to study the chemical bonding state of bridging and nonbridging anionic species in Na_2S-SiO_2 glass. The S2p binding energy of the glass was observed to be approximately 161 eV. This value is lower than that of orthorhombic crystalline sulfur and almost the same as the value of Na_2S. From the results, the electron density around sulfur was near to that of S^<2->. Furthermore, by ^<29>Si magic angle spinning(MAS)and unclear magnetic resonance(NMR)measurement, three clear-cut peaks were detected between 0 and -120 ppm. It was assumed that a sulfur atom was joined to silicon via substitution for an oxygen atom, and was present as nonbridging sulfur in Na_2S-SiO_2 glass with low alkali ion concentration. On the other hand, it was revealed that a portion of the sulfur ions existed in an isolated state from the glass-network structure at high alkali content. The glass composition changed to a chemical composition that was more silica rich than predicted. The sulfur ions made sulfide clusters with the sodium ions isolated from the glass-network.

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  • Chemical bonding state of sulfur in Na2S-SiO2 glasses Reviewed

    T Asahi, T Ino, Y Miura, T Nanba, H Yamashita

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   106 ( 2 )   150 - 154   1998.2

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  • Wavelet analysis of x-ray diffraction pattern for glass structures Reviewed

    Yong Ding, Tokuro Nanba, Yoshinari Miura

    Physical Review B - Condensed Matter and Materials Physics   58 ( 21 )   14279 - 14287   1998

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    DOI: 10.1103/PhysRevB.58.14279

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  • Frequency doubling in gallium-lanthanum-sulphide glass with surface crystallized Ga6La10/3S14 thin films Reviewed

    Yong Ding, Atsuhiro Kondoh, Yoshinari Miura, Tokuro Nanba

    Applied Physics Letters   73 ( 6 )   738 - 740   1998

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    DOI: 10.1063/1.121985

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  • Wavelet structural analysis of silica glasses manufactured by different methods Reviewed

    Y Ding, T Nanba, Y Miura, A Osaka

    JOURNAL OF NON-CRYSTALLINE SOLIDS   222   50 - 58   1997.12

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  • Preparation and Properties of the ZrO_2-Dispersed MgO-Al_2O_3 Ceramics(Part 3) : Influence of MgO-Al_2O_3 Composition

    TSUBOI Hiroyuki, YOSHIMATSU Hideyuki, NANBA Tokuro, MIURA Yoshinari

    Journal of the Ceramic Society of Japan   105 ( 1223 )   588 - 594   1997.7

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    ZrO_2-dispersed MgO-Al_2O_3 ceramics with various MgO to Al_2O_3 compositional ratios were prepared from Mg(OH)_2 powder, α-Al_2O_3 powder and Zr-n-butoxide by calcining at 1000°C for 2h and sintering at 1600°C for 1h. The influence of the MgO-Al_2O_3 compositional ratio on the sinterability and mechanical properties was studied. Addition of 10 vol% ZrO_2 improved the relative density of the sintered specimens containing 50 and 62.5 mol% Al_2O_3. However, the addition was not effective at other compositional ratios. The bending strength was improved at composition containing more than 50 mol% Al_2O_3, Where the dispersed ZrO_2 Particles were in the form of tetragonal phase. The bending strength increased with increase in Al_2O_3 content in the ZrO_2 dispersed specimens. The fracture toughness was improved for all specimens by ZrO_2 dispersion, especially, for the specimen in which MgO-Al_2O_3 component was in a single crystalline phase.

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  • Preparation and properties of the ZrO2-dispersed MgO-Al2O3 ceramics .3. Influence of MgO-Al2O3 composition Reviewed

    H Tsuboi, H Yoshimatsu, T Nanba, Y Miura

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   105 ( 7 )   588 - 594   1997.7

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  • Photochromic properties in cadmium bismuth aluminate glasses and its oxidation treatment effect Reviewed

    DP Chen, Y Miura, Y Murata, T Nanba, A Osaka

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   105 ( 4 )   322 - 328   1997.4

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  • X-ray photoelectron spectroscopy of alkali tellurite glasses Reviewed

    Y. Himei, Y. Miura, T. Nanba, A. Osaka

    Journal of Non-Crystalline Solids   211 ( 1-2 )   64 - 71   1997

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    DOI: 10.1016/S0022-3093(96)00628-X

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  • Photochromic properties in cadmium bismuth aluminate glasses and its oxidation treatment effect

    Danping Chen, Yoshinari Miura, Yasuaki Murata, Tokuro Nanba, Akiyoshi Osaka

    Journal of the Ceramic Society of Japan   105 ( 4 )   322 - 328   1997

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  • Color Change of Glass and Glass-Ceramics in Bi_2O_3-CdO-Al_2O_3 System(Special Issue on Ceramics)

    CHEN Danping, MIURA Yoshinari, NANBA Tokuro, MURATA Yasuaki, OSAKA Akiyoshi

    Journal of the Society of Materials Science, Japan   45 ( 6 )   630 - 636   1996.6

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    Color change and its mechanisms for glasses and glass-ceramics in the Bi_2O_3-CdO-Al_2O_3 system prepared under various melting and annealing conditions were investigated. It was suggested that brown color of the glasses with comparatively low Bi content which were obtained by melting at high temperatures was caused by metallic Bi while deep green color of the glasses with comparatively high Bi content resulted from Bi^<2+> and defects. The deep color of the glasses markedly faded after annealing treatments for long time. Formation of the transparent glass-ceramics was assumed to be related to the oxygen defects. Color of the glass-ceramics was explained in term of oxygen defects and crystalline phases formed by annealing treatments.

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  • Thermochromism and temperature dependence of the energy gap in cadmium aluminum bismuthate glasses Reviewed

    DP Chen, Y Miura, T Nanba, A Osaka

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   104 ( 2 )   79 - 83   1996.2

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  • X-RAY-DIFFRACTION STUDY ON THE FRAMEWORK STRUCTURE OF AMORPHOUS TUNGSTEN TRIOXIDE FILMS Reviewed

    T NANBA, T TAKAHASHI, S TAKANO, J TAKADA, A OSAKA, Y MIURA, T KUDO, YASUI, I

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   103 ( 3 )   222 - 229   1995.3

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  • X-ray diffraction study on the framework structure of amorphous tungsten trioxide films

    Tokuro Nanba, Tadashi Takahashi, Sanae Takano, Jun Takada, Akiyoshi Osaka, Yoshinari Miura, Tetsuichi Kudo, Itaru Yasui

    Journal of the Ceramic Society of Japan. International ed.   103 ( 3 )   224 - 232   1995.3

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  • STRUCTURE OF 50NA(2)O.XAL(2)O(3).(50-X)P2O5 AND (50-X/2)NA2O.XAL(2)O(3).(50-X/2)P2O5 GLASSES

    Tokuro NANBA

    PHYSICS AND CHEMISTRY OF GLASSES   36 ( 1 )   1995

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  • Characterization of amorphous tungsten trioxide thin films prepared by rf magnetron sputtering method Reviewed

    Tokuro Nanba, Tadashi Takahashi, Jun Takada, Akiyoshi Osaka, Yoshinari Miura, Itaru Yasui, Akira Kishimoto, Tetsuichi Kudo

    Journal of Non-Crystalline Solids   178 ( C )   233 - 237   1994.11

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    DOI: 10.1016/0022-3093(94)90290-9

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  • Computer simulation on the structure and vibrational spectra in GePbOF glass Reviewed

    Tokuro Nanba, Takahiro Miyaji, Jun Takada, Akiyoshi Osaka, Yoshinari Miura, Itaru Yasui

    Journal of Non-Crystalline Solids   177 ( C )   131 - 136   1994.11

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    DOI: 10.1016/0022-3093(94)90522-3

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  • PHOTOCHROMIC PROPERTIES OF CD-CONTAINING GLASSES Reviewed

    Y MIURA, J FU, A OSAKA, T NANBA

    JOURNAL OF NON-CRYSTALLINE SOLIDS   178   64 - 68   1994.11

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  • COORDINATION CHANGE OF TE ATOMS IN BINARY TELLURITE GLASSES Reviewed

    Y HIMEI, A OSAKA, T NANBA, Y MIURA

    JOURNAL OF NON-CRYSTALLINE SOLIDS   177   164 - 169   1994.11

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  • CDTE MICROCRYSTALLITES DOPED IN MELT-QUENCHED BOROSILICATE GLASS Reviewed

    J FU, A OSAKA, T NANBA, Y MIURA

    JOURNAL OF MATERIALS RESEARCH   9 ( 2 )   493 - 497   1994.2

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  • SEGREGATION AND DISSOLUTION REACTIONS OF THE 2223-PHASE IN THE BI, PB-SR-CA-CU-O SYSTEM ON ANNEALING IN AIR

    Y KUSANO, T NANBA, J TAKADA, T EGI, Y IKEDA, M TAKANO

    PHYSICA C   219 ( 3-4 )   366 - 370   1994.1

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    DOI: 10.1016/0921-4534(94)90388-3

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  • Enhanced Surface Crystallization of Chromium(III)-Doped Lithium Lanthanum Borate Glasses due to Ultrasonic Treatment Reviewed

    Yong Ding, Yoshinari Miura, Tokuro Nanba, Akiyoshi Osaka

    Journal of the Society of Materials Science, Japan   43 ( 489 )   618 - 623   1994

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    DOI: 10.2472/jsms.43.618

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  • LOCAL-STRUCTURE AROUND ALUMINUM IN THE GLASSES OF THE SYSTEM AL2O3-PBO-CDO Reviewed

    J FU, A OSAKA, T NANBA, Y MIURA

    JOURNAL OF MATERIALS SCIENCE LETTERS   12 ( 12 )   935 - 938   1993.6

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  • Photochromic Glasses in the System SrO-ZnO-Al_2O_3

    FU Jie, OSAKA Akiyoshi, NANBA Tokuro, MIURA Yoshinari

    Journal of the Ceramic Society of Japan   101 ( 1169 )   99 - 101   1993.1

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    New aluminate glasses were obtained with the conventional melt-quench technique in the system SrO-ZnO-Al_2O_3. The glass forming region was determined. The glasses were colorless and had good chemical durability in laboratory conditions. When irradiated with UV-light, a broad absorption was induced with a peak at 470 nm (2.64 eV) and an ESR signal (77 K and 300 K) was induced with an apparent g-value of 2.006. Both the changes in optical density and the intensity of the ESR signal increased with the ZnO content. From the characteristic of ESR signal, coloring of glass was concluded to be due to the formation of hole trapped on oxygen and electron center resting on zinc ions.

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  • PHOTOCHROMIC-GLASSES IN THE SYSTEM SRO-ZNO-AL2O3 Reviewed

    J FU, A OSAKA, T NANBA, Y MIURA

    Journal of the Ceramic Society of Japan   101 ( 1 )   99 - 101   1993.1

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  • Photochromic glasses in the system SrO-ZnO-Al2O3

    Fu Jie, Akiyoshi Osaka, Tokuro Nanba, Yoshinari Miura

    Journal of the Ceramic Society of Japan. International ed.   101 ( 1 )   95 - 97   1993.1

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  • Raman Spectra and Constitution of Binary Tellurite Glasses Containing Typical Network Modifying Cations Reviewed

    Akiyoshi Osaka, Jianrong Qiu, Tatsuo Fujii, Tokuro Nanba, Jun Takada, Yoshinari Miura

    Journal of the Society of Materials Science, Japan   42 ( 476 )   473 - 477   1993

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  • The Formation of the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O in Samples Enclosed in Silver Pipe.

    Egi Toshio, Hosotani Katsunori, Nanba Tokuro, Takada Jun

    J. Jpn. Soc. Powder Powder Metallurgy   40 ( 2 )   216 - 219   1993

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    The formation of the high-Tc phase in the Bi-Pb-Sr-Ca-Cu-O system has been studied in ground powder samples enclosed in silver pipes.The samples with a composition of Bi:Pb:Sr:Ca:Cu=0.9:0.2:1.0:1.0:1.6 prepared by heating at 850°C for 24h were mechanically ground for various periods, put into silver pipes and heated at 840-850°C.The formation of the high-Tc phase was found to be promoted in the samples enclosed in the silver pipes, depending upon three factors: grinding time, atmosphere in the pipe and reaction between the powder sample and the silver pipe.

    DOI: 10.2497/jjspm.40.216

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  • NETWORK STRUCTURE OF RO2B2O3 GLASSES

    Tokuro NANBA

    PHYSICS AND CHEMISTRY OF GLASSES   34 ( 6 )   1993

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  • XPS STUDY OF ALUMINUM AND FLUORIDE IONS IN THE SYSTEM AL-CD-PB-O-F Reviewed

    J FU, A OSAKA, T NANBA, Y MIURA, H YAMANAKA

    MATERIALS LETTERS   15 ( 4 )   264 - 267   1992.12

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  • INFRARED AND RAMAN-SPECTRA OF BINARY TELLURITE GLASSES CONTAINING BORON AND INDIUM OXIDES Reviewed

    JR QIU, A OSAKA, T NANBA, J TAKADA, Y MIURA

    JOURNAL OF MATERIALS SCIENCE   27 ( 14 )   3793 - 3798   1992.7

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  • Network Structure of AlF3-BaF2-CaF2 Glass Reviewed

    T. Nanba, A. Osaka, J. Takada, Y. Miura, H. Inoue, Y. Akasaka, H. Hagihara, I. Yasui

    Journal of Non-Crystalline Solids   140   269 - 274   1992.6

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  • EXAFS OF TELLURIUM IN THE GLASSES OF THE B2O3-TEO2 SYSTEM Reviewed

    A OSAKA, QIU, JR, T NANBA, J TAKADA, Y MIURA, T YAO

    JOURNAL OF NON-CRYSTALLINE SOLIDS   142 ( 1-2 )   81 - 86   1992.4

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  • APPLICATION OF MOSSBAUER-SPECTROSCOPY TO IRON IONS IN LITHIUM TELLURITE GLASSES Reviewed

    JR QIU, A OSAKA, Y MIURA, T NANBA, J TAKADA

    PHYSICS AND CHEMISTRY OF GLASSES   33 ( 1 )   12 - 15   1992.2

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  • Structure and Photochromism of Al-Cd-O-F Glasses Reviewed

    Fu Jie, Akiyoshi Osaka, Yoshinari Miura, Jun Takada, Tokuro Nanba

    Journal of the Society of Materials Science, Japan   41 ( 464 )   578 - 582   1992

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    DOI: 10.2472/jsms.41.578

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  • Microstructure of Hydroxyapatite-Hematite Composite Particles Prepared by Ultrasonic Spray Pyrolysis.

    Osaka Akiyoshi, Chiba Akira, Fujii Tatsuo, Nanba Tokuro, Takada Jun, Miura Yoshinari

    J. Jpn. Soc. Powder Powder Metallurgy   39 ( 3 )   239 - 242   1992

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    Aqueous solutions of calcium nitrate stabilized with EDTA, ammonium dihydrogen orthophosphate and iron (III) nitrate were mixed before they were subject to ultrasonic spraying and to subsequent pyrolysis in an electric furnace, and particles of 0.45μm in average diameter consisting of hydroxyapatite and hematite were obtained. Surface morphology and microstructure of the particles were examined. A nucleus (hematite)-shell (hydroxyapatite) type structure was observed for larger particles (>0.8μm in diameter) though the particles of medium size apparently had a uniform microstructure. Such structural difference due to the particle size was explained in terms of decomposition of the Ca-EDTA chelating bond at lowest temperatures and temperature distribution in the sprayed mists.

    DOI: 10.2497/jjspm.39.239

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  • Effect of Li-addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System. (II).

    Takada Jun, Fujiwara Masashi, Egi Toshio, Nanba Tokuro, Ikeda Yasunori, Takano Mikio, Mazaki Hiromasa

    J. Jpn. Soc. Powder Powder Metallurgy   39 ( 5 )   386 - 389   1992

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    The effects of Li-addition to the high-Tc phase in Bi-Pb-Sr-Ca-Cu-O system have been studied for the samples with the nominal composition of Bi:Pb:Sr:Ca:(Cu, Li)=0.96:0.24:1.0:1.1:(1.6-x, x) heated at 840 to 845°C for 144h in air (x=0 to 0.2). The characterization of the samples has been made by DTA, the measurements of XRD and DC electrical resistivity, SEM observation and ICP analysis. The Li-addition promotes the formation of the high-Tc phase. The sample with x=0.05 heated at 842°C for 144h exhibits Tc=116K, while Tc=109K for the Li-free sample (x=0) heated at 842°C for 120h. The results of ICP analysis showed that the Li content of the samples heated at 842°C for 120h was very low.

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  • Effect of Li Addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System. (I).

    Ohara Taigen, Endo Kazuyo, Egi Toshio, Nanba Tokuro, Takada Jun, Ikeda Yasunori, Takano Mikio, Bando Yoshichika, Mazaki Hiromasa

    J. Jpn. Soc. Powder Powder Metallurgy   39 ( 5 )   382 - 385   1992

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    Effects of the Li-addition to the high-Tc phase in the Bi-Pb-Sr-Ca-Cu-O system have been studied for samples with starting compositions of Bi:Pb:Sr:Ca:Cu:Li=0.9:0.2:1.0:1.0:1.6:x with x=0-0.10 and heated at 820-850°C for 40-96h. The temperature, at which an endothermic reaction occurred, lowered markedly as x increased. Tc was raised up to 116K for the sample with x=0.03 heated at 840°C for 48h, while a susceptibility measurement revealed that Tc=110K. The lattice constants, a and c, were independent of Li content. ICP analysis showed that the heat treated samples had very low Li content. The results suggest that a small amount of the high-Tc phase with Tc=116K forms on the surface of the high-Tc phase with Tc=110K.

    DOI: 10.2497/jjspm.39.382

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  • Formation Process of the Li-addition High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System.

    Ohara Taigen, Ito Hiroyuki, Takada Jun, Fujiwara Masashi, Endo Kazuyo, Egi Toshio, Nanba Tokuro, Ikeda Yasunori, Hiroi Zenji, Takano Mikio, Bando Yoshichika

    J. Jpn. Soc. Powder Powder Metallurgy   39 ( 9 )   767 - 770   1992

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    Li addition was found to raise Tc up to 116K in the high-Tc phase in the Bi-Pb-Sr-Ca-Cu-O system. But the role and behavior of Li has not yet been clarified. This study has been done for samples with starting compositions of Bi0.9Pb0.2Sr1.0Ca1.0Cu1.6LixOy with x=0.03 to 0.10 and heated at 825 to 840°C for 1 to 48h. ICP analysis showed that Li content decreased with increasing sintering time. The lattice constant a decreased at first and then gradually increased. On the other hand, the lattice constant c passed through a maximum around 4h.

    DOI: 10.2497/jjspm.39.767

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  • Superconducting Properties of Silver-sheathed Bi-Pb-Sr-Ca-Cu-O Superconducting Tapes.

    Egi Toshio, Mori Naoyuki, Hosotani Katsunori, Nanba Tokuro, Takada Jun

    J. Jpn. Soc. Powder Powder Metallurgy   39 ( 5 )   404 - 407   1992

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    The BPSCCO powder with a nominal composition of Bi:Pb:Sr:Ca:Cu=0.96:0.24:1.0:1.1:1.6 prepared by the co-precipitation method was packed into a Ag tube. The tape was fabricated by plastic deformation. Optimized heat treatment conditions for the tape samples have been studied. The critical current density of the tape samples after the 3rd heat treatment was found to depend on the temperature of the 1st heat treatment. The maximum critical current density was 10, 500A/cm2 at zero field and 77K in the sample subjected to the 1st heat treatment at 845°C. The impurity phases with a particle size of 5-10μm, such as Ca-Sr-Cu-O and Ca-Sr-Pb-O, were present even in the sample with Jc=10, 500A/cm2.

    DOI: 10.2497/jjspm.39.404

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  • Amorphous tantalum and niobium oxide proton conductors derived from respective peroxo polyacids

    A. Kishimoto, T. Kudo, T. Nanba

    Solid State Ionics   53-56 ( 2 )   993 - 997   1992

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    DOI: 10.1016/0167-2738(92)90282-T

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  • NETWORK STRUCTURE OF ALF3-BAF2-CAF2 GLASS

    Tokuro NANBA

    JOURNAL OF NON-CRYSTALLINE SOLIDS   140 ( 1-3 )   1992

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    DOI: 10.1016/S0022-3093(05)80780-X

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  • STRUCTURAL-ANALYSIS OF ALF3-CAF2-YF3 GLASS BY DIFFRACTION METHODS

    Tokuro NANBA

    JOURNAL OF NON-CRYSTALLINE SOLIDS   140 ( 1-3 )   1992

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    DOI: 10.1016/S0022-3093(05)80776-8

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  • REFLECTIVITY AND ELECTRONIC-STRUCTURES OF LAYERED IONIC-CRYSTALS (CNH2N+1NH3)2CUCL4 - N = 1,2,3

    Tokuro NANBA

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   61 ( 7 )   1992

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    DOI: 10.1143/JPSJ.61.2224

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  • The influence of internal stress on the amorphous structure of wet-coated films derived from peroxopolytantalate solution

    A. Kishimoto, H. Sugimoto, T. Nanba, T. Kudo

    Thin Solid Films   204 ( 1 )   L5 - L8   1991.9

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    DOI: 10.1016/0040-6090(91)90486-H

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  • Structural study of peroxopolytungstic acid prepared from metallic tungsten and hydrogen peroxide Reviewed

    Tokuro Nanba, Sanae Takano, Itaru Yasui, Tetsuichi Kudo

    Journal of Solid State Chemistry   90 ( 1 )   47 - 53   1991

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    DOI: 10.1016/0022-4596(91)90170-M

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  • Structural study of amorphous wo3 thin films prepared by the ion exchange method Reviewed

    T. Nanba, Y. Nishiyama, I. Yasui

    Journal of Materials Research   6 ( 6 )   1324 - 1333   1991

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    DOI: 10.1557/JMR.1991.1324

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  • BA ADDITION TO THE HIGH-TC PHASE IN THE BI-PB-SR-CA-CU-O SYSTEM

    Tokuro NANBA

    PHYSICA C   190 ( 1-2 )   1991

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    DOI: 10.1016/S0921-4534(05)80213-8

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  • X-RAY-DIFFRACTION STUDY OF THE STRUCTURE OF SILICON-NITRIDE FIBER MADE FROM PERHYDROPOLYSILAZANE

    Tokuro NANBA

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY   74 ( 3 )   1991

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    DOI: 10.1111/J.1151-2916.1991.TB04076.X

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  • STRUCTURE OF AMORPHOUS TA2O5.NH2O DERIVED FROM PEROXO-POLYTANTALATE SOLUTION

    Tokuro NANBA

    JOURNAL OF SOLID STATE CHEMISTRY   90 ( 1 )   1991

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    DOI: 10.1016/0022-4596(91)90177-J

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  • SPIN-COATED TA2O5.NH2O FILMS DERIVED FROM PEROXO POLY-TANTALATE SOLUTION

    Tokuro NANBA

    SOLID STATE IONICS   40-1   903 - 905   1990.8

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    DOI: 10.1016/0167-2738(90)90149-L

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  • Application of Thin Film Diffractometer to Structural Study of Amorphous Thin Films Reviewed

    Tokuro Nanba, Itaru Yasui

    Analytical Sciences   5 ( 3 )   257 - 262   1989.2

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    DOI: 10.2116/analsci.5.257

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  • X-ray diffraction study of microstructure of amorphous tungsten trioxide films prepared by electron beam vacuum evaporation Reviewed

    Tokuro Nanba, Itaru Yasui

    Journal of Solid State Chemistry   83 ( 2 )   304 - 315   1989

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    DOI: 10.1016/0022-4596(89)90180-1

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  • Diffraction Studies of AlF3-BaF2-CaF2 Glasses Reviewed

    T. Nanba, H. Inoue, Y. Arai, H. Hasegawa, M. Misawa, I.Yasui

    Materials Science Forum   32-33   385 - 390   1988.9

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  • DIFFRACTION STUDIES OF AIF3-BAF2-CAF2 GLASSES

    Tokuro NANBA

    HALIDE GLASSES V   1988

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  • COMPUTER-SIMULATION OF RAMAN-SPECTRA OF FLUORIDE GLASSES

    Tokuro NANBA

    HALIDE GLASSES V   1988

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Books

  • Ceramic Data Book 2013

    ( Role: Joint author)

    2013.12 

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  • ガラスの百科事典

    作花済夫( Role: Joint author ,  19.7 分光法によるガラス構造の研究)

    朝倉書店  2007.10  ( ISBN:9784254201246

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  • ガラス工学ハンドブック

    山根正之( Role: Joint author ,  第II編 ガラス構造論 3.ガラス構造論 3.2 ガラス構造解析)

    朝倉書店  1999.7  ( ISBN:9784254252385

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  • セラミックス用語辞典

    セラミックス用語辞典編集委員会( Role: Joint author)

    日刊工業新聞社  1997.9  ( ISBN:4526040622

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  • ニューガラスハンドブック

    ニューガラスハンドブック編集委員会( Role: Joint author ,  I 基礎編 2 ニューガラスの分析法 2・3 構造解析)

    丸善  1991.7  ( ISBN:4621036025

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MISC

  • Investigation of chemical bonding states in various local structures of lead borates

    長尾正昭, 崎田真一, 紅野安彦, 難波徳郎, 椋木敦, 千葉保, 菊池孝浩, 桜木智史, 大和田仁

    日本セラミックス協会年会講演予稿集(Web)   2023   2023

  • Evaluation on the local structure in RMC model of tin phosphate glasses

    長尾正昭, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会秋季シンポジウム講演予稿集(Web)   35th   2022

  • ファイバ延伸処理によるガラスの異方性発現挙動の調査

    三宅鴻大, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   59th (CD-ROM)   2021

  • 塩化物添加による土壌中の有害元素(Pb,Cd,Cr)の揮発挙動

    松葉和哉, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   59th (CD-ROM)   2021

  • 脱リンスラグの還元溶融に伴うリンの分配挙動

    横山晃青, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   59th (CD-ROM)   2021

  • 液相プロセスによる全固体ナトリウムイオン電池用硫化物固体電解質の作製

    宮川慶太, 紅野安彦, 難波徳郎, 仁科勇太

    セラミックス基礎科学討論会講演要旨集   59th (CD-ROM)   2021

  • Investigation of local structure stabilization of glass structural model using density functional theory calculation

    長尾正昭, 崎田真一, 紅野安彦, 難波徳郎, 椋木敦, 千葉保, 菊池孝浩, 桜木智史, 大和田仁

    日本セラミックス協会秋季シンポジウム講演予稿集(Web)   34th   2021

  • Distribution behavior of constituents in reducing melting of sewage sludge incineration ash

    木村直哉, 崎田真一, 紅野安彦, 難波徳郎

    ガラスおよびフォトニクス材料討論会講演要旨集   62nd   2021

  • Evaluation of the effect of melting conditions on the volatilization behavior of cesium in soil.

    藤堂元喜, 崎田真一, 紅野安彦, 難波徳郎

    ガラスおよびフォトニクス材料討論会講演要旨集   62nd   2021

  • Evaluation on the local structure in RMC model of radioactive iodine-immobilized glass

    長尾正昭, 崎田真一, 紅野安彦, 難波徳郎, 椋木敦, 千葉保, 菊池孝浩, 桜木智史, 大和田仁

    ガラスおよびフォトニクス材料討論会講演要旨集   62nd   2021

  • Evaluation on the local structure in RMC model of lead borate glasses

    長尾正昭, 崎田真一, 紅野安彦, 難波徳郎, 椋木敦, 千葉保, 菊池孝浩, 桜木智史, 大和田仁

    日本セラミックス協会年会講演予稿集(Web)   2021   2021

  • Structure and thermal stability of molybdenum-containing Na2O-B2O3 glasses

    大塚啓希, 崎田真一, 紅野安彦, 難波徳郎

    ガラスおよびフォトニクス材料討論会講演要旨集   62nd   2021

  • Effective calculation of reverse Monte Carlo modeling using replica exchange method

    谷口祐紀, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会秋季シンポジウム講演予稿集(Web)   34th   2021

  • Photoluminescence characteristics of SnO-ZnO-P2O5 glasses

    秦光次郎, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会年会講演予稿集(Web)   2021   2021

  • Development of Phosphorus Recovery Process from Dephosphorization Slag

    横山晃青, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会年会講演予稿集(CD-ROM)   2020   2020

  • Anisotropy evaluation of compressively deformed metaphosphate glasses with divalent metals

    朝倉啓陽, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会年会講演予稿集(CD-ROM)   2020   2020

  • Light-emitting characteristics of SnO-ZnO-P2O5 system glass

    秦光次郎, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会年会講演予稿集(CD-ROM)   2020   2020

  • Effect of bond valence sum constraints in a reverse Monte Carlo structural modeling of lead borate glass

    長尾正昭, 崎田真一, 紅野安彦, 難波徳郎, 椋木敦, 千葉保, 菊池孝浩, 桜木智史, 大和田仁

    日本セラミックス協会年会講演予稿集(CD-ROM)   2020   2020

  • Reproducibility evaluation on the local structure in RMC models of lead borate glasses

    長尾正昭, 崎田真一, 紅野安彦, 難波徳郎, 椋木敦, 千葉保, 菊池孝浩, 桜木智史, 大和田仁

    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)   33rd   2020

  • Journal of the Ceramic Society of Japan The 57th Symposium on Basic Science of Ceramics Preface

    Tokuro Nanba, Akira Nakajima, Masato Kakihana, Masayoshi Fuji, Youichi Shimizu, Soshu Kirihara, Takumi Fujiwara

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   127 ( 10 )   2019.10

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  • 鉛ホウ酸塩系ガラスの逆モンテカルロ法構造モデル化におけるBond Valence Sum拘束の有効性

    長尾正昭, 崎田真一, 紅野安彦, 難波徳郎, 椋木敦, 千葉保, 菊池孝浩, 桜木智史, 大和田仁

    ガラスおよびフォトニクス材料討論会講演要旨集   60th   2019

  • 2価金属メタリン酸塩ガラスの圧縮変形処理に伴う異方性の評価

    朝倉啓陽, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   57th   2019

  • Effect of bond valence sum constraints on the structural modeling of lead borate glass

    NAGAO Masaaki, SAKIDA Shinichi, BENINO Yasuhiko, NANBA Tokuro, MUKUNOKI Atsushi, CHIBA Tamotsu, KIKUCHI Takahiro, SAKURAGI Tomofumi

    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)   2019   2019

  • リン酸カルシウム系ガラスにおける異方性誘起過程の分子動力学構造モデル化

    松井郁也, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   56th   2018

  • 圧縮変形させたリン酸塩ガラスの異方性評価

    小林彩華, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   56th   2018

  • Structure and bonding states of glasses Invited

    Tokuro NANBA, Shinichi SAKIDA, Yasuhiko BENINO

    24 ( 391 )   339 - 344   2017.11

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  • Research Trend in Division of Basic Science in The Ceramic Society of Japan

    Nobuhito IMANAKA, Naoyoshi NUNOTANI, Tokuro NANBA, Hirokazu SASAKI, Akira NAKAJIMA

    Ceramics Japan : bulletin of the Ceramic Society of Japan   52 ( 6 )   437 - 440   2017.6

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  • Preface

    Nobuhiro Kumada, Nobuhito Imanaka, Tokuro Nanba

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   125 ( 10 )   P10 - P10   2017

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  • BPIガラス固化体の分子動力学シミュレーションを用いた構造解析

    菊川康一, 崎田真一, 紅野安彦, 難波徳郎, 椋木敦, 千葉保, 菊池孝浩, 桜木智

    セラミックス基礎科学討論会講演要旨集   55th   2017

  • リン酸塩ガラスの圧縮変形による力学的異方性

    小林彩華, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会年会講演予稿集(CD-ROM)   2017   2017

  • SnO-ZnO-P2O5系ガラスの構造と発光特性

    塩田将大, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   55th   2017

  • 量子ビームを用いたガラス・非晶質材料のナノスケール構造解析 放射光を利用した非晶質酸化ニオブ薄膜の構造解析

    桟敷剛, 岡野寛, 紅野安彦, 難波徳郎

    セラミックス   52 ( 5 )   2017

  • スパッタ法で製膜された非晶質酸化ニオブ薄膜の構造解析

    桟敷剛, 大城千夏, 尾原幸治, 小原真司, 紅野安彦, 難波徳郎, 岡野寛

    セラミックス基礎科学討論会講演要旨集   55th   2017

  • 土壌中のセシウムの揮発挙動に対する支配因子の探索

    永井福人, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   55th   2017

  • Recovery of Phosphorous from Slags Invited

    Tokuro NANBA, Shinichi SAKIDA, Yasuhiko BENINO

    Phosphorus letter   86 ( 1 )   40 - 46   2016.6

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  • 都市ごみ溶融スラグの構成元素の溶出挙動

    網田吉伸, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   54th   2016

  • Ag+-Na+電界イオン交換によりテルライトガラス中に生成する銀微粒子の状態

    宮本裕太, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   54th   2016

  • X線異常散乱によるテルライトガラスの構造解析

    元下知季, 崎田真一, 紅野安彦, 難波徳郎, 小原真司

    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)   29th   2016

  • 還元溶融時における脱リンスラグの構成成分の分配挙動

    木多英斗, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)   29th   2016

  • SnOドープZnO-P2O5系ガラスの発光特性

    塩田将大, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)   29th   2016

  • Environment and Glass in Japan Invited

    Tokuro NANBA, Shinichi SAKIDA, Yasuhiko BENINO

    Bulletin of the Ceramic Society of Japan   50 ( 12 )   944 - 946   2015.12

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  • Development of Recycling Process Utilizing Glass Properties Invited

    Tokuro NANBA, Shinichi SAKIDA, Yasuhiko BENINO

    22 ( 379 )   414 - 419   2015.11

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  • Material design for the ceramics coating with high mold releasability by using molecular orbital calculations

    T. Nanba, J. Fujihara, S. Sakida, Y. Benino

    Journal of the Faculty of Environmental Science and Technology   19 ( 1 )   22 - 25   2014.3

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  • 反応性RFマグネトロンスパッタ装置を用いてアルミ薄膜上に堆積させた酸化亜鉛・酸化ニオブナノアイランドの電気化学的特性

    桟敷剛, 紅野安彦, 難波徳郎, 岡野寛

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   61st   2014

  • 下水処理汚泥からのリンの回収プロセスの開発

    宮本亮, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   51st   2013

  • 分子軌道計算によるNbO6八面体の連結様式が電子状態に及ぼす影響評価

    桟敷剛, 紅野安彦, 難波徳郎, 岡野寛

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   60th   2013

  • Superoxide Dismutase1はSTAT3活性化を介してアンギオテンシンによる血管リモデリングを促進する

    白石安永, 石神徳郎, 鯨岡武彦, 新井田登三治, 難波貴之, 中家佑子, 伯野大彦, 磯田菊生, 足立健

    日本高血圧学会総会プログラム・抄録集   36th   2013

  • 分子軌道計算と光電子分光によるアモルファスNbOxの短距離構造の検討

    桟敷剛, 紅野安彦, 難波徳郎, 岡野寛

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   74th   2013

  • Advanced Ceramic Science and Technology in the Western Pacific Rim Area Preface

    Akiyoshi Osaka, Yoko Suyama, Akira Kishimoto, Nobuhito Imanaka, Tokuro Nanba, Satoshi Hayakawa

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   120 ( 1407 )   2012.11

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  • ガラスの相分離を利用した有用元素の回収

    難波徳郎, 崎田真一, 紅野安彦

    セラミックス   47 ( 2 )   105 - 109   2012

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  • 鉄鋼スラグからのリンの回収プロセスの開発

    河西宏樹, 崎田真一, 紅野安彦, 難波徳郎

    セラミックス基礎科学討論会講演要旨集   50th   2012

  • 湿式ボールミル法を用いた無機性産業廃棄物の再資源化技術の開発

    崎田真一, 紅野安彦, 難波徳郎

    環境制御   ( 33 )   2012

  • New Glass Research Topics : Application of INTERGLAD Database and Multiple Regression Analysis for Structural Study of Glasses

    New glass   26 ( 4 )   21 - 25   2011.12

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  • ガラスの相分離を利用した無機系廃棄物のケミカルリサイクル

    難波徳郎, 崎田真一, 紅野安彦

    Phousphorus Letter   70 ( 70 )   27 - 34   2011

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  • Na2O-CaO-B2O3-SiO2系ガラスの分相に伴う遷移金属元素の分配

    大野愛美, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会年会講演予稿集   2011   2011

  • Structure and Basicity of Borosilicate Glasses

    T. Nanba, S. Sakida, Y. Benino, Y. Miura

    NEW GLASS   25 ( 4 )   28 - 32   2010.12

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  • 耐火物の耐スラグ侵食性に及ぼす非酸化物添加効果

    森田圭輔, 崎田真一, 紅野安彦, 難波徳郎

    耐火物   62 ( 3 )   2010

  • Material recycling of inorganic sludge by wet ball milling

    Environmental research & control   31 ( 31 )   26 - 31   2009

  • Studies on optical properties of SnO-B2O3 glasses as lead-free glasses

    崎田真一, 難波徳郎, 三浦嘉也

    環境制御   30 ( 30 (Web) )   39 - 44   2008

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  • 一般廃棄物高温焼却炉用クロムフリー耐火物の開発

    伊賀棒公一, 崎田真一, 紅野安彦, 難波徳郎, 藤田基成, 山口明良

    耐火物   60 ( 3 )   2008

  • Material recycling of municipal waste slags by using phase separation of glass

    Journal of the Faculty of Environmental Science and Technology,Okayama University   Vol.12(1) pp.161-165   161 - 165   2007

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  • Structural Analysis of Amorphous NbOx Thinfilm Using Synchrotron Radiation Invited

    Go SAJIKI, Hiroshi OKANO, Yasuhiko BENINO, Tokuro NANBA

    Bulletin of the Ceramic Society of Japan   52 ( 5 )   362 - 364   2007

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  • Material recycling of blast furnace slag by phase separation of glass

    崎田真一, 三上修平, 難波徳郎, 三浦嘉也

    環境制御   29 ( 29 (Web) )   11 - 15   2007

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  • Regression Analysis on the Amount of Tetrahedral Boron in Borosilicate Glasses

    T. Nanba, S. Sakida, Y. Miura

    Proceedings of Materials Science & Technology 2006, Cincinnati, USA   2006

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  • Recycling of Municipal Waste Slag Using Phase Separation of Glass

    T. Imaoka, S. Sakida, T. Nanba, Y. Miura

    Proceedings of Materials Science & Technology 2006, Cincinnati, USA   2006

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  • Influence of the Composition and Microstructure on Property of the Al2O3-Cr2O3 Refractory Materials

    M. Fujita, J. Ommyoji, A. Yamaguchi, K. Inukai, T. Nanba, Y, Miura

    Proceedings of the 1st International Congress On Ceramics, Toronto, Canada   2006

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  • Ab Initio Calculation of 17O NMR Parameters of Tricluster Oxygen Sites in Borosilicate Glasses

    Y. Yoneyama, S. Sakida, T. Nanba, Y. Miura

    Proceedings of Materials Science & Technology 2006, Cincinnati, USA   2006

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  • Structure and Optical Properties of TiO2 Containing Oxide Glasses

    K. Inoue, S. Sakida, T. Nanba, Y. Miura

    Proceedings of Materials Science & Technology 2006, Cincinnati, USA   2006

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  • Correlation between the Basicity and Optical Property of Er3+ Ion in Oxide Glasses

    Y. Tateyama, S. Sakida, T. Nanba, Y. Miura

    Proceedings of Materials Science & Technology 2006, Cincinnati, USA   2006

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  • Molecular Orbital Calculation on the Chemical Bonding Character of Phosphate Glasses

    Y. Asano, S. Sakida, T. Nanba, Y. Miura

    Proceedings of Materials Science & Technology 2006, Cincinnati, USA   2006

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  • Studies on optical properties of SnO-based glasses as lead-free glasses

    崎田真一, 増田紘一, 難波徳郎, 三浦嘉也

    環境制御   ( 28 (Web) )   2006

  • Optical properties of waveguides of Er3+-doped tellurite glasses prepared by Ag+-Na+ ion-exchange

    S. Sakida, T. Nanba, Y. Miura

    Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology (PacRim6)   2005

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  • Compositional Dependence of Refractive Index in Tellurite Glasses

    S. Akamine, S. Sakida, T. Nanba, Y. Miura

    Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology (PacRim6)   2005

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  • Theoretical Interpretation of 17O NMR Spectra in Borosilicate Glasses

    M. Urushihara, S. Sakida, T. Nanba, Y. Miura

    Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology (PacRim6)   2005

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  • Coloration and bleaching phenomena of amorphous WO3 films due to the electrochemical insertion of divalent cations

    Y. Domori, S. Sakida, T. Nanba, Y. Miura

    Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology (PacRim6)   2005

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  • Optical properties of rare earth ions in heavy metal oxide glasses

    R. Yamaguchi, S. Sakida, T. Nanba, Y. Miura

    Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology (PacRim6)   2005

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  • Optical Properties of Bi2O3-La2O3-Al2O3-B2O3 Glasses

    S. Sumimiya, S. Sakida, T. Nanba, Y. Miura

    Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology (PacRim6)   2005

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  • Bi2O3系ガラスの構造

    難波徳郎, 崎田真一, 三浦嘉也

    New Glass   20 ( 2 )   35 - 43   2005

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  • Chemical Bonding Character of the Network Forming Bonds in Oxide Glasses Invited

    T. Nanba, S. Sakida, Y. Miura

    Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology (PacRim6)   2005

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  • 廃棄物溶融炉用耐火物の断熱性に及ぼす組成と組織の影響

    藤田基成, 隠明寺準治, 山口明良, 犬飼恵輔, 難波徳郎, 三浦嘉也

    耐火物   57 ( 12 )   2005

  • Evaluation of Surface State of Ceramic Particles Suspended in Aqueous Solution by Potentiometric Titration Method

    三浦嘉也, 難波徳郎, 篠田真克

    岡山大学環境理工学部研究報告   9 ( 1 )   153 - 162   2004

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  • Spectral properties of erbium-doped HMO glasses for 1.5 mu m broadband amplification

    T Okada, S Matsumoto, T Nanba, Y Miura

    INTERNATIONAL SYMPOSIUM ON PHOTONIC GLASS (ISPG 2002)   5061   67 - 71   2003

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  • Effects of ultrasonic treatment on the preparation of transparent glass-ceramic phosphor

    井上輝英, 中島瑞穂, 難波徳郎, 三浦嘉也

    岡山大学環境理工学部研究報告   7 ( 1 )   113 - 118   2002

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  • Upconversion property and light scattering in Tm(3+)-doped glass-ceramics

    三浦嘉也, DING Yong, 村田隆, 姫井裕助, 難波徳郎

    Journal of the Faculty of Environmental Science and Technology,Okayama University   7 ( 1 )   119 - 125   2002

  • アルカリシリケート2成分結晶およびガラスの電子状態

    萩原達也, 姫井裕助, 松本修治, 難波徳郎, 三浦嘉也

    DV-Xα研究協会会報   13 ( 1 )   2000

  • Photoconductive and Photovoltaic Properties in Cadmium Bismuth Aluminate Glasses

    Chen Danping, Watanabe Tomohiro, Miura Yoshinari, Nanba Tokuro

    4 ( 1 )   147 - 158   1999

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  • Bi2O3-Li2O系ガラスの構造解析と規格化作業の自動化について Part 1 70Bi2O3・30Li2Oガラスの動径分布解析

    難波徳郎, 渡辺智大, 三浦嘉也

    KEK Proceedings   ( 99-13 )   1999

  • Bi2O3-Li2O系ガラスの構造解析と規格化作業の自動化について Part 2. 規格化作業の自動化

    難波徳郎

    KEK Proceedings   ( 99-13 )   1999

  • Preparation and Properties of ZnO Transparent Conductive Thin Films by Activated Reactive Evaporation Method

    2 ( 1 )   121 - 129   1997.1

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  • 314 Sm_2Fe_<17>N_x 化合物中のα-Fe 相の析出挙動について

    福井 力雄, 和田 誠司, 長江 正寛, 藤井 達夫, 高田 潤, 難波 徳郎, 桑原 秀行

    学術講演会講演論文集   44   93 - 94   1995

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  • REFINEMENT AND RE-FORMATION OF THE BI-2223 PHASE

    Y KUSANO, T NANBA, J TAKADA, Y IKEDA, M TAKANO

    PHYSICA C   235 ( Pt 1 )   477 - 478   1994.12

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  • Mechanical Grinding and Reforming Process of the Pb-substituted 2223 Phase.

    Takada Jun, Nagae Masahiro, Kusano Yoshihiro, Nanba Tokuro, Ikeda Yasunori, Takano Mikio

    J. Jpn. Soc. Powder Powder Metallurgy   41 ( 4 )   396 - 399   1994.4

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    Mechanical grinding and reforming process of the Pb-substituted 2223 phase has been studied for the monophasic samples with a composition of Bi0.9Pb0.2SrCaCu1.6OZ. The 2223 phase changes to ultla-fine powder by full grinding, exhibiting no magnetic response, while the ultra-fine powder and the small 2223 crystals coexist in samples ground for short periods. Some second phases were formed in the ground powder subjected to heating at temperatures between 500°C and 800°C. On the other hand, annealing of the bulk samples below 800°C leads to precipitation of the 3321 phase identified as Sr2.5Bi0.5Pb3Ca2CuOZ. Precipitation of second phases in the coexistent powder was interpreted by those in ultra-fine powder and bulk samples.

    DOI: 10.2497/jjspm.41.396

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  • Effect of Annealing on Pinning Force of Bi-2223 Phase

    Yoshihiro Kusano, Youichi Ohkami, Tokuro Nanba, Jun Takada, Yasunori Ikeda, Mikio Takano, Yoshichika Bando

    Journal of the Japan Society of Powder and Powder Metallurgy   41 ( 12 )   1501 - 1504   1994

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    Pining characteristics due to the precipitates of the "3321"(Sr2.5Bi0.5Pb3Ca2CuOz) phase have been studied in the Bi-2223 phase in the Bi-Pb-Sr-Ca-Cu-O system by mainly XRD and magnetic measurements. The precipitation of the "3321" phase was controlled by changing annealing temperature and annealing time in air. On annealing at 750°C for 10min and 1h, the larger hysteresis loops in M-H curves were observed in comparison with the initial one before annealing. However, the hysteresis loops became smaller with increasing precipitation of the "3321 " phase. Furthermore, the 2223 phase annealed at 400°C and 500°C, in which no precipitation of the "3321 " phase was observed, exhibits larger hysteresis loops.

    DOI: 10.2497/jjspm.41.1501

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  • Effect of Heating Atmosphere on Segregation and Dissolution of the Pb-compound in the Bi-2223 Phase

    Yoshihiro Kusano, Tokuro Nanba, Jun Takada, Yasunori Ikeda, Mikio Takano

    Journal of the Japan Society of Powder and Powder Metallurgy   41 ( 4 )   388 - 391   1994

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    Thermal behavior of the Bi-2223 phase in the Bi, Pb-Sr-Ca-Cu-O system, especially segregation and dissolution reaction of the "3321" phase which was identified as Sr2.5Bi0.5Pb3Ca2CuO2, has been studied by XRD, SQUID and resistivity measurements. On annealing below 830°C in air, the "3321" phase precipitated from the 2223 crystals. When the 2223 phase was annealed at 750°C in O2stream, the precipitation of the "3321 " phase increased. On annealing at 750°C in Ar stream, however, no precipitation of the "3321" phase was detected. By reheateing at 850°C even for 1min, the "3321" phase was almost dissolved into the mother 2223 crystals. When the 2223 phase was reheated at 750°C in Ar stream after annealing at 750°C in air, the "3321 " phase disappeared. On the contrary, the "3321" phase was stable on reheating at 870°C in O2 stream. Therefore, it seems that the "3321" and the 2223 phase coexist in epuilibrium in a high oxygen partial pressure.

    DOI: 10.2497/jjspm.41.388

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  • Refining and Thermal Behavior of the Bi-2223 Phase

    Yoshihiro Kusano, Tokuro Nanba, Jun Takada, Yasunori Ikeda, Mikio Takano, Yoshichika Bando

    Journal of the Japan Society of Powder and Powder Metallurgy   41 ( 12 )   1497 - 1500   1994

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    Refining behavior due to a small mechanical force and re-formation process of the 2223 phase on heating have been examined for the samples with a nominal composition of Bi1.8Pb0.4Sr2Ca2Cu3.2Oz by XRD, TEM, ED, AFM and TG-DTA. The 2223 phase is brittle and easily cleaved at Bi-O double layers in its crystals by a small mechanical force, resulting in changing into the superfine powder with a thickness of 1/2c. On heating the ground powder at 500°C to 800°C in air, various phases were formed from the superfine powder.

    DOI: 10.2497/jjspm.41.1497

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  • 31p-PSB-46 Preparation of the Fe_3O_4/MO artificial superlattices by a reactive evaporation method

    Fujii T., Sakamoto M., Asano M., Nanba T., Osaka A., Takada J., Miura Y.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   48 ( 3 )   121 - 121   1993.3

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  • Chemical and Mechanical Stability of the Ba-added High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System. Reviewed

    Takada Jun, Fujisaka Kosei, Hosotani Katsunori, Egi Toshio, Kusano Yoshihiro, Nanba Tokuro, Ikeda Yasunori, Takano Mikio

    J. Jpn. Soc. Powder Powder Metallurgy   40 ( 2 )   204 - 207   1993.2

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    Chemical and mechanical stability of the Ba-added high-Tc phase has been studied using XRD and DTA for samples of Bi0.9Pb0.2Sr1.0BaxCa1.0Cu1.6Oz with x=0 and 0.05. Some impurities were observed in all samples after the heat treatment at 300-820°C. BaPb0.75Bi0.25O3 was also formed in the Ba-added samples heated at 700-800°C. These impurities were thought to be formed from the amorphous phase which was produced by mechanical grinding of the high-Tc phase. The impurities disappeared and an almost monophasic sample of the high-Tc phase was obtained by heating at 850°C. The lattice parameter c of the Ba-added high-Tc phase was longer than that of the Ba-free one above 800°C. The parameter c of the Ba-added sample heated at 850°C increased with an increase of heating time and was saturated over 48h. The increase of c was due to the Ba dissolution in the high-Tc phase.

    DOI: 10.2497/jjspm.40.204

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  • Effect of Li Addition to the Low-Tc Phase in the Bi-Sr-Ca-Cu-O System. (II). Reviewed

    Endo Kazuyo, Kusano Yoshihiro, Nanba Tokuro, Takada Jun

    J. Jpn. Soc. Powder Powder Metallurgy   40 ( 2 )   196 - 199   1993.2

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    The effect of Li addition to the low-Tc phase in Bi-Sr-Ca-Cu-O system has been studied for the samples with nominal compositions of Bi:Sr:Ca:Cu:Li=2:3-y:y:2:x(x=0 to 0.6, y=1.25, 1.5, 2.0) heated at 600 to 760°C for 12 to 48h in air. The Li addition promotes the formation of the low-Tc phase. Monophasic samples of the low-Tc phase were obtained for x=0.2 to 0.6 by heating at remarkably lower temperatures. The lattice constant c of the low-Tc phase depends on y as well as Li content. As the heating time extends, the Li content in the low-Tc phase decreases. For y=1.25 and 1.5 c increases as the Li content increases. On the contrary, c for y=2.0 decreases as the Li content increases.

    DOI: 10.2497/jjspm.40.196

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  • Phases and their relations in the Bio1.5-Sro(SrCo3)-cuo System at 720° Reviewed

    Yoshihiro Kusano, Tokuro Nanba, Jun Takada, Yasunori Ikeda, Mikio Takano, Yasuo Takeda

    Journal of the Japan Society of Powder and Powder Metallurgy   40 ( 11 )   1049 - 1052   1993

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  • Chemical and Mechanical Stability of the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-o System (IV)—Formation of the High-Tc Phase in Amorphous Powder Prepared by Mechanical Grinding— Reviewed

    Yoshihiro Kusano, Toshinobu Niinae, Tokuro Nanba, Jun Takada, Yasunori Ikeda, Mikio Takano

    Journal of the Japan Society of Powder and Powder Metallurgy   40 ( 2 )   187 - 190   1993

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  • Chemical Stability of the Bi-2223 Phase

    Yoshihiro Kusano, Tokuro Nanba, Jun Takada, Yasunori Ikeda, Mikio Takano, Toshio Egi

    Journal of the Japan Society of Powder and Powder Metallurgy   40 ( 11 )   1057 - 1060   1993

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    Chemical stability of the Bi-2223 phase has been studied for the samples Bi0.9Pb0.2SrCaCu1.6O2 Annealing of the bulk samples below 800°C leads to precipitation of the 3321 phase identified as Sr2.5Bi0.5Pb3Ca2CuOz. The precipitation of the 3321 phase from the 2223 phase decreases the volume fraction of the 2223 phase but Tc (x) remains unchanged. It was found by XRD and SQUID measurements and SEM observation that, through reheating at 850°C after heating at 750°C, the 3321 phase disappeares and the volume fraction of the 2223 phase perfectly recovers.

    DOI: 10.2497/jjspm.40.1057

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  • Preparation of Fe3O4 Single-crystalline Films by Reactive Evaporation Method. Reviewed

    Fujii Tatsuo, Sakamoto Masakatsu, Asano Mitsuhiro, Nanba Tokuro, Osaka Akiyoshi, Miura Yoshinari, Takada Jun, Shimura Ken-ichi, Terashima Takahito, Bando Yoshichika

    J. Jpn. Soc. Powder Powder Metallurgy   39 ( 11 )   981 - 984   1992.11

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    (111)- and (100)-oriented Fe3O4 films were epitaxially formed on a-A12O3(0001) and MgO(100) single-crystalline substrates, respectively, by reactive evaporation method. The formation ranges of the epitaxial Fe304 films were determined as a function of substrate temperature, oxygen partial pressure, and a deposition rate. Their crystalline qualities were examined by various methods such as X-ray diffraction, RHEED and resistivity mesurements. A lattice mismatch of about 0.3% between Fe3O4 and MgO was very small. Then the film deposited on MgO seemed to have a good crystallinity and a smooth surface. Moreover the Verwey transition was clearly detected by a resistivity mesurement at about 110K. The transition temperature was nearly consistent with that of the bulk, indicating a good stoichiornetry of the sample film.

    DOI: 10.2497/jjspm.39.981

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  • Chemical and Mechanical Stability of the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System. (I). Effects of Heat Treatment of Crushed Powder of the High-Tc Phase.:Effects of Heat Treatment of Crushed Powder of the High-Tc Phase Reviewed

    Takada Jun, Hosotani Katsunori, Fujiwara Masashi, Kusano Yoshihiro, Nanba Tokuro, Ikeda Yasunori, Takano Mikio

    J. Jpn. Soc. Powder Powder Metallurgy   39 ( 9 )   779 - 782   1992.9

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    Chemical and mechanical stability of the high-Tc phase has been studied for the samples of Bi0.9Pb0.2Sr1.0Ca1.0Cu1.6Ox. Mechanical grinding converts the high-Tc phase into a nonsuperconducting amorphous phase. The ground high-Tc phase is not stabilized on annealing at lower temperatures below 820°C. Annealing at lower temperature leads to precipitation of some impurity phases and the low-Tc phase which depends on annealing temperature and time. The high-Tc phase is recovered by annealing at 850°C. The lattice parameters a and c of the high-Tc phase annealed at 850°C are longer than those below 820°C.

    DOI: 10.2497/jjspm.39.779

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  • Effect of Li Addition to the Low-Tc Phase in the Bi-Sr-Ca-Cu-O System. (I). Reviewed

    Takada Jun, Endo Kazuyo, Kusano Yoshihiro, Nanba Tokuro

    J. Jpn. Soc. Powder Powder Metallurgy   39 ( 9 )   763 - 766   1992.9

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    The effect of Li-addition to the low-Tc phase in Bi-Sr-Ca-Cu-O system have been studied for the samples with nominal compositions of Bi:Sr:Ca:Cu:Li=2:1.5:1.5:2-x:x heated at 720 to 845°C for 12 to 24h in air (x=0 to 0.8). The Li-addition promotes the formation of the low-Tc phase. Single phase of the low-Tc phase was obtained for the sample with x=0.2 to 0.4 more easily than the sample with x=0. The lattice constant c of the low-Tc phase increases as the Li content increases. As the heating period becomes longer, the amount of Li content in the low-Tc phase decreases.

    DOI: 10.2497/jjspm.39.763

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  • Preparation and Characterization of Ti(2)O(3) Films Deposited on Sapphire Substrate by Activated Reactive Evaporation Method

    Fujii Tatsuo, Sakata Naoki, Nanba Tokuro, Osaka Akiyoshi, Miura Yoshinari, Takada Jun

    Memoirs of the Faculty of Engineering, Okayama University   26 ( 2 )   69 - 75   1992.3

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  • Effect of Ba Addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System(V) Reviewed

    Yoshihiro Kusano, Kazuhiro Yamaguchi, Minoru Fukuhara, Akira Doi, Toshio Takada, Masashi Fujiwara, Jun Takada

    Jpn. J. Powder Powder Metall.   39 ( 5 )   374 - 377   1992

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    The effects of cooling condition and Ba addition time on Tc of high-Tc phase in the Bi-Pb-Sr-Ca-Cu-O system were studied. X-ray diffraction and DC resistance measurements were carried out to observe phase identification and Tc values for a series of samples with compositions of Bi:Pb:Sr:Ba:Ca:Cu=0.9:0.2:1.0:X:1.0:1.6(X=0-0.05). When a mixture of BaCO3 and synthesized high-Tc phase was heated at 850°C for 60h in air, only a solid solution of high-Tc phase was formed in a quenched sample. However, in a sample cooled down slowly, Bi3(Sr, Ba)4Ca3Oz was found as an impurity phase in addition to the solid solution of high-Tc phase. Mixtures of BaCO3 (X=0.04) and the rest of metal oxides or metal carbonates were heated at 845°C 96h in air. Bi3(Sr, Ba)4Ca3Oz was also found in addition to the high-Tc phase in a quenched sample. When BaCO3 was added to the synthesized high-Tc phase, Tc(R=0) was 119K for the heated samples. When BaCO3 was added in starting materials, Tc decreased to 110K due to the formation of Bi3(Sr, Ba)4Ca3OZ.

    DOI: 10.2497/jjspm.39.374

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  • Preparation of Fe3O4/MgO Artificial Superlattices by Activated Reactive Evaporation Method Reviewed

    Masakatsu Sakamoto, Mitsuhiro Asano, Tatsuo Fujii, Tokuro Nanba, Akiyoshi Osaka, Yoshinari Miura, Jun Takada

    journal of the japan society of powder and powder metallurgy   39 ( 11 )   985 - 988   1992

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  • Effect of Ba-addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System. (VI)

    Yoshihiro Kusano, Tokuro Nanba, Jun Takada, Naoya Kobayashi, Kazuhiro Yamaguchi, Minoru Fukuhara, Akira Doi, Toshio Takada, Yasunori Ikeda, Mikio Takano, Hiromasa Mazaki

    Journal of the Japan Society of Powder and Powder Metallurgy   39 ( 9 )   771 - 774   1992

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    The effects of Ba addition and grinding time on Tc of the high-Tc phase in the Bi-Pb-Sr-Ca-Cu-O system have been studied. Samples with compositions of Bi:Pb:Sr:Ba:Ca:Cu=0.9:0.2:1.0:X:1.0:1.6(X=0-0.05) were prepared by grinding the high-Tc phase and BaCO3 powders for various periods (20 to 120min). The high-Tc phase degraded with grinding time. In samples of a composition of X=0.05 heated at 845≥C for 60h in air, a small amount of the low-Tc phase and Bi3(Sr, Ba)4Ca3Oz besides the high-Tc phase were formed. The heating led to the grain growth of the high- Tc phase with increasing grinding time. However, Tc(R=0) was decreased due to the formation of the low-Tc phase and Bi3(Sr, Ba)4Ca3Oz.<BR>In a sample with X=0.05 heated at 850°C for 60h in air, only a solid solution of the high-Tc phase was formed. Tc(R=O)=125K was attained in this sample. The Meissner diamagnetic response at 125K was confirmed by SQUID, but the volume fraction of the 125K phase was estimated below 1%.

    DOI: 10.2497/jjspm.39.771

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  • Effect of Ba-addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O system Reviewed

    Masashi Fujiwara, Tokuro Nanba, Jun Takada, Zenji Hiroi, Yasunori Ikeda, Mikio Takano

    Journal of the Japan Society of Powder and Powder Metallurgy   38 ( 8 )   1039 - 1042   1991

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Presentations

  • ビスマス亜鉛ホウ酸塩ガラスの結晶化挙動解析

    岩井葵, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ガラスおよびフォトニクス材料討論会  2025.12.2 

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    Event date: 2025.12.2 - 2025.12.3

    Language:Japanese   Presentation type:Poster presentation  

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  • Pb-B-O 系原子間ポテンシャルの開発と結晶およびガラス構造の再現性評価

    (岡山大学)宮脇蘭, 崎田真一, 紅野安彦, 難波徳郎, (日揮)椋木 敦, 千葉 保, 菊池孝浩, (原子力環境整備促進・資金管理センター)大和田仁

    日本セラミックス協会ガラスおよびフォトニクス材料討論会  2025.12.2 

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    Event date: 2025.12.2 - 2025.12.3

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  • 密度汎関数理論計算による29SiNMR化学シフトの予測に関する研究

    西晃平, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2025.11.29 

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    Event date: 2025.11.29

    Language:Japanese   Presentation type:Poster presentation  

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  • 密度汎関数理論計算によるエネルギーおよび力場を再現するPb-B-O-I系原子間ポテンシャルの導出

    藤原祥, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2025.11.29 

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    Event date: 2025.11.29

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  • CaO-Al2O3-SiO2系融体の高温物性制御

    松下颯太, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2025.11.29 

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    Event date: 2025.11.29

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  • 塩化溶融法による土壌中の有害元素の選択的分離回収プロセスの開発

    三村優騎, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2025.11.29 

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    Event date: 2025.11.29

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  • 土壌中の有害元素の熱処理時の分配挙動に対するフッ化物添加効果

    梶原岳斗, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2025.11.29 

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    Event date: 2025.11.29

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  • Research on the Light Absorption Properties and Structural Characteristics of SiO2-B2O3-Na2O Solar Light Absorbing Glass

    Kadiding Abulikemu, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba

    2025.11.29 

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    Event date: 2025.11.29

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  • メタリン酸塩ガラスの延伸処理に伴う物性や構造の異方性発現に関する研究

    豊田修大, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2025.11.29 

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    Event date: 2025.11.29

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  • Distribution Behavior of Hazardous Elements in Soils During Chlorination Heat- Treatment

    Yuki Mimura, Shinichi Sakida, Yasuhko Benino, Tokuro Nanba

    The 39th International Korea-Japan Seminar on Ceramics  2025.11.21 

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    Event date: 2025.11.20 - 2025.11.21

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  • Chlorination Volatilization Behavior of Heavy Metal Ions in Soils

    Toa Shikama, Yuki Mimura, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba

    The 39th International Korea-Japan Seminar on Ceramics  2025.11.20 

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    Event date: 2025.11.20 - 2025.11.21

    Language:English   Presentation type:Oral presentation (general)  

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  • Development of Interatomic Potential for Pb-B-O System and Evaluation of Structural Reproducibility in Crystalline and Glass Structures

    (Okayama University) Ran Miyawaki, Yasuhiko Benino, Tokuro Nanba, Shinichi Sakida, (JGC Japan Corporatio) Atsushi Mukunoki, Tamotsu Chiba, Takahiro Kikuchi, (Radioactive, Waste Management Funding, Research Center) Hitoshi Owada

    The 39th International Korea-Japan Seminar on Ceramics  2025.11.20 

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    Event date: 2025.11.20 - 2025.11.21

    Language:English   Presentation type:Oral presentation (general)  

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  • Pb-B-O系原子間ポテンシャルの開発と構造再現性評価

    宮脇蘭, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会年会  2025.3.5 

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    Event date: 2025.3.5 - 2025.3.7

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  • 放射性ヨウ素固定化ガラス及び関連ガラスの構造モデルの評価

    宮脇蘭, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2024.12.7 

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    Event date: 2024.12.7

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  • Pb-B-O-X 系結晶(X=Cl, Br, I)の密度汎関数理論計算と原子間ポテンシャル導出

    藤原祥, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2024.12.7 

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    Event date: 2024.12.7

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  • Bi2O3-ZnO-B2O3 系ガラスの結晶化挙動と形態制御

    岩井葵, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2024.12.7 

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    Event date: 2024.12.7

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  • 塩化揮発法による元素の揮発挙動

    永田佳乃子, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2024.12.7 

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    Event date: 2024.12.7

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  • 都市ごみ溶融スラグのリサイクルプロセスの開発

    溝口昂毅, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2024.12.7 

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    Event date: 2024.12.7

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  • Structural Modeling of Bismuth-Based Glasses by Using Density Functional Theory and Molecular Dynamics Simulations

    Luo YANG, Yasuhiko BENINO, Tokuro NANBA, Shinichi SAKIDA

    The 28th International Japan-Korea Seminar on Ceramics  2024.11.1 

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    Event date: 2024.11.1 - 2024.11.2

    Language:English   Presentation type:Oral presentation (general)  

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  • 点滴濾紙法によるスズリン酸塩系ガラスの組成分析と溶融時の組成ずれに関する研究

    米澤佑宇, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会秋季シンポジウム  2024.9.12 

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    Event date: 2024.9.10 - 2024.9.12

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 結合原子価および原子間ポテンシャルを用いた鉛ホウ酸塩系ガラスの逆モンテカルロ法構造モデル化と局所構造評価

    長尾 正昭, 崎田 真一, 紅野 安彦, 難波 徳郎

    日本セラミックス協会年会  2024.3.15 

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    Event date: 2024.3.14 - 2024.3.16

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • ガラスの性質を利用したリサイクル,無害化処理プロセスの開発 Invited

    難波 徳郎

    日本セラミックス協会年会  2024.3.15 

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    Event date: 2024.3.14 - 2024.3.16

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

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  • 塩化揮発法による土壌中の重金属元素(Pb, Cd, Cr)の揮発挙動

    鹿間 斗亜, 難波 徳郎, 紅野 安彦

    日本セラミックス協会基礎科学討論会  2024.1.7 

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    Event date: 2024.1.7 - 2024.1.8

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 密度汎関数理論計算と古典力場計算に基づくPbO 含有系の原子間ポテンシャルの最適化

    長尾 正昭, 崎田 真一, 紅野 安彦, 難波 徳郎

    日本セラミックス協会ガラスおよびフォトニクス材料討論会  2023.11.28 

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    Event date: 2023.11.27 - 2023.11.28

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 脱リンスラグの還元溶融に伴う構成元素の分配挙動

    藤本ほのか, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2023.11.25 

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    Event date: 2023.11.25

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  • ガラスの構造再現に適用可能な原子間ポテンシャルの開発

    宮脇蘭, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2023.11.25 

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    Event date: 2023.11.25

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  • Distribution behavior of elements during high temperature melting of halide added soils

    LI HAO, S. Sakida, Y. Benino, T. Nanba

    2023.11.25 

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    Event date: 2023.11.25

    Language:English   Presentation type:Poster presentation  

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  • Optimization of interatomic potentials used in molecular dynamics simulation of bismuth containing glasses

    Luo Yang, Shinichi Sakida, Yasuhiko Benino, Tokuro Nanba

    2023.11.25 

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    Event date: 2023.11.25

    Language:English   Presentation type:Poster presentation  

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  • 点滴濾紙法を用いたガラスの組成分析と組成ずれに関する基礎的研究

    米澤佑宇, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2023.11.25 

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    Event date: 2023.11.25

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  • ホウ酸塩系ガラスの構造情報と機械学習に基づく特性予測

    藤原隆稀, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2023.11.25 

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    Event date: 2023.11.25

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  • ビスマス系ガラスの結晶化機構解析

    岩井葵, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2023.11.25 

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    Event date: 2023.11.25

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  • 都市ごみ溶融スラグのリサイクルプロセスの開発

    溝口昂毅, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2023.11.25 

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    Event date: 2023.11.25

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  • ガラスの延伸処理に伴う異方性の発現と構造変化

    瀬尾直幹, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2023.11.25 

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    Event date: 2023.11.25

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  • Fe2O3 P2O5系を含む種々のリン酸塩系ガラスの化学結合状態

    芝田人夢, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会ヤングセラミストミーティングin中四国  2023.11.25 

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    Event date: 2023.11.25

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  • Optimization of interatomic potential parameters for molecular dynamics simulations of glasses containing heavy metal oxides via physically informed fitting

    Luo Yang, KONDOU Tomonari, NAGAO Masaaki, SAKIDA Shinichi, BENINO Yasuhiko, NANBA Tokuro

    The 37th the International Korea-Japan Seminar on ceramics  2023.11.16 

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    Event date: 2023.11.15 - 2023.11.17

    Language:English   Presentation type:Poster presentation  

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  • Optimization of interatomic potentials for classical molecular dynamics simulations of PbO-containing systems based on cooperative calculations with first principles density functional theory

    Masaaki NAGAO, Shinichi SAKIDA, Yasuhiko BENINO, Tokuro NANBA

    The 37th the International Korea-Japan Seminar on ceramics  2023.11.16 

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    Event date: 2023.11.15 - 2023.11.17

    Language:English   Presentation type:Oral presentation (general)  

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  • 鉛ホウ酸塩の多様な局所構造に関する化学結合状態評価

    (岡山大学)長尾正昭・崎田真一・紅野安彦・難波徳郎・(日揮)椋木 敦・千葉 保・菊池孝浩・(原子力環境整備促進・資金管理センター)桜木智史・大和田 仁

    日本セラミックス協会年会  2023.3.9 

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    Event date: 2023.3.8 - 2023.3.10

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 都市ゴミ溶融スラグ構成元素の酸への溶出挙動

    上田 和昌, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会基礎科学討論会  2023.1.7 

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    Event date: 2023.1.7 - 2023.1.8

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 塩化揮発法による土壌中のセシウムの揮発挙動の解明

    藤堂元喜, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会基礎科学討論会  2023.1.7 

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    Event date: 2023.1.7 - 2023.1.8

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • B2O3を含むガラスの構造情報と機械学習に基づく特性予測

    三輪晃涼, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会基礎科学討論会  2023.1.7 

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    Event date: 2023.1.7 - 2023.1.8

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • ガラスの相分離に伴うフッ素の分配挙動

    國末拓希, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会基礎科学討論会  2023.1.7 

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    Event date: 2023.1.7 - 2023.1.8

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 分子軌道計算による種々のリン酸塩の化学結合状態の解析

    安西 央行, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会基礎科学討論会  2023.1.7 

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    Event date: 2023.1.7 - 2023.1.8

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 下水処理汚泥焼却灰の還元溶融に伴う構成元素の分配挙動

    木村 直哉, 崎田真一, 紅野安彦, 難波徳郎

    日本セラミックス協会基礎科学討論会  2023.1.7 

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    Event date: 2023.1.7 - 2023.1.8

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  • リン酸カルシウム系ガラスにおける異方性誘起過程の分子動力学構造モデル化

    セラミックス基礎科学討論会  2018 

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  • 圧縮変形させたリン酸塩ガラスの異方性評価

    セラミックス基礎科学討論会  2018 

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  • SnO-P2O5系ガラスの構造解析

    ヤングセラミストミーティングin中四国  2017 

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  • 溶融法によるセシウム汚染土壌処理における揮発挙動

    ヤングセラミストミーティングin中四国  2017 

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  • 液晶ガラスのリサイクル手法の確立

    ヤングセラミストミーティングin中四国  2017 

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  • ホウ酸塩系ガラスの塩基度評価とガラス構造との相関解明

    ヤングセラミストミーティングin中四国  2017 

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  • 次世代型リチウムイオン電池の充放電に伴う活物質の構造変化

    ヤングセラミストミーティングin中四国  2017 

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  • 都市ゴミ溶融スラグの構成元素の溶出挙動

    ヤングセラミストミーティングin中四国  2017 

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  • 伸長・圧縮処理による異方性ガラスの作製

    ヤングセラミストミーティングin中四国  2017 

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  • 還元溶融時における脱リンスラグの構成元素の分配挙動

    日本セラミックス協会秋季シンポジウム  2017 

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  • リン酸塩ガラスの圧縮変形による力学的異方性

    日本セラミックス協会年会  2017 

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  • BPIガラス固化体の分子動力学シミュレーションを用いた構造解析

    セラミックス基礎科学討論会  2017 

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  • 土壌中のセシウムの揮発挙動に対する支配因子の探索

    セラミックス基礎科学討論会  2017 

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  • 高温溶融法により調製されたスラグの構成元素の溶出挙動

    日本セラミックス協会秋季シンポジウム  2017 

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  • 溶融雰囲気の調整によるSnOx-ZnO-P2O5ガラスの作製と評価

    日本セラミックス協会秋季シンポジウム  2017 

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  • スパッタ法で製膜された酸化ニオブ薄膜の作製条件が電気化学的・光電気化学的特性に与える影響

    日本セラミックス協会秋季シンポジウム  2017 

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  • X 線異常散乱法による2成分系テルライトガラスの構造解析

    日本セラミックス協会秋季シンポジウム  2017 

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  • SnO-ZnO-P2O5系ガラスの構造と発光特性

    セラミックス基礎科学討論会  2017 

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  • 置換元素を含む2-lineフェリハイドライトの非晶質構造解析

    日本セラミックス協会秋季シンポジウム  2017 

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  • アルミノホウ酸塩系ガラスの4配位ホウ素生成の支配因子

    ヤングセラミストミーティングin中四国  2016 

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  • SnO-P2O5系ガラスの構造解析

    ヤングセラミストミーティングin中四国  2016 

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  • 都市ごみ溶融スラグの構成元素出挙動

    ヤングセラミストミーティングin中四国  2016 

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  • 金属電極貫入に伴うガラスの結晶化

    日本セラミックス協会年会  2016 

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  • カルシウムリン酸塩系伸長ガラスの分子動力学構造モデル化

    日本セラミックス協会年会  2016 

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  • 新たな塩基度評価手法の開発

    ヤングセラミストミーティングin中四国  2016 

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  • 還元溶融時における脱リンスラグの構成元素の分配挙動

    日本セラミックス協会秋季シンポジウム  2016 

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  • SnO ドープZnO-P2O5 系ガラスの発光特性

    日本セラミックス協会秋季シンポジウム  2016 

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  • X 線異常散乱によるテルライトガラスの構造解析

    日本セラミックス協会秋季シンポジウム  2016 

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  • 異方性ガラスの作製と評価

    ヤングセラミストミーティングin中四国  2016 

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  • 液晶ガラスのリサイクル手法の開発

    ヤングセラミストミーティングin中四国  2016 

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  • リチウムイオン電池の充放電に伴う非晶質フェハドライトの構造変化

    ヤングセラミストミーティングin中四国  2016 

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  • ガス化溶融法により調製されたスラグの構成元素の溶出挙動に関する研究

    日本セラミックス協会年会  2016 

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  • Ag+ ‒ Na+電界イオン交換によりテルライトガラス中に生成する銀微粒子の状態

    セラミックス基礎科学討論会  2016 

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  • 都市ごみ溶融スラグの構成元素の溶出挙動調査

    セラミックス基礎科学討論会  2016 

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  • Exploration of the dominant factor for the volatile behavior of cesium

    The Ceramic Society of Japan The Fall Meeting  2015 

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  • Dissolution Behavior of Glasses Prepared from Municipal Waste Slag

    Annual Meeting of International Congress of Glass  2015 

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  • Structure and properties of heavy metal oxide glasses

    The Ceramic Society of Japan The Fall Meeting  2015 

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  • Structural analysis of amorphous NbOx thin films

    The Ceramic Society of Japan The Fall Meeting  2015 

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  • Interatomic potential used for structural simulation of radioactive iodine waste form BPI glass

    The Ceramic Society of Japan The Fall Meeting  2015 

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  • XPS and DFT Studies on the Electronic Structure of Niobium Oxide Polymorphs

    The 11th International Conference of Pacific Rim Ceramic Societies (PacRim-11)  2015 

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  • Structural analysis of tin phosphate glasses by synchrotron radiation

    Annual Meeting of International Congress of Glass  2015 

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  • 非晶質NbOx 薄膜の構造解析

    日本セラミックス協会秋季シンポジウム  2015 

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  • 異方性伸長ガラスの分子動力学構造モデルと構造解析実験との対比

    日本セラミックス協会秋季シンポジウム  2015 

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  • Anisotropic Structure of Metaphosphate Drawn Glass by Molecular Dynamics Simulation

    Annual Meeting of International Congress of Glass  2015 

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  • Dissolution Behavior of Glasses Prepared from Municipal Waste Slag

    Annual Meeting of International Congress of Glass  2015 

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  • セシウムの揮発挙動に対する支配因子の探索

    日本セラミックス協会秋季シンポジウム  2015 

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  • 重金属酸化物ガラスの構造と物性

    日本セラミックス協会秋季シンポジウム  2015 

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  • 還元溶融法による再資源化物からのリン回収プロセスの開発

    ヤングセラミストミーティングin中四国  2015 

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  • X 線異常散乱によるテルライトガラスの構造解析

    ヤングセラミストミーティングin中四国  2015 

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  • 金属電極貫入に伴うガラスの結晶化挙動

    ガラスおよびフォトニクス材料討論会  2015 

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  • BPI ガラス固化体の構造再現に用いる原子間ポテンシャルの構築

    日本セラミックス協会秋季シンポジウム  2015 

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  • Anisotropic Structure of Metaphosphate Drawn Glass by Molecular Dynamics Simulation

    Annual Meeting of International Congress of Glass  2015 

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  • 還元溶融法による再資源化物構成元素の分配挙動

    セラミックス基礎科学討論会  2015 

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  • 都市ごみ溶融スラグの構成元素の溶出挙動

    セラミックス基礎科学討論会  2015 

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  • 都市ごみ溶融スラグからの元素回収プロセスと機能付与

    セラミックス基礎科学討論会  2015 

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  • Structural analysis of tin phosphate glasses by synchrotron radiation

    Annual Meeting of International Congress of Glass  2015 

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  • XPS and DFT Studies on the Electronic Structure of Niobium Oxide Polymorphs

    The 11th International Conference of Pacific Rim Ceramic Societies (PacRim-11)  2015 

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  • バイオ酸化鉄と類似した構造を有するSi およびP 置換酸化鉄の構造決定

    日本セラミックス協会年会  2015 

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  • Ag+-Na+電界イオン交換によりテルライトガラス中に生成する銀微粒子の状態

    日本セラミックス協会年会  2015 

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  • Structural study of inhomogeneous structure in bismuth zinc borate glasses

    セラミックス基礎科学討論会  2015 

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  • バイオ酸化鉄の構造再現に用いる原子間ポテンシャルの構築に関する研究

    ヤングセラミストミーティングin中四国  2015 

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  • プローブイオンとXPS を用いたガラスの塩基度評価

    ヤングセラミストミーティングin中四国  2015 

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  • 異方性構造を有するガラス材料の物性測定と非晶質構造解析

    ヤングセラミストミーティングin中四国  2015 

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  • スズリン酸塩系ガラスの蛍光減衰

    ヤングセラミストミーティングin中四国  2015 

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  • ガス化溶融法により調製されたスラグの構成元素の溶出挙動に関する研究

    ヤングセラミストミーティングin中四国  2015 

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  • プラズマ放電焼結法を用いたBi 系新規蛍光体の作製

    日本セラミックス協会年会  2014 

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  • 還元溶融法による鉄鋼スラグ中の鉄の分離

    日本セラミックス協会年会  2014 

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  • MgO-Al2O3 系Cr フリー耐火物へのSiC 添加効果

    セラミックス基礎科学討論会  2014 

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  • ガラスの性質を利用した未利用資源の回収

    セラミックス基礎セミナー  2014 

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  • BPI ガラス固化体の構造再現に用いる原子間ポテンシャルの構築

    日本セラミックス協会年会  2014 

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  • ビスマス亜鉛ホウ酸塩ガラスの不均質構造の観察

    日本セラミックス協会年会  2014 

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  • プローブイオンを用いたガラスやグの塩基度評価

    ヤングセラミストミーティングin中四国  2014 

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  • 逆モンテカルロ法を用いたバイオ酸化鉄の構造決定

    ガラスおよびフォトニクス材料討論会  2014 

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  • Observation of inhomogeneous structure of bismuth zinc borate glasses

    The 7th International Symposium on Surface Science  2014 

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  • 鉄酸化細菌が作る鉄酸化物の構造解析と応用

    日本セラミックス協会秋季シンポジウム  2014 

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  • 溶融スラグと 耐火物材料の反応性評価

    ヤングセラミストミーティングin中四国  2014 

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  • スズリン酸塩系ガラスの作製と発光特性

    ヤングセラミストミーティングin中四国  2014 

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  • 分子動力学法によるメタリン酸塩伸長ガラスの異方性構造解析

    ガラスおよびフォトニクス材料討論会  2014 

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  • 鉛ホウ酸塩系ガラスの構造再現に用いる原子間ポテンシャルの構築

    ヤングセラミストミーティングin中四国  2014 

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  • ガラスへの金属ピン貫入に伴う歪形成過程のシミュレーション

    ヤングセラミストミーティングin中四国  2014 

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  • 汚染土壌の無害化処理プロセスに関わる基礎的研究

    ヤングセラミストミーティングin中四国  2014 

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  • アルカリホウ酸塩系ガラスの仮想温度と構造の関係性

    ガラスおよびフォトニクス材料討論会  2014 

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  • 鉛ホウ酸塩系ガラスの原子間ポテンシャルを利用したRMC構造の改良

    日本セラミックス協会秋季シンポジウム  2014 

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  • XPSおよびDFT計算による酸化ニオブ結晶多形の電子状態解析

    日本セラミックス協会秋季シンポジウム  2014 

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  • 放射光を用いたスズリン酸塩系ガラスの構造解析

    日本セラミックス協会秋季シンポジウム  2014 

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  • ガラスの分相促進剤として用いるホウ素の循環再利用プロセスの開発

    セラミックス基礎科学討論会  2013 

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  • Bi2O3-MO-B2O3(M=Zn,Ca,Sr)系ガラスの結晶化と非線形光学機能発現

    2013年会  2013 

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  • X線、中性子回折およびXAFSを用いた鉛ホウ酸塩系多成分ガラスの構造解析

    2013年会  2013 

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  • Na2O-CaO-B2O3-SiO2系ガラスの分相に伴う遷移金属元素の分配

    セラミックス基礎科学討論会  2013 

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  • 下水処理汚泥からのリンの回収プロセスの開発

    セラミックス基礎科学討論会  2013 

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  • スズリン酸塩系ガラスの蛍光特性、耐水性に及ぼす酸化物の添加効果

    2013年会  2013 

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  • スパッタリング法によるNbOx薄膜の作成と光学特性の評価

    2013年会  2013 

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  • 家庭ごみ溶融スラグのケミカルリサイクルプロセスにおけるスラグ構成成分の分配挙動

    2013年会(サテライト)  2013 

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  • 合成系BIOXの構造解析

    ヤングセラミストミーティングin中四国  2013 

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  • 化学量論結晶化ガラスの結晶化度評価と等温結晶化速度論

    2013年会  2013 

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  • SnO ・P2O5系ガラスの結晶化と熱的・学安定性

    ヤングセラミストミーティングin中四国  2013 

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  • 分子動力学法による伸長ガラスの異方性構造解析

    ガラスおよびフォトニクス材料討論会  2013 

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  • 分子軌道計算と光電子分光によるアモルファスNbOxの短距離構造の検討

    応用物理学会秋季学術講演会  2013 

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  • 分子軌道計算によるNbO6八面体の連結様式が電子状態に及ぼす影響評価

    応用物理学会春季学術講演会  2013 

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  • 分子軌道計算によるNbO6八面体の連結様式が電子状態に及ぼす影響評価

    2014年春季講演会  2013 

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  • PとTiの分離

    ヤングセラミストミーティングin中四国  2013 

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  • 電界イオン交換で生成する銀微粒子の状態

    ヤングセラミストミーティングin中四国  2013 

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  • ガラスの構造情報を用いた重回帰分析による特性予測

    ガラスおよびフォトニクス材料討論会  2013 

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  • 都市ごみ溶融スラグの構成元素の溶出挙動

    ガラスおよびフォトニクス材料討論会  2013 

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  • ホウ酸添加スラグと耐火物の反応性

    ヤングセラミストミーティングin中四国  2013 

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  • ホウケイ酸ガラスの分相制御と交番電場効果

    ヤングセラミストミーティングin中四国  2013 

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  • Nb2O5系結晶多形のDFT計算とバンド構造

    ヤングセラミストミーティングin中四国  2013 

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  • アモルファス酸化ニオブの光吸収特性と分子軌道計算による電子状態評価

    応用物理学会学術講演会  2012 

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  • Effect of Nb2O5 addition to SnO-P2O5 glass

    IUMRS-ICEM 2012  2012 

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  • Preparation and characterisation of optical waveguides of Er3+ doped tellurite glasses by field assisted Ag+ Na+ ion exchange

    Living Glass 2012  2012 

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  • Distribution behaviour of inorganic constituents in municipal waste slag due to phase separation of vitrified slag

    Living Glass 2012  2012 

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  • Surface crystallisation behaviour and non linear optical property of bismuth zinc borate glasses

    Living Glass 2012  2012 

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  • フレスノイト組成を有するガラスの高温X線回析を用いた結晶化過程の解析

    ヤングセラミストミーティングin中四国  2011 

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  • Phosphorus Recovery Process from Iron- and Steel-Making Slag

    Japan-Korea Ceramics Seminar  2011 

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  • Effect of TiO2 on the Distribution of Phosphorus due to Phase Separation of Borosilicate Glass

    Japan-Korea Ceramics Seminar  2011 

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  • Preparation and Properties of Tin Phosphate Glass

    Japan-Korea Ceramics Seminar  2011 

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  • 交番電場を利用したガラスの分相組織および分相組成の制御

    ヤングセラミストミーティングin中四国  2011 

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  • Phosphorus Recycling from Sewage Sludge

    Japan-Korea Ceramics Seminar  2011 

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  • Distribution Behavior of Inorganic Constituents in Municipal Waste Slags due to Phase Separation of Vitrified Slags

    Japan-Korea Ceramics Seminar  2011 

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  • Distribution of Transition Metal Ions Associated with Phase Separation in Na2O-CaO-B2O3-SiO2 Glass System

    Japan-Korea Ceramics Seminar  2011 

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  • Structural Investigation of Bismuth Borate Glasses Containing Halides

    Japan-Korea Ceramics Seminar  2011 

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  • Surface Crystallization Behavior of Bismuth Zinc Borate Glasses and Nonlinear Optical Property of Crystallized Glass-Ceramics

    Japan-Korea Ceramics Seminar  2011 

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  • ガラスの相分離現象を利用した無機系廃棄物のケミカルリサイクル

    日本セラミックス協会秋季シンポジウム  2011 

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  • スズリン酸塩系ガラスの作製および特性評価

    日本セラミックス協会秋季シンポジウム  2011 

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  • ガラスと分光法

    ガラス部会若手セミナー  2011 

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  • Phase separation of borosilicate glass containing phosphorus

    Pacrim9  2011 

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  • 高温X 線回折を用いたフレスノイト組成を有するガラスの結晶化過程の解析

    ガラスおよびフォトニクス材料討論会  2011 

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  • ガラスのXPS 構造情報のデータベース化および重回帰分析の利用

    ガラスおよびフォトニクス材料討論会  2011 

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  • ガラスの特性を利用した無機系廃棄物のケミカルリサイクル

    日本セラミックス協会秋季シンポジウム  2011 

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  • 超音波表面処理によるBi2O3-ZnO-B2O3系ガラスの結晶化制御

    日本セラミックス協会秋季シンポジウム  2011 

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  • Construction and Utilization of XPS Structural Data of Glasses

    Japan-Korea Ceramics Seminar  2011 

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  • 電界イオン交換法によるテルライトガラス光導波路の作製と特性評価

    ガラスおよびフォトニクス材料討論会  2011 

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  • 逆モンテカルロ法と分子動力学法を用いた重金属酸化物ガラスの構造モデル構築

    ヤングセラミストミーティングin中四国  2011 

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  • 電界イオン交換法による光導波路の作製と特性評価

    ヤングセラミストミーティングin中四国  2011 

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  • ボロシリケート系ガラスの構造予測に関する研究

    ヤングセラミストミーティングin中四国  2011 

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  • ハロゲン含有重金属酸化物ガラスの電子状態解析

    ヤングセラミストミーティングin中四国  2011 

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  • Bi系新規蛍光体の開発

    ヤングセラミストミーティングin中四国  2011 

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  • EDTAを用いた湿式ボールミル法による有価元素の回収

    ヤングセラミストミーティングin中四国  2011 

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  • MgO-Al2O3系耐火物への非酸化物添加効果

    ヤングセラミストミーティングin中四国  2011 

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  • 鉛代替ガラス

    ガラス科学技術研究会  2011 

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  • Functional and structural characterizations of fresnoite glass-ceramics oriented with UST technique

    Pacrim9  2011 

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  • Fabrication and characterization of Er3+-doped tellurite glass

    Pacrim9  2011 

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  • 耐火物の耐スラグ侵食性に及ぼす非酸化物添加効果

    セラミックス基礎科学討論会  2011 

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  • 重金属酸化物ガラスのMDシミュレーション

    セラミックス基礎科学討論会  2011 

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  • 微生物が作るバイオジナス酸化鉄のキャラクタリゼーション(第2 報)~放射光を用いたアモルファス構造解析~

    セラミックス基礎科学討論会  2011 

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  • フレスノイト表面結晶化における超音波表面処理の透明性と配向性への影響

    セラミックス基礎科学討論会  2011 

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  • 高配向フレスノイト結晶化ガラスの析出形態観察

    セラミックス基礎科学討論会  2011 

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  • ホウケイ酸塩ガラスの分相における添加したリンの分配挙動

    セラミックス基礎科学討論会  2011 

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  • Na2O-CaO-B2O3-SiO2系ガラスの分相に伴う遷移金属元素の分配

    日本セラミックス協会年会  2011 

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  • ビスマス亜鉛ホウ酸塩ガラスの結晶化と非線形光学機能発現

    日本セラミックス協会年会  2011 

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  • エレクトロクロミックWO3 薄膜の着退色特性と挿入イオンの分布状態

    セラミックス基礎科学討論会  2011 

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  • スズリン酸塩系ガラスの作製及び特性評価

    セラミックス基礎科学討論会  2011 

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  • Er3+ドープAg+-Na+電界イオン交換タングステンテルライトガラス光導波路の光学特性評価

    セラミックス基礎科学討論会  2011 

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  • Structural study of P2O5-SiO2 binary glasses before and after annealing by 29Si and 31P MAS NMR spectroscopy

    Korea-Japan International Seminar on Ceramics  2010 

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  • Structural analysis of bismuth zinc borate glasses using high energy X-ray diffraction and 11B MAS NMR measurements

    International Congress on Glasses  2010 

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  • Coloration and Depth Distribution of Cations Electrochemically-inserted into Electrochromic WO3 Thin Films

    International Conference of Ceramics  2010 

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  • Effect of Ultrasonic Surface Treatment on the Transparency and Orientation of Fresnoite Surface Crystallization

    International Conference of Ceramics  2010 

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  • Molecular Dynamics Simulation of Lead Borate and Related Glasses in Multicomponent Systems for Low Melting Vitrification of Nuclear Wastes

    International Conference of Ceramics  2010 

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  • Effect of Addition of Non-oxides on the Slag Corrosion Resistance of MgO-Al2O3 Refractories

    International Conference of Ceramics  2010 

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  • Fabrication and Characterization of Er3+-doped Tellurite Glass Waveguides by Ag+-Na+ Ion-exchange Method

    International Conference of Ceramics  2010 

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  • Phase separation of borosilicate glass containing phosphorus

    International Conference of Ceramics  2010 

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  • Structural Investigation Of Bismuth Borate Glasses Containing Halides

    International Conference of Ceramics  2010 

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  • ビスマスホウ酸塩系ガラスの構造解析

    基礎科学討論会  2010 

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  • 近赤外レーザー誘起によるDy3+含有ビスマス亜鉛ホウ酸塩ガラスの局所結晶化

    基礎科学討論会  2010 

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  • スズリン酸塩系ガラスの作製及び特性評価

    日本セラミックス協会ヤングセラミストミーティングin中四国  2010 

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  • Structural Investigation Of Bismuth Borate Glasses Containing Halides

    International Conference of Ceramics  2010 

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  • Structural study of P2O5-SiO2 binary glasses before and after annealing by 29Si and 31P MAS NMR spectroscopy

    Korea-Japan International Seminar on Ceramics  2010 

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  • Effect of Addition of Non-oxides on the Slag Corrosion Resistance of MgO-Al2O3 Refractories

    International Conference of Ceramics  2010 

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  • Fabrication and Characterization of Er3+-doped Tellurite Glass Waveguides by Ag+-Na+ Ion-exchange Method

    International Conference of Ceramics  2010 

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  • Phase separation of borosilicate glass containing phosphorus

    International Conference of Ceramics  2010 

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  • 高配向フレスノイト結晶化ガラスの析出形態観察

    日本セラミックス協会ヤングセラミストミーティングin中四国  2010 

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  • CaO-B2O3-SiO2系ガラスの分相に伴う添加成分の分配

    日本セラミックス協会ヤングセラミストミーティングin中四国  2010 

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  • アルカリ土類ビスマスホウ酸塩ガラスの結晶化と非線形光学機能発現

    日本セラミックス協会ヤングセラミストミーティングin中四国  2010 

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  • セラミックス材料の塩基度と反応性

    耐火物技術協会,精錬・鋳造用耐火物専門委員会  2010 

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  • Effect of Ultrasonic Surface Treatment on the Transparency and Orientation of Fresnoite Surface Crystallization

    International Conference of Ceramics  2010 

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  • 耐火物と溶融スラグの反応性に及ぼす塩基度の影響

    日本セラミックス協会年会  2010 

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  • 廃棄物の再資源化処理プロセスの開発

    基礎科学討論会  2010 

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  • エレクトロクロミックWO3薄膜の着退色特性と挿入イオンの分布状態

    基礎科学討論会  2010 

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  • 硫黄を含むガラスの分相と硫黄の挙動

    基礎科学討論会  2010 

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  • Molecular Dynamics Simulation of Lead Borate and Related Glasses in Multicomponent Systems for Low Melting Vitrification of Nuclear Wastes

    International Conference of Ceramics  2010 

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  • Structural analysis of bismuth zinc borate glasses using high energy X-ray diffraction and 11B MAS NMR measurements

    International Congress on Glasses  2010 

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  • 耐火物の耐スラグ侵食性に及ぼす非酸化物添加効果

    耐火物技術協会年次講演会  2010 

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  • Er3+ドープAg+-Na+イオン交換タングステンテルライトガラス光導波路の屈折率分布および伝播損失

    日本セラミックス協会年会  2010 

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  • Coloration and Depth Distribution of Cations Electrochemically-inserted into Electrochromic WO3 Thin Films

    International Conference of Ceramics  2010 

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  • ステンレス成分が廃棄物からのSiO2回収に与える影響の評価

    日本セラミックス協会ヤングセラミストミーティングin中四国  2010 

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  • セラミックス材料のX線光電子分光データベースの構築及び測定により求めた内殻準位の化学シフトの回帰分析

    日本セラミックス協会ヤングセラミストミーティングin中四国  2010 

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  • 逆モンテカルロ法による重元素含有ホウ酸塩ガラスのモデル構築

    日本セラミックス協会ヤングセラミストミーティングin中四国  2010 

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  • ホウ素の循環再利用プロセスの開発

    日本セラミックス協会ヤングセラミストミーティングin中四国  2010 

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  • 湿式ボールミル法による希土類含有廃棄物からの希土類元素の回収

    日本セラミックス協会ヤングセラミストミーティングin中四国  2010 

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  • 下水処理汚泥からのリンの回収プロセス

    日本セラミックス協会ヤングセラミストミーティングin中四国  2010 

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  • 低融点ビスマスボレートガラスの構造解析

    日本セラミックス協会年会  2009 

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  • ビスマスホウ酸塩系ガラスの構造解析と分相挙動との関連

    ガラスおよびフォトニクス材料討論会  2009 

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  • 硫黄を含むガラスの分相と硫黄の挙動

    日本セラミックス協会年会  2009 

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  • WO3薄膜へ電気化学的に挿入されたイオンの分布状態

    日本セラミックス協会年会  2009 

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  • 耐火物と溶融スラグの反応性に及ぼす塩基度の影響

    日本セラミックス協会年会  2009 

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  • 産業廃棄物の再資源化処理プロセスの開発

    日本セラミックス協会年会  2009 

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  • 高度配向したフレスノイト結晶化ガラスの透明性向上と機能評価

    秋季シンポジウム  2009 

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  • 耐火物の耐スラグ侵食性に及ぼす非酸化物の添加効果

    秋季シンポジウム  2009 

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  • 近赤外レーザー誘起によるDy3+含有ビスマス亜鉛ホウ酸塩ガラスの局所結晶化

    日本セラミックス協会年会  2009 

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  • 鉄鋼スラグからのリンのリサイクル

    ヤングセラミストミーティングin中四国  2009 

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  • ホウケイ酸塩系ガラスの分相におけるリンの分配挙動

    ヤングセラミストミーティングin中四国  2009 

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  • 配向したフレスノイト結晶化ガラスの酸溶解と針状単結晶の単離

    ヤングセラミストミーティングin中四国  2009 

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  • 湿式ボールミルによる産業廃棄物からの有価元素の回収

    ヤングセラミストミーティングin中四国  2009 

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  • ホウ素の循環再利用プロセスの開発

    ヤングセラミストミーティングin中四国  2009 

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  • 純テルライトおよび低アルカリテルライトガラスの特異な結晶化挙動の観察

    ヤングセラミストミーティングin中四国  2009 

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  • 重金属系ガラス中のハロゲンの存在状態とダイナミックス

    ヤングセラミストミーティングin中四国  2009 

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  • 硫黄を含むガラスの分相と硫黄の挙動

    西日本大会  2009 

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  • 種々のセラミックス材料の電子状態と離型性

    ヤングセラミストミーティングin中四国  2009 

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  • 無機系廃棄物の再資源化技術の開発

    日本セラミックス協会年会  2008 

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  • バルク状高配向表面結晶化ガラスの析出形態制御と機能発現

    日本セラミックス協会年会  2008 

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  • 分子軌道計算によるSi NMR化学シフトに対するホウ素の影響評価

    日本セラミックス協会年会  2008 

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  • 酸化物ガラス中のEr3+イオンの光学特性とガラスの塩基度との相関

    The 18th Meeting on Glasses for Photonics  2008 

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  • Si NMR 化学シフトに対するホウ素の影響評価

    日本セラミックス協会基礎科学討論会  2008 

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  • 耐火物の反応性に及ぼす塩基度の影響

    日本セラミックス協会年会  2008 

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  • 耐火物の反応に及ぼす塩基度の影響

    日本セラミックス協会秋季シンポジウム  2008 

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  • Molecular orbital calculation of 29Si NMR chemical shift in borosilicates --- the effect of boron coordination to SiO4 unit ---

    Borate Conference 2008  2008 

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  • Correlation between basicity and coordination structure in borosilicate glasses

    Borate Conference 2008  2008 

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  • ガラスにおける化学結合状態と塩基度

    日本セラミックス協会ガラス部会若手セミナー  2008 

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  • Effect of basicity on the reactivity of refractories

    6th International Conference on Inorganic Materials  2008 

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  • Effect of basicity on the structure of aluminoborate glasses

    6th International Conference on Inorganic Materials  2008 

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  • Fabrication and Characterization Of Er3+-doped Tellurite Glass Waveguides By Ag+-Na+ Ion-exchange Method

    6th International Conference on Inorganic Materials  2008 

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  • 一般廃棄物のケミカルリサイクル

    日本セラミックス協会秋季シンポジウム  2008 

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  • 一般廃棄物高温焼却炉用クロムフリー耐火物の開発

    耐火物技術協会年次学術講演会  2008 

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  • 無機系廃棄物の再資源化技術の開発

    日本セラミックス協会基礎科学討論会  2008 

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  • Crフリーレンガの開発(耐スラグ浸食性に対する非酸化物添加効果)

    日本セラミックス協会中国四国支部ヤングセラミストミーティング  2008 

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  • 湿式ボールミルによる廃棄物のリサイクル法の開発

    日本セラミックス協会中国四国支部ヤングセラミストミーティング  2008 

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  • ホウ素の循環再利用プロセスの開発

    日本セラミックス協会中国四国支部ヤングセラミストミーティング  2008 

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  • WO3エレクトロクロミック(EC)薄膜の着退色機構の解明

    日本セラミックス協会中国四国支部ヤングセラミストミーティング  2008 

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  • イオン交換に伴うガラスの構造変化の解析

    日本セラミックス協会中国四国支部ヤングセラミストミーティング  2008 

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  • レーザー集光局所加熱を利用したガラス表面への異質相パターニング

    日本セラミックス協会中国四国支部ヤングセラミストミーティング  2008 

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  • ZnO含有低融点ガラスの構造解析とガラス中のハロゲンの存在状態の解明

    日本セラミックス協会中国四国支部ヤングセラミストミーティング  2008 

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  • Er3+ドープAg+-Na+イオン交換タングステンテルライトガラス導波路の屈折率分布および伝搬損失

    日本セラミックス協会ガラス部会ガラス討論会  2008 

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  • アルミノボロシリケートガラスの構造に及ぼす塩基度の影響

    日本セラミックス協会ガラス部会ガラス討論会  2008 

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  • Behavior of sulfur associated with phase separation of glass in Na2S-B2O3-SiO2 system

    6th International Conference on Inorganic Materials  2008 

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  • バルク状高配向透明結晶化ガラスの開発

    日本セラミックス協会中国四国支部ヤングセラミストミーティング  2008 

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  • 酸化物ガラス中のEr3+イオンの光学特性とガラスの塩基度との相関

    ヤングセラミストミーティングin中国四国  2007 

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  • 産業廃棄物の再資源化処理プロセスの開発

    ヤングセラミストミーティングin中国四国  2007 

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  • 耐火物の反応性に及す塩基度の影響

    ヤングセラミストミーティングin中国四国  2007 

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  • 29Si及び31P MAS NMR 分光法によるアニール前後のP2O5-SiO2 二成分系ガラスの構造解析

    ガラスおよびフォトニクス材料討論会  2007 

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  • バルク状高配向表面結晶化ガラスの析出形態制御と機能発現

    ヤングセラミストミーティングin中国四国  2007 

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  • 硫黄を含むガラスの分相と硫黄の挙動

    ヤングセラミストミーティングin中国四国  2007 

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  • 陶磁器用鉛フリーガラスの開発

    ヤングセラミストミーティングin中国四国  2007 

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  • ガラスの分相を利用した都市ゴミ溶融スラグのマテリアルサイクル

    ヤングセラミストミーティングin中国四国  2007 

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  • ガラス構造の予測手法の開発-塩基度がガラス構造に及ぼす影響評価-

    ヤングセラミストミーティングin中国四国  2007 

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  • 都市ゴミ焼却灰と溶融スラグの再資源化処理プロセスの開発

    ヤングセラミストミーティングin中国四国  2007 

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  • ガラスの相分離を利用した廃棄物の新規リサイクル法

    日本セラミックス協会秋季シンポジウム  2007 

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  • ガラスの相分離を利用した廃棄物のマテリアルリサイクル

    日本セラミックス協会中国四国支部 第2回 産学官研究マッチング  2007 

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  • 都市ゴミ溶融スラグのマテリアルリサイクル

    日本化学会西日本大会  2007 

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  • ガラス構造の予測手法の開発-塩基度がガラス構造に及ぼす影響評価-

    日本化学会西日本大会  2007 

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  • Ag+-Na+イオン交換法によるEr3+含有タングステンテルライトガラス光導波路の作製および特性評価

    日本化学会西日本大会  2007 

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  • 酸化物ガラス中のEr3+イオンの光学特性とガラスの塩基度との相関

    日本化学会西日本大会  2007 

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  • Ag+-Na+イオン交換法によるEr3+含有テルライトガラス光導波路の作製及び特性評価

    ガラスおよびフォトニクス材料討論会  2007 

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  • アルミノボレートガラスの構造に及ぼす塩基度の影響

    ガラスおよびフォトニクス材料討論会  2007 

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  • Studies on the Characterization of Sulfur and Coloration in Borosilicate Glasses

    Pacrim7  2007 

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  • 分子軌道計算による29Si NMR 化学シフトの定量的評価

    日本化学会西日本大会  2007 

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  • イオン交換に伴う構造変化の解析

    ヤングセラミストミーティングin中国四国  2007 

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  • Ag+-Na+イオン交換法によるEr3+ドープテルライトガラス光導波路の作製および特性評価

    ヤングセラミストミーティングin中国四国  2007 

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  • 分子軌道計算による29SiNMR 化学シフトの定量的評価

    ヤングセラミストミーティングin中国四国  2007 

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  • 応力場変調による光非線形変調構造の形成

    ヤングセラミストミーティングin中国四国  2007 

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  • MAS NMR分光法によるアニール前後のP2O5-SiO2 二成分系ガラスの構造解析

    日本セラミックス協会年会  2007 

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  • New recycling method of industrial and nonindustrial waste slags using phase separation of glass

    International Congress on Glass XXI  2007 

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  • ボロシリケートガラスの構造に及ぼす塩基度の影響

    日本セラミックス協会年会  2007 

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  • Ab-initio calculation of 17O NMR parameters of various oxygen sites in borosilicate glasses

    International Congress on Glass XXI  2007 

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  • ボロシリケートガラス中トライクラスター酸素の17ONMR パラメータ解析

    日本セラミックス協会基礎科学討論会  2007 

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  • TiO2 含有酸化物ガラスの構造解析

    日本セラミックス協会基礎科学討論会  2007 

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  • 廃棄物溶融炉用耐火物の断熱性に及ぼす組成と組織の影響

    日本セラミックス協会,年会,サテライトプログラム  2006 

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  • テルライト系ガラスの屈折率の組成依存性

    日本セラミックス協会,基礎科学討論会  2006 

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  • 分子軌道計算によるボロシリケートガラスの17O NMRパラメーターの解析

    日本セラミックス協会,基礎科学討論会  2006 

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  • 2価カチオンを挿入した非晶質WO3薄膜のエレクトロクロミック特性

    日本セラミックス協会,基礎科学討論会  2006 

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  • 廃棄物溶融炉用MgO-Al2O3系の反応性に対する添加物の影響

    日本セラミックス協会,基礎科学討論会  2006 

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  • Influence of the Composition and Microstructure on Property of the Al2O3-Cr2O3 Refractory Materials

    1st International Congress On Ceramics  2006 

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  • 分子軌道計算によるリン酸塩ガラス化学結合状態の解析

    日本セラミックス協会中国四国支部ヤングセラミストミーティングin中国四国  2006 

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  • Regression Analysis on the Amount of Tetrahedral Boron in Borosilicate Glasses

    Materials Science & Technology 2006  2006 

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  • Correlation between the Basicity and Optical Property of Er3+ Ion in Oxide Glasses

    Materials Science & Technology 2006  2006 

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  • Recycling of Municipal Waste Slag Using Phase Separation of Glass

    Materials Science & Technology 2006  2006 

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  • 酸化物ガラス中のErイオンの光学特性と塩基度の相関

    日本セラミックス協会ガラスおよびフォトニクス材料討論会  2006 

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  • 酸化物ガラス中のEr3+イオンの光学物性とガラスマトリックスの塩基度との相関

    日本セラミックス協会中国四国支部ヤングセラミストミーティングin中国四国  2006 

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  • ボロシリケートガラス中トライクラスターの分子軌道計算

    日本セラミックス協会中国四国支部ヤングセラミストミーティングin中国四国  2006 

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  • TiO2含有酸化物ガラスの光学特性と構造解析

    日本セラミックス協会中国四国支部ヤングセラミストミーティングin中国四国  2006 

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  • 分子軌道計算によるリン酸塩ガラスの化学結合性の評価

    日本セラミックス協会ガラスおよびフォトニクス材料討論会  2006 

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  • Ab Initio Calculation of 17O NMR Parameter of Oxygen Sites in Borosilicate Glasses

    IMA2006  2006 

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  • Molecular Orbital Calculation on the Chemical Bonding Character of Phosphate Glasses

    Materials Science & Technology 2006  2006 

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  • Structure and Optical Properties of TiO2 Containing Oxide Glasses

    Materials Science & Technology 2006  2006 

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  • Ab Initio Calculation of 17O NMR Parameters of Tricluster Oxygen Sites in Borosilicate Glasses

    Materials Science & Technology 2006  2006 

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  • 一般廃棄物溶融スラグの新規リサイクル法

    日本セラミックス協会,秋季シンポジウム  2006 

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  • Ag+-Na+イオン交換法によるEr3+ドープテルライトガラス平面導波路の光学特性とイオン交換条件との関係

    日本セラミックス協会年会  2005 

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  • Ag+-Na+イオン交換法により作製したEr3+含有光導波ガラスの光学特性

    日本セラミックス協会基礎科学討論会  2005 

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  • Na2O-GeO2ガラスおよび結晶の化学結合状態

    日本セラミックス協会基礎科学討論会  2005 

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  • リン酸塩結合材を用いた耐火物用パッチング材の硬化機構の解明

    日本セラミックス協会年会  2005 

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  • ゾルゲル法により作製したAl2O3-Cr2O3の焼結性と化学的特性

    日本セラミックス協会年会  2005 

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  • 廃棄物溶融炉用MgO-Al2O3系スピネルの組成と作製法の検討

    日本セラミックス協会年会  2005 

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  • Tm含有重金属酸化物ガラスの光学特性

    日本セラミックス協会基礎科学討論会  2005 

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  • テルライト系ガラスの屈折率の組成依存性

    日本セラミックス協会年会  2005 

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  • TiO2含有酸化物ガラスの光学特性と構造解析

    日本セラミックス協会年会  2005 

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  • 分子軌道計算によるボロシリケートガラスの17O NMR 化学シフトの解析

    日本セラミックス協会年会  2005 

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  • ビスマス含有ガラスの構造と赤外発光特性

    日本セラミックス協会,ガラスおよびフォトニクス材料討論会  2005 

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  • Theoretical Interpretation of 17O NMR Spectra in Borosilicate Glasses

    Pacrim6  2005 

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  • Bi2O3-ZnO-Al2O3系ガラスの作製と透明着色結晶の形成

    日本セラミックス協会,ヤングセラミストミーティングin中四国  2005 

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  • Er3+ドープ酸化物ガラスの1.5μm帯発光幅とガラスマトリックスの塩基度との相関

    日本セラミックス協会,ヤングセラミストミーティングin中四国  2005 

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  • 重金属酸化物ガラス中の希土類イオンの発光特性

    日本セラミックス協会,ガラスおよびフォトニクス材料討論会  2005 

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  • Optical properties of waveguides of Er3+-doped tellurite glasses prepared by Ag+-Na+ ion-exchange

    Pacrim6  2005 

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  • Sintering and chemical properties of Al2O3-Cr2O3 ceramics prepared by sol-gel process

    Pacrim6  2005 

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  • Al2O3-Cr2O3系セラミックスの化学的特性

    日本材料学会,第117回セラミック材料部門委員会  2005 

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  • リン酸塩結合材を用いたパッチング耐火物の硬化機構

    日本材料学会,第117回セラミック材料部門委員会  2005 

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  • Coloration and bleaching phenomena of amorphous WO3 films due to the electrochemical insertion of divalent cations

    Pacrim6  2005 

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  • Optical properties of rare earth ions in heavy metal oxide glasses

    Pacrim6  2005 

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  • Optical Properties of Bi2O3-La2O3-Al2O3-B2O3 Glasses

    Pacrim6  2005 

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  • Compositional Dependence of Refractive Index in Tellurite Glasses

    Pacrim6  2005 

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  • Chemical Bonding Character of the Network Forming Bonds in Oxide Glasses

    Pacrim6  2005 

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  • Sr-Akermanite系ガラスセラミクスの残光特性

    日本セラミックス協会・基礎科学討論会  2004 

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  • イオン交換法による銀イオン含有光導波ガラスの作製

    日本セラミックス協会・基礎科学討論会  2004 

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  • アルカリホウ酸塩結晶の配位環境と電子状態

    日本セラミックス協会・基礎科学討論会  2004 

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  • 2価イオン挿入による非晶質WO3薄膜のエレクトロクロミック特性

    日本セラミックス協会・基礎科学討論会  2004 

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  • Bi2O3-GeO2-B2O3系ガラス及びガラスセラミックス中のCrイオンの光学特性

    日本セラミックス協会・基礎科学討論会  2004 

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  • Er3+ドープテルライトガラスのAg+-Na+イオン交換法による平面導波路の光学特性評価

    日本セラミックス協会,支部連合学術討論会  2004 

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  • ビスマス系酸化物ガラスの化学状態と光学特性

    日本材料学会, 第53期学術講演会  2004 

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  • ビスマス系酸化物ガラスの屈折率と分散

    日本材料学会, 第53期学術講演会  2004 

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  • 一般廃棄物焼却炉用クロムフリー耐火材料の開発

    日本セラミックス協会,支部連合学術討論会  2004 

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  • WO3エレクトロクロミック薄膜の作製

    日本セラミックス協会,ヤングセラミストミーティングin中四国  2004 

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  • Erドープ光ファイバーアンプの作製

    日本セラミックス協会,ヤングセラミストミーティングin中四国  2004 

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  • Cr2O3-Al2O3系焼結体の焼結性

    耐火物技術協会,連合研究発表会  2004 

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  • CATION DISTRIBUTION IN ALKALI AND ALKANINE-EARTH BOROSILICATE GLASSES

    XX International Congress on Glass  2004 

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  • 鉛代替ガラスとしてのTiO2含有ガラスの作製とその光学特性

    日本セラミックス協会,ヤングセラミストミーティングin中四国  2004 

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  • 重金属酸化物ガラス中のPr3+イオンの光学特性

    日本セラミックス協会,ヤングセラミストミーティングin中四国  2004 

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  • STRUCTURE OF Bi2O3-SiO2 GLASSES

    XX International Congress on Glass  2004 

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  • CHEMICAL BONDING CHARACTER OF ALUMINOSILICATE GLASSES

    XX International Congress on Glass  2004 

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  • テルライト系ガラスの屈折率の組成依存性

    日本セラミックス協会,支部連合学術討論会  2004 

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  • アルカリホウ酸塩結晶の配位環境と電子状態

    日本セラミックス協会・年会  2003 

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  • 重金属酸化物を含むガラス中の遷移金属イオン

    日本セラミックス協会・基礎科学討論会  2003 

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  • 長残光性透明ガラスセラミックスの作製

    日本セラミックス協会・基礎科学討論会  2003 

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  • アルカリ土類ホウ酸塩ガラスの化学結合状態

    日本セラミックス協会・年会  2003 

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  • Er含有重金属酸化物ガラスの光学特性

    日本セラミックス協会・年会  2003 

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  • Ag+-Na+イオン交換法で作成したEr3+ドープテルライトガラス光導波路の光学特性

    日本セラミックス協会・年会  2003 

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  • アルカリホウ珪酸塩ガラスの化学結合状態

    日本セラミックス協会・基礎科学討論会  2003 

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  • アルカリホウ酸塩結晶の配位環境と電子状態

    セラミックス協会・ヤングセラミストミーティングin中国四国  2003 

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  • Ag+-Na+イオン交換法によるEr3+ドープテルライトガラス光導波路作製およびその導波特性

    セラミックス協会・ガラスおよびフォトニクス材料討論会  2003 

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  • Molecular dynamic simulation on the structure of sodium germanate melts

    Pacrim5  2003 

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  • Defect structures in lithium bismuthate glass

    Pacrim5  2003 

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  • An interpretation of 11B and 29Si NMR spectra in alkali borosilicate glasses

    Goldschmidt 2003  2003 

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  • Er3+含有重金属酸化物ガラスの光学特性

    セラミックス協会・ヤングセラミストミーティングin中国四国  2003 

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  • GeO2系融体の分子動力学シミュレーション

    セラミックス協会・ガラスおよびフォトニクス材料討論会  2003 

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  • アルカリ土類ホウ珪酸塩ガラスの化学結合状態

    セラミックス協会・ガラスおよびフォトニクス材料討論会  2003 

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  • アルカリボロシリケートガラスのNMRスペクトル

    セラミックス協会・ガラスおよびフォトニクス材料討論会  2003 

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  • 電位差滴定法によるセラミック粉体の表面状態の評価

    日本セラミックス協会・支部連合学術講演会  2003 

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  • Changes in atomic and electronic structures of amorphous WO3 films due to electrochemical ion insertion

    3rd International Symposium on Transparent Oxide Thin Films for Electronics and Optics  2003 

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  • 分子動力学法によるアルカリゲルマン酸塩ガラスおよび融体の構造シミュレーション

    セラミックス協会・ヤングセラミストミーティングin中国四国  2003 

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  • 分子動力学シミュレーションによる三体ポテンシャルの効果

    日本セラミックス協会第40回基礎科学討論会  2002 

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  • 非晶質WO3薄膜への2価カチオンインターカレーションとその物性

    日本セラミックス協会第40回基礎科学討論会  2002 

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  • 長残光を示すガラスセラミックスの作製

    ヤングセラミストミーティング中国四国  2002 

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  • Spectral properties of erbium-doped HMO glasses for 1.5um broadband amplification

    ISPG2002  2002 

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  • アルカリホウ酸塩結晶の配位環境と電子状態

    DV-Xa研究会  2002 

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  • Electronic and atomistic structures of borosilicate glass

    Borate IV  2002 

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  • ビスマスシリケートガラスの構造と電子状態

    日本セラミックス協会年会  2002 

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  • ガラス及びガラスセラミックス中のCrイオンの光学特性

    ヤングセラミストミーティング中国四国  2002 

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  • ビスマスシリケートガラスの化学構造

    ガラス討論会  2002 

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  • アルカリ土類ホウケイ酸塩系ガラスの化学結合状態

    ヤングセラミストミーティング中国四国  2002 

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  • アルカリホウ酸塩結晶の配位環境と電子状態

    ヤングセラミストミーティング中国四国  2002 

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  • 紫外光照射によるZn2+添加GeO2-SiO2系非晶質薄膜の光化学反応

    日本セラミックス協会基礎科学討論会  2002 

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  • R2O-B2O3-SiO2 ガラスの化学結合状態

    日本セラミックス協会年会  2002 

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  • クロム含有重金属酸化物ガラスの光学特性

    日本セラミックス協会年会  2002 

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  • 紫外光照射によるZn2+添加GeO2-SiO2系非晶質薄膜の光化学反応

    日本セラミックス協会第40回基礎科学討論会  2002 

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  • アルカリ硼珪酸塩ガラスの化学構造

    日本セラミックス協会中国四国支部第8回ヤングセラミストミーティングin中四国  2001 

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  • Er3+添加重金属酸化物ガラスの光学特性

    日本セラミックス協会第42回ガラスおよびフォトニクス材料討論会  2001 

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  • アルカリ土類アルミノホウ酸塩ガラスの化学構造

    日本セラミックス協会第42回ガラスおよびフォトニクス材料討論会  2001 

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  • Bi系重金属酸化物ガラスの構造と特性

    日本セラミックス協会中国四国支部第8回ヤングセラミストミーティングin中四国  2001 

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  • Ti3+を用いたチューナブルガラスレーザーの開発

    日本セラミックス協会中国四国支部第8回ヤングセラミストミーティングin中四国  2001 

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  • ガラスマトリックス中の塩基度とクロムイオンの化学状態の相関性

    日本セラミックス協会中国四国支部第8回ヤングセラミストミーティングin中四国  2001 

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  • Changes in atomic and electronic structure of amorphous WO3 films due to electrochemical ion insertion

    Pacrim 4  2001 

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  • An interpretation in chemical shifts of core-level XPS signals in oxide glasses

    Pacrim 4  2001 

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  • アルカリホウ珪酸塩ガラスのX線光電子スペクトル

    日本セラミックス協会第39回基礎討論会  2001 

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  • 紫外光照射によるZn2+添加GeO2-SiO2系非晶質薄膜の光化学反応

    日本セラミックス協会基礎科学討論会  2001 

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  • 非晶質WO3薄膜へのZn2+イオンインターカレーションとその物性

    日本セラミックス協会支部連合学術講演会  2001 

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  • XPS and DV-Xa studies on the electronic structure of silicate glasses

    International Workshop on DV-Xa  2001 

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  • X-ray photoelectron spectroscopy of sodium borosilicate glasses

    ICG19  2001 

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  • ガラスセラミックス蛍光体における超音波処理効果

    日本セラミックス協会年会  2001 

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  • シリカ系ガラスへの高い光非線形性の付与

    日本セラミックス協会中国四国支部第7回ヤングセラミストミーティングin中四国  2000 

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  • WO3‐TeO2系ガラスの電子状態と光学物性

    日本セラミックス協会中国四国支部第7回ヤングセラミストミーティングin中四国  2000 

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  • TeO2-BiO1.5系ガラス中の希土類イオンの光学特性

    日本セラミックス協会第41回ガラスおよびフォトニクス材料討論会  2000 

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  • ゾル-ゲル法によるアルミナ-マグネシア系粉体の作製とその性質

    日本セラミックス協会中国四国支部第7回ヤングセラミストミーティングin中四国  2000 

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  • リチウム-ビスマス2成分系酸化物ガラスの構造と電子状態の関連について

    日本セラミックス協会第41回ガラスおよびフォトニクス材料討論会  2000 

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  • アルカリ土類アルミノホウ酸塩ガラスの化学構造

    日本セラミックス協会第13回秋季シンポジウム  2000 

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  • ガラスの表面結晶化によるSr2TiSi2O8膜の作製と光学特性

    日本セラミックス協会年会  2000 

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  • XPSによる重金属含有ガラスの電子状態解析

    日本セラミックス協会年会  2000 

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  • Bi2O3-B2O3系ガラスの構造と電子状態

    2000 

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  • ガラスの結晶化におけるマイクロ波照射効果

    日本セラミックス協会基礎科学討論会  2000 

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  • 分相ガラスにドープされた希土類イオンの発光特性

    日本セラミックス協会基礎科学討論会  2000 

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  • 希土類イオンドープ結晶化ガラスの光学特性

    日本セラミックス協会基礎科学討論会  2000 

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  • 非晶質WO3薄膜の構造と電子状態

    日本セラミックス協会基礎科学討論会  2000 

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  • WO3-TeO2系ガラスの電子状態

    日本セラミックス協会基礎科学討論会  2000 

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  • ほう酸ガラス中の硫黄の状態分析

    日本セラミックス協会年会  1999 

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  • リチウムビスマス系酸化物ガラスの構造について

    日本セラミックス協会年会  1999 

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  • ガラスの結晶化におけるマイクロ波照射効果

    日本セラミックス協会ヤングセラミストミーティングin中国四国  1999 

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  • XPSによるNa2O-B2O3-SiO2系ガラスの電子状態解析

    日本セラミックス協会ガラスおよびフォトニクス材料討論会  1999 

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  • リチウムビスマス系酸化物ガラスの構造解析

    日本セラミックス協会秋季シンポジウム  1999 

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  • Na2O-TiO2-SiO2系ガラスの局所構造

    日本セラミックス協会秋季シンポジウム  1999 

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  • 分相ガラス中にドープされた希土類イオンの発光特性

    日本セラミックス協会ヤングセラミストミーティングin中国四国  1999 

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  • 二成分系テルライトガラスの局所構造と電子状態

    日本セラミックス協会ガラスおよびフォトニクス材料討論会  1999 

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  • 硫黄含有ホウケイ酸ガラスの局所構造と電子状態

    日本セラミックス協会秋季シンポジウム  1999 

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  • X線光電子分光法及び分子軌道計算によるアルカリ珪酸塩ガラスの電子状態

    日本セラミックス協会秋季シンポジウム  1999 

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  • 分子動力学法によるホウ酸塩系ガラスの構造シミュレーション

    日本セラミックス協会秋季シンポジウム  1999 

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  • ZnO-B2O3-SiO2系ガラスのフォトクロミック特性

    日本セラミックス協会年会  1999 

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Awards

  • フェロー

    2021.6   日本セラミックス協会  

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  • 査読貢献賞

    2018.3   日本セラミックス協会  

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  • 耐火物技術協会若林賞

    2012  

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    Country:Japan

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  • 協会賞(学術賞)

    2011   日本セラミックス協会  

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    Country:Japan

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  • Award of the Outstanding Papers Published in the Journal of The Ceramic Society of Japan in 1998

    1999  

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    Country:Japan

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  • Young Scientists Award

    1995   Ceramic Society of Japan  

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    Country:Japan

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Research Projects

  • Study on Detoxification of Contaminated Soils Using Phase Separation by Halides Addition

    Grant number:22K05193  2022.04 - 2025.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    難波 徳郎, 紅野 安彦

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    Grant amount:\4160000 ( Direct expense: \3200000 、 Indirect expense:\960000 )

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  • Analysis of volatilization behavior of toxic elements during soil melting and development of guidelines for the selective removal processes

    Grant number:19K05565  2019.04 - 2022.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Nanba Tokuro

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    Grant amount:\4420000 ( Direct expense: \3400000 、 Indirect expense:\1020000 )

    The non-radioactive Cs2CO3, PbO, CdO, and Cr2O3 were added to a commercially-available soil and melted at high temperatures to prepare a simulated contaminated soil. The melting conditions (container shape, melting temperature, and types of fluxes and chlorides added) were systematically varied to investigate the volatilization behavior of each element. The results showed that the volatilization rate of each element was higher in vessels with larger openings and at higher melting temperatures. Chlorides of MgCl2 or CaCl2 showed the highest volatilization rates. In the case of Cs volatilization, the addition of the flux was effective, but in the case of heavy metal elements, the addition of no flux resulted in higher volatilization rates.

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  • Development of recovery process of valuable elements from inorganic sludges

    Grant number:23560992  2011 - 2013

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    NANBA Tokuro, BENINO Yasuhiko, SAKIDA Shinichi

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    Grant amount:\5460000 ( Direct expense: \4200000 、 Indirect expense:\1260000 )

    A large amount of phosphorus is contained in sewage sludge, and hence recovery of phosphorus from sewage sludge and recycling as phosphorous resources must be quite significant. This research group is working on the chemical recycling method of phosphorus contained in iron- and steel-making slags. Then, in the present project, the developing process has been applied to sewage sludge, and the possibility of phosphorus recovery from sewage sludge was examined. It was found that SiO2 addition was effective for the recovery of phosphorus, but the separation from the other constituents was quite difficult. It was finally suggested that melting under a reducing atmosphere was effective for the removal of ion, expecting the selective recovery of phosphorus.

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  • Development of Chromium-Free Refractories for High Temperature Incineration Furnace of Municipal Wastes

    Grant number:19310052  2007 - 2010

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    NANBA Tokuro, BENINO Yasuhiko, SAKIDA Shinichi

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    Grant amount:\18200000 ( Direct expense: \14000000 、 Indirect expense:\4200000 )

    In the present study, we have focused on the reactivity between refractories and slags as a dominant factor for the slag corrosion resistance of refractories. It was revealed that the difference in Ols binding energy measured with X-ray photoelectron spectroscopy (XPS) was effective to estimate the reactivity. In the choice of material added to the refractory, candidate materials are explored based on the Ols binding energy, and the number of the candidates should be reduced based on the viscosity change after the reaction with slags.

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  • Synthesis of the comparative research on the pre-modern technology based on the scientific research of excavated materials in archaeological sites connected to production

    Grant number:14023115  2002 - 2005

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Priority Areas

    MURAKAMI Ryu, TAKADA Jun, NAMBA Tokuro, KUSANO Yoshihiro

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    Grant amount:\48900000 ( Direct expense: \48900000 )

    This scientific research, focusing on the real objects excavated in the archaeological sites concerning to the production, will complement mutually the usual research on historical documents and inherited objects and contributes to integrate the comprehension to the technology in the Japanese pre-modern times. This research mainly treated metals and metal objects especially ; because metals are representative materials to support the evolution of human being and can provide the viewpoint to see the history perspectively. It aims at the reevaluation of pre-modern technology in Japan, through the vicissitudes of metal technology from the ancient times to the modern times. The scientific research in the Iwami silver mine site is one of examples, in which the silver smelting processes were scientifically revealed by a chain of analyses of excavated objects. Moreover, about pottery, "pottery glaze study group" was started and the materials science-analysis of glaze and the relation of color have been pursued. The formation process of Hidasuki, a characteristic reddish coloring pattern on traditional Japanese unglazed stoneware called Bizen, was studied through model experiments. As the results of researches, the many public presentations were performed. Especially, symposium "history of "monozukuri(the production)" probed through the archaeological sites connected with production" has been held in series.

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  • Preparation of long-lasting transparent glass-ceramic phosphor

    Grant number:11555167  1999 - 2002

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    MIURA Yoshinari, NANBA Tokuro, JIE Fu

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    Grant amount:\11400000 ( Direct expense: \11400000 )

    The preparation of the transparent glass-ceramics with long lasting phosphorescence (LLP) was tried by precipitation of crystals from glassy materials by means of various experimental methods. The glass-ceramics containing calcium aluminate crystals co-doped with Eu^<2+> and Nd^<3+> or akermanite (strontium magnesium silicate) type crystals co-doped with Eu^<2+> and Dy^<3+>. The glass in the system 45CaO・45Al_2O_3・10SiO_2 (mol%) containing 0.5Eu_2O_3+1Nd_2O_3 showed very weak LLP property due to glassy state even though Eu ions were effectively reduced to Eu^<2+> ion state by melting the glass with reducing agents like sugar or graphite. Therefore to keep a certain crystal state is necessity to excellent LLP property. The effects of ultrasonic surface treatment (UST) on the crystallization behavior and optical emission properties were investigated for the transparent glass-ceramics prepared from calcium aluminosilicate glasses co-doped with Eu^<2+> and Nd^<3+>. The glass-ceramics A were prepared by sintering a glass 45CaO・45Al_2O_3・10SiO_2 (mol%) containing O.5Eu_2O_3+1Nd_2O_3 under a 2%H_2+98%Ar reducing atmosphere. In the glass-ceramics A, three crystalline phases, CaAl_2O_4(CA), CaAl_4O_7(CA2) and Ca_2Al_2SiO_7(CAS) were commonly confirmed by X-ray diffraction. No drastic change in the amount of the precipitated crystalline phases was observed even in the case using UST of CA powders. It was suggested that the optical emission properties of the glass-ceramics A was responsible for the CA2 crystals. The glass-ceramics B were also prepared from a 51CaO・42Al_2O_3・7SiO_2 glass. The CA crystals were separately precipitated in the glass-ceramics B. In particular, a large amount of CA was successfully produced by stirring the UST suspension to prevent the sedimentation of the UST particles. The glass-ceramic B so-prepared showed strong photoluminescence but weak phosphorescence compared with other glass-ceramics B, indicating that the photoluminescence and phosphorescence were originated in different electron-trapping levels. The amount of the trap levels associated with the long lasting phosphorescence, such as oxygen vacancies, was probably small in the glass-ceramic B prepared with the stirring UST. When the glasses were melted with reducing agent like sugar and partially crystallized under a reducing atmosphere glass-ceramics showed excellent LLP properties. The glass-ceramics with LLP precipitated akermanite type crystals co-doped with Eu^<2+> and Dy^<3+> were also obtained by melting and crystallizing under reducing conditions.

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  • ヘテロ界面での光散乱による希土類イオンドープ分相ガラスの発光特性

    Grant number:11875141  1999 - 2000

    日本学術振興会  科学研究費助成事業  萌芽的研究

    三浦 嘉也, 難波 徳郎

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    Grant amount:\2100000 ( Direct expense: \2100000 )

    研究の目的と計画 希土類イオン含有ガラスを分相させることによって生じる不均質界面での光散乱を利用すれば蛍光の発光効率が大きな透明ガラスセラミックスを作製できるので蛍光強度の増大メカニズムを詳しく解析するとともに,異なる分相処理条件(熱処理温度・時間,超音波表面前処理(UST))で作製した分相ガラスの蛍光強度,分相組織と組成,フォノンサイドバンド,蛍光寿命を検討して光閉じ込め効果など分相界面での光散乱現象を利用した高効率発光材料の作製を試みる。
    成果の概要 分相ガラスを希土類イオンの光学ホストとして用いてその発光特性と分相の度合いとの相関を検討した。分相したほう珪酸塩ガラス(6Na_2O・31B_2O_3・63SiO_2[mol%]・5Eu_2O_3[wt%])の吸収スペクトルと蛍光スペクトルの測定を行ったところ,吸光度と蛍光強度は共に均質なガラスに比べて増大した。吸光度が増大したのは分相によって生じた界面による光散乱が増大したためである。蛍光強度が増大したのは界面により励起光が散乱され,発光に関与するEu^<3+>の数が増加したことによる。さらに詳細な検討を行うためにバイノーダル分相をする13.6NaO_<0.5>・43.6BO_<1.5>・42.8SiO_2・1.0EuO_<1.5>について定量的検討を加えたところ,分相処理温度を700℃に固定し熱処理時間を変化させた場合,蛍光強度は熱処理時間が約6時間までは増大し,それ以降はわずかながら減少した。熱処理時間6時間までは分相によって生じた界面により励起光が散乱され発光に関与するEu^<3+>の数が増加する効果が支配的であり,それ以降は蛍光波長付近の透過率が低下し,ガラス外に放出される蛍光が減少する効果の寄与が支配的になるものと考えられる。蛍光強度が極大を示したガラスでの分相粒径は約300nmであった。時間を固定し,温度を変化させて熱処理した場合,蛍光波長付近(600nm)の光散乱の寄与が小さい時は蛍光強度は励起波長付近(460nm)の光散乱強度に大きく依存することが分かった。散乱粒子が波長と同程度の大きさの場合,光散乱はミーの散乱理論で説明できる。散乱粒子が小さい時には散乱光強度の角度分布は前方散乱と後方散乱がほぼ等しいが,散乱粒子が大きくなると前方散乱が大きくなる。熱処理時間が長くなるに伴い分相粒が大きくなると前方散乱の方が大きくなるために散乱強度は強くなる。しかし熱処理時間が長くなるに伴い蛍光波長付近の透過率が低下しガラス外に放出される蛍光が減少するために熱処理時間が約6時間で蛍光強度が極大を示したものと考えられる。
    次にCaO-Al_2O_3-SiO_2系ガラスの表面にEr^<3+>・Yb^<3+>ドープCa_2Al_2SiO_7結晶層が析出した透明表面結晶化ガラスをUST法で作製した。この結晶層はガラスより屈折率が大きいので入射光を表面結晶層に閉じこめ光導波させることができた。この結果より,光増幅機能を有する光導波路スラブの作製に関する基礎が確立できた。

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  • PREPARATION OF MICRO-OPTICS MATERIALS BY MEANS OF SURFACE CRYSTALLIZATION OF GLASSES

    Grant number:09555193  1997 - 1999

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    NANBA Tokuro, OKANO Hiroshi, DING Yong, MIURA Yoshinari

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    Grant amount:\12000000 ( Direct expense: \12000000 )

    The purpose of the research project is to develop a new technique, Ultrasonic Surface Treatment (UST), control the surface crystallization of glasses for preparation functional optical materials, especially for nonlinear materials. The potential applications in micro-optical devices are to be explored. The research results obtained are summarized as follows :
    Surface crystallization of LiNbOィイD23ィエD2 on KィイD22ィエD2O・(35-x)LiィイD22ィエD2O・30NbィイD22ィエD2OィイD25ィエD2・35SiOィイD22ィエD2 (mol%) glasses was investigated. The c-axis orientation of surface crystallized LiNbOィイD23ィエD2 was improved when 10mol% KィイD22ィエD2O was added in the glass. Furthermore, Li ions in the LiNbOィイD23ィエD2 crystallites were partially exchanged by K ions from the glass. Transparent surface crystallized LiNbOィイD23ィエD2 films on glasses were prepared by the controlled heat treatment, which showed optical second harmonic generation. The estimated second-order nonlinear optical susceptibilities were dィイD233ィエD2=6.40pm/V and dィイD231ィエD2=dィイD221ィエD2=dィイD224ィエD2=dィイD215ィエD2=1/3dィイD233ィエD2=2.14pm/V for a thin film (1.33mm in thickness) prepared after heating at 620℃ for 3h, when the c-axis oriented thin film was described by a space group CィイD2αVィエD2.
    Crystal slab optical waveguides of calcium aluminum silicate (CaィイD22ィエD2AlィイD22ィエD2SiOィイD27ィエD2) were prepared by controlled surface crystallization of glass using ultrasonic surface treatment (UST) and heat treatment. Here UST is necessary to get uniform crystalline films showing optical waveguide characteristics. By controlling the depth of the waveguides with varying heat treatment temperatures and tomes, single-mode and multi-mode waveguides were obtained. The refractive index and optical propagation loss of the slab waveguides was characterized.
    The research results indicate that the UST technique for controlled surface crystallization of glass is very unique and useful. By means of this technique, oriented, dense, and transparent thin films showing optical nonlinear and waveguide could be prepared. The advantages of glass and crystal could be combined by preparing surface crystallized optical materials. There is potential application of the technique for various micro-optical materials.
    Particularly, the UST technique reduces significantly the beginning temperature of crystallization, avoiding deformation of mother glass. It is therefore concluded that the UST technique has a bright prospect of developing the optical waveguides.

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  • Development of New Optical Properties in Bismuthate Glasses

    Grant number:09555278  1997 - 1998

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    MIURA Yoshinari, YOSHIMATSU Hideyuki, DING Yong, NANBA Tokuro

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    Grant amount:\8500000 ( Direct expense: \8500000 )

    Bismuthate glasses showed novel optical properties. Remarkable thermochromic, photo- conductive, photochromic properties and changes in color for the glasses and glass-ceramics of Bi2O3 based heavy-metal oxide system were found. The bismuthate glasses containing CdO showed both thermochromism and photochromism. The bismuthate glasses crystallized to various metastable states with various colors by heat-treatments. The X-ray photoelectron spectroscopy measurement indicated that the O1s binding energies of Bi_2O_3 based glasses were considerably lower than the values of the silicate and borate glasses, and their full widths at half maximum are very narrow and it was impossible to distinguish between bridging and non- bridging oxygens. These features of the heavy-metal oxide glasses mainly arise from both the nonbonding pair electrons It and delocalization of electrons in the outermost shell of Bi^<3+> and oxygen ions.

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  • 非晶質酸化タングステン複合薄膜におけるイオン拡散・着色機構に関する研究

    Grant number:09215224  1997

    日本学術振興会  科学研究費助成事業  重点領域研究

    難波 徳郎, 丁 勇, 三浦 嘉也

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    Grant amount:\1800000 ( Direct expense: \1800000 )

    非晶質酸化タングステン薄膜に電気化学的にLi^+イオンを挿入し,X線光電子分光法により価電子帯近傍の光電子スペクトルの変化を観測した。その結果,Liの挿入に伴い0eV付近に新たなピークが出現し,Li量の増加に伴い成長した。更に,多量のLi挿入により10eVに別のピークが出現した。一般に,酸化タングステン薄膜ではWの酸化数は+6であり5d軌道は空軌道であり,挿入イオンと同時に共注入される電子がWの5d軌道にトラップされることにより,膜の色が無色から青色へと変化するとされている。0eV付近に現れたピークはW5d軌道に電子が入ったことを表すものであり,膜の着色に直接関与するピークである。イオンの過剰な挿入により膜特性が劣化するとの指摘があるが,10eV付近のピークは特性劣化に関与する膜の電子状態変化に対応しているものと考えられる。このような電子状態変化は単独で起こるものではなく,原子配列の変化に起因するものである。本研究では,酸化タングステン薄膜の電子状態変化に着目し,クラスター分子軌道計算により価電子帯スペクトルのシミュレーションを行うことにより,原子配列と電子状態の相関について検討した。
    代表研究者の研究グループは非晶質酸化タングステン薄膜の構造解析を永年にわたり行っており,基本的な膜構造は六方晶型WO_3結晶と正方晶型WO_3結晶のいずれかに類似した骨格構造を有していることが明らかになっている。そこで,この二つの結晶からWO_6八面体の七量体を抽出しクラスターモデルとした。イオンの挿入はクラスター中のW5d軌道に電子を挿入することでその状態を模した。結晶の骨格構造を保持したまま電子を挿入していくと,実験スペクトルと同様にHOMOレベルの直上にW5dによる準位が出現した。しかし,挿入電子の量を増やしても10eV付近に新たな準位の生成は認められなかった。この時,六本あるW-O結合のうち一本の結合性が電子挿入により結合性から反結合性へと変化していた。このような化学結合性の変化を反映する構造変化を考慮することにより,実験スペクトルを良好に再現することができた。

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  • Department of Interstitial Nitrogen Rare-Earth Magnet Material Through Nitriding under Atmospheric-pressure Plasma

    Grant number:06555213  1994 - 1995

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Developmental Scientific Research (B)

    TAKADA Jun, MISHIMA Akio, KUWAHARA Hideyuki, NANBA Tokuro

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    Grant amount:\6600000 ( Direct expense: \6600000 )

    The aim of this research is first development of new atmospheric pressure hybrid plasma nitriding apparatus by which a number of advantages are expected to be introduced into synthesis of new nitrides and surface modification. Secondly the aim is development of recently found Sm_2Fe_<17>N_X magnetic materials with high quality and excellent property. Moreover, in order to ensure the effects of the newly developed atmospheric pressure hybrid plasma nitriding apparatus, synthesis of Mo nitrides was first tried at lower temperatures using the newly developed apparatus.
    In 1994, we studied the formation process of Sm_2Fe_<17>N_X through usual nitriding under 1 atm N_2 gas flow and made clear the precipitation process of a-Fe which degraded the magnetic properties of Sm_2Fe_<17>N_X materials. Furthermore, we developed, first in the world the atmospheric pressure hybrid plasma nitriding apparatus which was enable to increase the degree of ionization due to high presure (atmospheric) plasma and to supply much larger amount of nitrogen than thermal equilibrium one due to hybrid of DC and RF glow charge plasma. The conditions of stable hybrid plasma were discussed.
    In 1995, the preparation of high quality Sm_2Fe_<17>N_X materials was studied using newly developed atmospheric pressure hybrid plasma nitriding apparatus. As a result we succeeded synthesis of the materials at markedly lower temperatures in comparison with usual N_2 gas nitriding. We also found high quality materials due to suppression of formation of a-Fe.
    Furthermore, synthesis of Mo nitrides was studied using atmospheric pressure high hybrid plasma nitriding apparatus. We first found that the formation temperature of the Mo nitrides were remarkably lower in hybrid plasma nitriding than in the usual N_2 gas nitriding. In addition, MoN which did not formed at low temperature in the usual N_2 gas nitriding, was found to form at 500゚C in hybrid plasma nitriding.

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  • X線光電子分光法と分子軌道計算によるガラスの電子構造解析

    Grant number:06855076  1994

    日本学術振興会  科学研究費助成事業  奨励研究(A)

    難波 徳郎

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    Grant amount:\900000 ( Direct expense: \900000 )

    (1)高真空中で破断した正常なガラス表面に単色Al-Kα X線を照射してX線光電子スペクトル(XPS)の測定を行った。測定中は資料表面に低エネルギーの電子シャワーを照射し、さらに試料表面の約1mm上方にNi金属メッシュを置くことで、均一な帯電中和補正が可能となった。その結果、石英ガラスの酸素およびケイ素の内殻準位について、従来の報告例に比較して半価幅の小さい非常にシャープなピークを得ることに成功した。
    (2)次に、2成分系アルカリケイ酸塩ガラスのXPSスペクトルの測定を行った。その結果、Olsスペクトルを架橋酸素と非架橋酸素に帰属される明瞭な2つのピークに分離できた。さらに、Ols結合エネルギーはアルカリ酸化物の含有量が増すほど、また同じアルカリ含有量ではアルカリ種がLi、Na、Kの順に低エネルギー側にシフトすることを見出した。また、陽イオンの内殻準位の結合エネルギーもOlsと同様に僅かなシフトを示すことを確認した。このシフト量は陽イオン、陰イオン間の相対的な塩基度に支配されていると結論付けた。
    (3)価電子帯近傍のXPSスペクトルについても従来にない鮮明なスペクトルを得ることに成功した。DV-Xα法を用いた分子軌道計算(新規備品)により求めた状態密度は実測のXPSスペクトルと非常に良く対応していた。
    (4)本研究で得られたXPSスペクトルをデータベースとして公開するために、測定データの書式について検討するとともに、学内LAN上でのデータ転送試験を行った。

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  • Bi系高温相の新しい生成過程と超伝導特性

    Grant number:05224232  1993

    日本学術振興会  科学研究費助成事業  重点領域研究

    高田 潤, 冨井 洋一, 難波 徳郎

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    Grant amount:\2500000 ( Direct expense: \2500000 )

    Bi系2223相は線材などへの実用材料として有用にもかかわらず、この相の本質的な性質、特に熱的安定性(アニールによる変化)や機械的粉砕による変化とその後の再生成については現在もなお十分明らかにされたとは言い難い。従来の研究では、前者の性質は全く知られておらず、また後者の変化についてもほとんど注目されていなかった。これらの性質を究明することは、高品位な材料(例えば組成を制御した線材や高純度な材料)を作製する上で必要不可欠である。そこで、本研究ではこれらの2223相の本来の性質を明らかにすることを目的とした。
    本研究では、まず2223相結晶本来の熱的安定性明らかにするために、Pb置換2223相単相Bi_<1.8>Pb_<0.4>Sr_<2.0>Ca_<2.0>Cu_<3.2>O_zのバルク試料を用いて、種々の温度でアニールした場合の第二相の生成とそれに伴う2223相の組成、構造および超伝導特性の変化を検討した。Pb置換高温相は酸化性雰囲気では600〜800℃でSr_<2.5>Bi_<0.5>Pb_3Ca_2CuO_zを析出し、Pb-poorな2223相に変化する。また、この析出物は850℃の再加熱で2223結晶中へ再固溶する。この析出と再固溶反応は、850℃ではPbは高温相中で相中でPb^<2+>として安定であるが、600〜800℃ではPb^<4+>が安定であることを示唆している。
    次に機械的粉砕によって2223相が通常の酸化物では考えられないほどの超微細な結晶や非晶質に変化することを明らかにした上で、これらの超微細粉の再加熱時の変化を検討した。超微細粉を再加熱すると複雑な反応が起こり、温度に依存して種々の相が生成する。850℃の再加熱では液相が多量に生成し、2223相粒子の再生成は起こらない。また、超微細粉と細かい2223相の混在試料では、800℃以下で種々の相が生成するが、850℃の再加熱で2223相が再生成しその単相となる。この2223相の再生成過程は、通常の酸化物と炭酸塩の原料からの2223相の生成過程と異なることが明らかとなった。
    以上の結果は高品位材料や特性のよい線材を作製する上で、極めて重要な指針を示している。

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  • Development of Glass Fillers with Controlled Releasing Ability of Ions for Dental Application

    Grant number:04555187  1992 - 1993

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Developmental Scientific Research (B)

    MIURA Yoshinari, ASADA Masayuki, NANBA Tokuro, OSAKA Akiyoshi

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    Grant amount:\10900000 ( Direct expense: \10900000 )

    Composite resins composed of PMMA as matrix and glass powders as fillers for restoration of decayd or injured teeth have been researched extensively, which are believed to be effective in cohesiveness with tooth enamel. However, the chemical durability, hardness, transparency of the fillers are to be improved. Furthermore, the dental materials having further functions such as controlled release of ions are greatly desired. This research is to develop glass fillers having F^- and Sr^<2+> releasing characteristic in order to fluorizate natural teeth for preventing tooth decaying. The optimization of required other physical and chemical properties of the glass fillers is also investigated.
    The selected glass systems were SiO_2-B_2O_3-BaO-SrO-AlF_3, SiO_2-B_2O_3-Al_2O_3-BaO-SrF_2, SiO_2-B_2O_3-Al_2O_3-BaF_2-SrF_2 and SiO_2-B_2O_3-SrO-AlF_3-BaF_2. The dependences of various properties including extraction rates of ions on their compositions were researched. The summarized results are as follows :
    1. The extraction of ions from glasses was diffusion controlled after a reaction process of extraction at the initial stage.
    2. Aluminum element in glass playd a role of reducing the total extraction of ions. It was explained that the formation of protective films being rich in Al^<3+> ions prevented further extraction of ions besides 4-coordinaded Al^<3+> ions improved the glass structure.
    3. Adding of boron element increased the total extraction of ions. Besides it was due to the poor durability of B-O-B structure unit in water, the dissolvability of B_2O_3 rich phases in phase separated glasses was another reason because increased tendency of phase separation was observed due to increasing of B_2O_3.
    From the above results, it is concluded that the extraction of ions from glass are controllable by using the effect of Al^<3+> ions and selecting glass composition, and glasses with controlled releasing ability of ions can also be prepared by useful application of phase separation characteristic of glass.

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  • Preparation of Fact-Ion Conductive Thin Films as nano-sized Battery Electrolytes

    Grant number:04650705  1992 - 1993

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for General Scientific Research (C)

    OSAKA Akiyoshi, FUJII Tatsuo, NANBA Tokurou

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    Grant amount:\1870000 ( Direct expense: \1870000 )

    The present research was exploited based on a demand for developing optical memory materials and electrolytes for fine scale solid batteries. Thin films of the systems F-O-Si-Pb and CuI-MoO_4-P_2O_5 were prepared with an rf-sputtering technique and their microstructure, electrical conductivity and phase change due to laser irradiation.
    1. Amorphous thin films of the system F-O-Si-Pb
    Amorphous thin films of the system F-O-Si-Pb were rf-sputtered under the conditions : the Ar chamber pressure : 0.06-0.07 Torr, rf-power : 100W, sputtering time : 45min. X-ray photoelectron spectra showed that the fluorine atoms were homogeneously distributed in the films but the ratio F-Si/F-Pb decreased in the direction from the surface to the film-substrate interface. The results were accounted for by an increase in non-bridging oxygen due to a reaction Si-O-Si->Si-F+Si-O^-. Irradiation of 3mW He-Ne laser beam (lambda=632.8nm) for 1/500s induced crystallization of a quartz in the area of 11mum radium, independent of the fluorine content, but not induced an expected PbF2 phase of high conductivity. Fluorine ionic conductivity obeyed an Arrhenius type temperature dependence with sigma=1.1x10-5 S/cm at 500K, two orders of magnitude larger than the corresponding bulk glass, and activation energy of 106.5kJ/mol.
    2. Amorphous thin films of the system CuI-MoO_4-P_2O_5
    A target of a composition 25CuI・25Cu_2O・25MoO_4・25Cu_3(PO_4)_3 was rf-sputtered with the same conditions above to prepare amorphous films. They had a particular microstructure and were insulators below 550K with conductivity as small as 10^<-8> S/cm. The increase in the rf-power grew cubic particles of gamma-CuI while a large fraction of Cu atoms were divalent. The laser irradiation dug holes of 8mum in diameter even at 1/500 s and the holes grew to 12 at 1s irradiation, whereas no crystallization was observed.

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  • スパッタ法により作成した非晶質酸化タングステン薄膜の構造と物性に関する研究

    Grant number:04750674  1992

    日本学術振興会  科学研究費助成事業  奨励研究(A)

    難波 徳郎

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    Grant amount:\900000 ( Direct expense: \900000 )

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  • Preparation of Multi-layered Ceramic Particles

    Grant number:02650564  1990 - 1991

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for General Scientific Research (C)

    OSAKA Akiyoshi, NANBA Tokurou

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    Grant amount:\1700000 ( Direct expense: \1700000 )

    The microstructures or surface morphology of ceramic particles depend on the preparation procedure and conditions, and thus their properties vary, accordingly. With utilizing such flexibility one can control the microstructure of the particulate and prepare ceramic particles which have a multi-layered or tailored microstructure. This study aims to clarify the dependence of the microstructure of of the ceramic particles through ultrasonic-spray pyrolysis on the experimental conditions.
    Hematite particles were first prepared by ultrasonic spraying aqueous solutions ferric nitrate. The surface was smooth for the particles out of the solutions without additives (glycerol). Larger particles were hollow with a thick shell, while medium sized particles were dense. The solutions with the additive yielded hollow particles with a thin shell, and dimples were observed on the shell which were caused by the release of decomposed gas out of the particles.
    Hydroxyapatite (HAP) Particles were prepared by ultrasonic spray-pyrolysis of aqueous solutions of calcium lactate or acetate, ammonium dihydrogen orthophosphate with EDTA as the chelating agent. The surface morphology of the particles depended on the experimental conditions while the rough surface was observed for the well-calcined particles. The particles were about 0.5mum in diameter.
    With those aqueous solutions HAP-hematite composite particles were prepared through the ultrasonic spray pyrolysis where the molar ratio HAP/hematite was 1/0.5-1/9. The average diameter ranged from 0.2 to 0.6mum. With larger HAP content the surface was wrinkled or dimple-full, while the smooth surface was for the particles with greater hematite contents. A shell-nuclear type double layer structure was confirmed for larger particles (>O. 8mum in diameter). Such layered structure was built by initiating the HAP precipitation on the surface of the droplets due to breakage of Ca-EDTA chelate bonding.

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  • Layer-by-Layer Preparation and Property of Functional Ceramics with Artificial Lattices.

    Grant number:62430016  1987 - 1990

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for General Scientific Research (A)

    MIURA Y, NANBA T, OSAKA A, BANDO Y, TAKADA J

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    Grant amount:\10300000 ( Direct expense: \10300000 )

    A few metals were evaporated in vacuum from each source, heated by an electron beam or a resistance heater, and were reacted with activated gases in order to deposit thin films of relevant compounds (Activated reactive evaporation, ARE, method). Employing the ARE method we have prepared several oxidefilms of artificial lattices and epitaxically grown films of single oxides, examined their structure, and measured physical properties. The results are :
    1) Thin oxide films of artificial lattices were prepared in the systems CoO/NiO, Fe_3O_4/CoO and Fe_3O_4/SiO_2. They had distorted superlattices, whose magnetic structures and magnetic transformation temperatures depended on their film thickness.
    2) CoO/SiO_X layered films were prepared. Hydrogen reduction yielded the layered Co/SiO_X films in which a layer of ultrafine particles of metallic Co were sandwiched between the SiO_X layers. The Co particles were superparamagnetic and protected by the SiO_X layers.
    3) Simultaneous reactive evaporation of Cu, Y and Ba yielded superconducting YBa_2Cu_3O_<7-X> films at 600゚C having Tc=90K and Jc=4x10^6 A・cm^<-2>.
    4) Though each layer of thinner films of NiO/ZnO artificial lattices took a NaCl type structure, the ZnO layer of thicker films took a Wurtzite structure.
    5) (100) -oriented BaTiO_3 films were epitaxically grown on a substrate, SrTiO_3/Pt. The as-grown films were ferroelectric and had a resistance >10^9 OMEGA・cm.
    6) We have established a routine to prepare stoichiometric PbTiO_3 with preferred orientation : c-axis oriented films were deposited on MgO (100) substrates and (111) -oriented ones on the sapphire c-planes. Those as-grown films were ferroelectric and exhibited good pyroelectricity.
    7) A detailed examimation was made on the mechanism of diposition c-axis oriented ZnO films on silica glass substrates. Transparent electroconductive films of Al doped ZnO were prepared. The transparent films doped with 2-5% Al could be deposited on the substrate whose temperature was kept at as lowas 150^0C, and they had specific resistivity <1x10^<-3> OMEGA・cm.

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  • Inorganic Materials Chemistry (2020academic year) 3rd and 4th semester  - 火4,火5

  • Mathematics for Material Chemistry (2020academic year) 1st semester  - 水1,水2

  • Mathematics for Material Chemistry (2020academic year) 1st semester  - 水1,水2

  • Special Research (2020academic year) Year-round  - その他

  • Introduction to Modern Chemistry (2020academic year) 3rd and 4th semester  - 火9

  • Environment and Materials (2020academic year) Third semester  - 水1,水2,水3

  • Materials in the Environment (2020academic year) Third semester  - 水1,水2,水3

  • Environment and Materials (2020academic year) Third semester  - 水1,水2,水3

  • Topics in Sustainable Conservation and Management of Environment (2020academic year) Late  - その他

  • Introduction to Environmental Chemistry (2020academic year) 1st semester  - 木1,木2

  • Environmental Policy (2020academic year) Second semester  - 水1,水2,水3

  • Environmental Policy (2020academic year) Second semester  - 水1,水2,水3

  • Topics in Environmental Chemistry and Materials A (2020academic year) Summer concentration  - その他

  • Topics in Environmental Chemistry and Materials II (2020academic year) Summer concentration  - その他

  • Introduction to Environmental Science and Technology (2020academic year) Third semester  - 火1,火2,火3

  • Introduction to Environmental Science and Technology (2020academic year) Third semester  - 火1,火2,火3

  • Topics in Environmental Science (2020academic year) Prophase  - その他

  • Topics in Sustainable Conservation and Management of Bio-Resource (2020academic year) Late  - その他

  • Computational Materials Science (2020academic year) Late  - その他

  • Topics in Agricultural and Life Science (2020academic year) Prophase  - その他

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