研究者詳細 - 岸本　昭

Dynamic domain motion enhancing electro-optic performance in ferroelectric films 査読

Shinya Kondo, Kazuki Okamoto, Osami Sakata, Takashi Teranishi, Akira Kishimoto, Takanori Nagasaki, Tomoaki Yamada

Applied Physics Letters 126 ( 1 ) 2025年1月

掲載種別：研究論文（学術雑誌）出版者・発行元：AIP Publishing

With the rapid advancement of information technology, there is a pressing need to develop ultracompact and energy-efficient thin-film-based electro-optic (EO) devices. A high EO coefficient in ferroelectric materials is crucial. However, substrate clamping can positively or negatively influence various physical properties, including the EO response of these films, thus complicating the development of next-generation thin-film-based devices. This study demonstrates that reversible dynamic domain motion, achieved through substrate clamping, significantly enhances the EO coefficient in epitaxial ferroelectric rhombohedral Pb(Zr, Ti)O3 thin films, where the (111) and (111¯) domains coexist with distinct optical axes. In principle, this approach can be applied to different film-substrate systems, thereby contributing to the advancement of sophisticated EO devices based on ferroelectrics.

DOI： 10.1063/5.0244707

Doping Rare Earth Dependent Mechanical Strength Improvement on Reduction of Ceria Based Solid Electrolytes 査読

Taiga UEHARA, Shinya KONDO, Takashi TERANISHI, Akira KISHIMOTO

Journal of the Japan Society of Powder and Powder Metallurgy 71 ( 11 ) 529 - 533 2024年11月

Colossal Dielectric Constant of Nanocrystalline/Amorphous Homo-Composite BaTiO3 Films Deposited via Pulsed Laser Deposition Technique 査読

Shinya Kondo, Taichi Murakami, Loick Pichon, Joël Leblanc-Lavoie, Takashi Teranishi, Akira Kishimoto, My Ali El Khakani

Nanomaterials 14 ( 20 ) 1677 - 1677 2024年10月

掲載種別：研究論文（学術雑誌）出版者・発行元：MDPI AG

We report the pulsed laser deposition (PLD) of nanocrystalline/amorphous homo-composite BaTiO3 (BTO) films exhibiting an unprecedented combination of a colossal dielectric constant (εr) and extremely low dielectric loss (tan δ). By varying the substrate deposition temperature (Td) over a wide range (300–800 °C), we identified Td = 550 °C as the optimal temperature for growing BTO films with an εr as high as ~3060 and a tan δ as low as 0.04 (at 20 kHz). High-resolution transmission electron microscopy revealed that the PLD-BTO films consist of BTO nanocrystals (~20–30 nm size) embedded within an otherwise amorphous BTO matrix. The impressive dielectric behavior is attributed to the combination of highly crystallized small BTO nanograins, which amplify interfacial polarization, and the surrounding amorphous matrix, which effectively isolates the nanograins from charge carrier transport. Our findings could facilitate the development of next-generation integrated dielectric devices.

DOI： 10.3390/nano14201677

Polarization at the compositional interface in Nb-doped metastable TiO₂-SnO₂ solid solutions 査読

Takashi Teranishi, Junsuke Satake, Shinya Kondo, Akira Kishimoto

Japanese Journal of Applied Physics 63 ( 7 ) 07SP05 - 07SP05 2024年7月

担当区分：最終著者掲載種別：研究論文（学術雑誌）出版者・発行元：IOP Publishing

Abstract

Polarization architecture was incorporated into metastable Nb-doped TiO₂-SnO₂ to deliver electron accumulation at the localized TiO₂-SnO₂ compositionally fluctuating interface. Specimens were quenched from various holding temperatures to ambient temperatures in air to avoid bimodal decomposition into TiO₂ and SnO₂ endmembers. At the lowest sintering temperature of 1,400 °C, the mixed phase containing TiO₂- and SnO₂-rich compositions existed as an intermediate state to the single-phase solid solution. The phase boundary became more ambiguous with increasing sintering temperatures, and the compositional fluctuation size reduced to single nanometers at 1,500 °C. The permittivity due to the interfacial polarization, ε _interface, increased steadily with increasing sintering temperature. The larger ε _interface values at higher temperatures are attributed to the greater density of the compositionally fluctuating phase interface, which leads to greater electron accumulation at the energy barrier between the two semiconducting layers.

DOI： 10.35848/1347-4065/ad5e8d

Enhanced Charge Accumulation in Activated Carbon via the Dielectric Interface 査読

その他リンク： https://iopscience.iop.org/article/10.35848/1347-4065/ad5e8d/pdf

Yuji Toyota, Takashi Teranishi, Kosuke Fukui, Masakuni Takahashi, Ji Qiuyu, Shinya Kondo, Masanobu Nakayama, Akira Kishimoto

ACS Applied Energy Materials 7 ( 4 ) 1440 - 1447 2024年2月

外場としてのミリ波を援用した高温電気化学デバイスの特性変化査読

Takuro FUJIWARA, Takashi TERANISHI, Akira KISHIMOTO, Seiichi SUDA

Journal of the Japan Society of Powder and Powder Metallurgy 70 ( 9 ) 387 - 391 2023年9月

負膨張材料を分散させた表面層を持つセラミックス積層体の耐熱衝撃性査読

Takaya UENO, Shinya KONDO, Takashi TERANISHI, Akira KISHIMOTO

Journal of the Japan Society of Powder and Powder Metallurgy 70 ( 8 ) 376 - 379 2023年8月

Polarization contributions to DC bias characteristics of nanograined BaTiO₃-based ceramics 査読

Takashi Teranishi, Ruku Ozaki, Shinya Kondo, Akira Kishimoto

Japanese Journal of Applied Physics 62 ( SM ) SM1015 - SM1015 2023年8月

担当区分：最終著者掲載種別：研究論文（学術雑誌）出版者・発行元：IOP Publishing

Abstract

The domain configuration contributions to the DC bias characteristics of nanograined BaTiO₃ were clarified. Domain boundaries became more ambiguous with decreasing grain size (g.s.), whereas domain patterns partially vanished because of the reduction in BT ferroelectricity, in the g.s. range <1 μm. Additionally, intergranular stress increased with decreasing g.s., resulting in crystal lattice hardening in the vicinity of the domain walls (DWs) and suppression of dipole fluctuations in the DWs. These domain structural variations with the domain size (d.s.) reduced permittivity in the absence of a DC electric field, resulting in improvements in permittivity depressions in an electric field (Δε). Magnesium substitution slightly decreased the d.s. The increase in DW density upon Mg loading implied defect pairs, ${ { \rm{Mg } } }_{ { \rm{Ti } } }^{"}$–${ { \rm{V } } }_{ { \rm{o } } }^{\bullet \bullet },$ which acted as new DW pinning centers, thereby subdividing the DWs. The Δε notably improved via Mg loading, because a defect pair effectively pins the DWs under the electric field.

DOI： 10.35848/1347-4065/ace6a8

その他リンク： https://iopscience.iop.org/article/10.35848/1347-4065/ace6a8/pdf

Spinodal decomposition-derived giant polarization in TiO2–SnO2 generated from a metastable phase 査読

Takashi Teranishi, Hideki Matsui, Shinya Kondo, Akira Kishimoto

Journal of Applied Physics 133 ( 17 ) 2023年5月

担当区分：最終著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：{AIP} Publishing

<jats:p>Spinodal decomposition (SD) was incorporated into Nb-doped metastable TiO2–SnO2 to achieve giant interfacial polarization. The dielectric characteristics were analyzed using an equivalent circuit involving electron migration, where the SD bulk is given by the universal dielectric response relation. Both the Nb–TiO2 and the Nb–SnO2 layers showed semiconductive behaviors. With increasing SD treatment temperature, the SD volume fraction increased, as did cation interdiffusion at the SD interface, resulting in a large dielectric loss. The optimal SD temperature was determined as 1100 °C, where the Maxwell–Wagner capacitance showed a very high value of 44.6 μF corresponding to the permittivity at the lowest frequency exceeding 106. Such colossal polarization was considered due to an accumulation of trapped electrons at the Schottky barrier at SD layers with different conductivities.</jats:p>

DOI： 10.1063/5.0144782

Capacity retention improvement of LiCoO₂ cathodes via their laser-ablation-based nanodecoration by BaTiO₃ nanoparticles 査読

Ceria-based solid electrolyte exhibits superior mechanical and electric properties compared to zirconia-based solid electrolyte 査読

Akira Kishimoto, Taiga Umemura, Shinya Kondo, Takashi Teranishi

Ceramics International 48 ( 15 ) 21865 - 21872 2022年8月

Takashi Teranishi, Yumi Yoshikawa, Joël Leblanc-Lavoie, Nazar Delegan, Ibrahima Ka, Akira Kishimoto, My Ali El Khakani

Journal of Applied Physics 131 ( 12 ) 124105 - 124105 2022年3月

Evaluation of superplastic-foamed zirconia-based ceramics using foaming agent and a superplasticity facilitator derived from rice husk 査読

Akira Kishimoto, Kentaro Tanaka, Takashi Teranishi

Journal of Porous Materials 29 ( 1 ) 153 - 159 2022年2月

Ultrafast Ion Transport via Dielectric Nanocube Interface 査読

Takashi Teranishi, Ryoji Yamanaka, Ken‐ichi Mimura, Mika Yoneda, Shinya Kondo, Kazumi Kato, Akira Kishimoto

Advanced Materials Interfaces 9 ( 4 ) 2101682 - 2101682 2021年12月

Revealing intrinsic electro-optic effect in single domain Pb(Zr, Ti)O3 thin films 査読

Shinya Kondo, Tomoaki Yamada, Masahito Yoshino, Takashi Teranishi, Akira Kishimoto, Takanori Nagasaki

Applied Physics Letters 119 ( 10 ) 102902 - 102902 2021年9月

Influence of orientation on the electro-optic effect in epitaxial Y-doped HfO2 ferroelectric thin films 査読

Shinya Kondo, Reijiro Shimura, Takashi TERANISHI, Akira Kishimoto, Takanori Nagasaki, Hiroshi FUNAKUBO, Tomoaki Yamada

Japanese Journal of Applied Physics 60 ( SF ) 2021年7月

Linear electro-optic effect in ferroelectric HfO2-based epitaxial thin films 査読

Shinya Kondo, Reijiro Shimura, Takashi Teranishi, Akira Kishimoto, Takanori Nagasaki, Hiroshi Funakubo, Tomoaki Yamada

Japanese Journal of Applied Physics 60 ( 7 ) 070905 - 070905 2021年7月

掲載種別：研究論文（学術雑誌）出版者・発行元：IOP Publishing

<title>Abstract</title>
Electro-optic (EO) modulators for silicon photonics using CMOS-compatible materials and processes are in great demand. In this study, epitaxial (100)-undoped HfO₂ and Y-doped HfO₂ thin films were fabricated on Sn-doped In₂O₃/yttria-stabilized zirconia(100) substrates at room temperature via magnetron sputtering. EO measurement of the Y-HfO₂ film using modulation ellipsometry showed that the phase was changed by 180° after application of positive and negative poling biases, and the modulation amplitude increased linearly with increasing AC electric field, indicating a linear EO effect based on ferroelectricity. The observed results indicate that ferroelectric HfO₂-based films are viable candidates for CMOS-compatible EO devices.

DOI： 10.35848/1347-4065/ac087d

Controlled colossal polarization originating in the Li-ion conductor–dielectric interface 査読

その他リンク： https://iopscience.iop.org/article/10.35848/1347-4065/ac087d/pdf

Ultrafast charge transfer at the electrode−electrolyte interface via an artificial dielectric layer 査読

Takashi Teranishi, Kaisei Kozai, Sou Yasuhara, Shintaro Yasui, Naoyuki Ishida, Kunihiro Ishida, Masanobu Nakayama, Akira Kishimoto

Journal of Power Sources 494 229710 - 229710 2021年5月

Takashi Teranishi, Yuki Nishikori, Mika Yoneda, Akira Kishimoto

Japanese Journal of Applied Physics 60 ( 4 ) 040905 - 040905 2021年4月

Temporary reinforcement of ceria-based ceramics using chemical expansion and concomitant change in electrical properties 査読

Akira Kishimoto, Naoya Ohmoto, Takashi Teranishi

Materials Letters 270 127712 - 127712 2020年7月

Influence of Reduction Annealing on the Characteristics of CeO₂ – YSZ Based Oxide Ceramics 査読

Taiga UMEMURA, Takashi TERANISHI, Akira KISHIMOTO

Journal of the Japan Society of Powder and Powder Metallurgy 67 ( 3 ) 163 - 166 2020年3月

Domain contribution to the aging characteristics in BaTiO3 ceramics 査読

Takashi Teranishi, Seiichiro Azuma, Akira Kishimoto

Japanese Journal of Applied Physics 58 ( SL ) SLLC03 - SLLC03 2019年11月

Exploring of Novel Functions in Ceramics Utilizing Some Selective Improvements of Ion Movement under Millimeter-wave Irradiation 査読

Akira KISHIMOTO

Journal of the Japan Society of Powder and Powder Metallurgy 66 ( 2 ) 73 - 79 2019年2月

Utilizing Rice Husk for Ceramic and Glass Foams as Matrix and Foaming Agent 査読

Chiaki MATSUOKA, Takashi TERANISHI, Hidetaka HAYASHI, Akira KISHIMOTO

Journal of the Japan Society of Powder and Powder Metallurgy 65 ( 8 ) 475 - 480 2018年8月

Aluminum Interdiffusion into LiCoO2 Using Atomic Layer Deposition for High Rate Lithium Ion Batteries 査読

Takashi Teranishi, Yumi Yoshikawa, Mika Yoneda, Akira Kishimoto, Jennifer Halpin, Shane O’Brien, Mircea Modreanu, Ian M. Povey

ACS Applied Energy Materials 1 ( 7 ) 3277 - 3282 2018年7月

Low‐Temperature High‐Rate Capabilities of Lithium Batteries via Polarization‐Assisted Ion Pathways 査読

Takashi Teranishi, Naoto Katsuji, Keisuke Chajima, Sou Yasuhara, Masahiro Inohara, Yumi Yoshikawa, Shintaro Yasui, Hidetaka Hayashi, Akira Kishimoto, Mitsuru Itoh

Advanced Electronic Materials 4 ( 4 ) 1700413 2018年4月

Domain engineering enhanced microwave tunability in nonstoichiometric Ba0.8 Sr0.2 TiO3 査読

Takashi Teranishi, Koji Osaki, Hidetaka Hayashi, Akira Kishimoto

Journal of the American Ceramic Society 101 ( 2 ) 723 - 731 2018年2月

Synthesis of nano-crystalline LiNbO3-decorated LiCoO2 and resulting high-rate capabilities 査読

Teranishi Takashi, Inohara Masahiro, Kano Jun, Hayashi Hidetaka, Kishimoto Akira, Yoda Koji, Motobayashi Hidefumi, Tasaki Yuzo

SOLID STATE IONICS 314 57 - 60 2018年1月

Millimeter-wave irradiation heating for operation of doped CeO 2 electrolyte-supported single solid oxide fuel cell 査読

Salmie Suhana Binti Che Abdullah, Takashi Teranishi, Hidetaka Hayashi, Akira Kishimoto

Journal of Power Sources 374 92 - 96 2018年1月

Effect of Millimeter-wave Irradiation Heating on the Ionic Conductivity of LaGaO₃ Based Ceramics 査読

Yume KUDO, Yuri FUJII, Hideki HASUNUMA, Takashi TERANISHI, Hidetaka HAYASHI, Akira KISHIMOTO

Journal of the Japan Society of Powder and Powder Metallurgy 65 ( 1 ) 21 - 25 2018年

Loading effect of a barium titanate artificial interface on high voltage capabilities at high charge and discharge rates 査読

Yumi Yoshikawa, Takashi Teranishi, Hidetaka Hayashi, Akira Kishimoto

JAPANESE JOURNAL OF APPLIED PHYSICS 56 ( 10 ) 4950 - 4959 2017年10月

Electrodeposition of Ni-Al（OH）₃ Composite Films from NO₃^－ Containing Non-Suspended Bath 査読

Toru ASANO, Hidetaka HAYASHI, Takashi TERANISHI, Akira KISHIMOTO, Kazuya ISHII

Journal of The Surface Finishing Society of Japan 68 ( 7 ) 401 - 404 2017年7月

Polarization behavior of sol-gel-derived relaxor Ba(Zr, Ti)O3 films 査読

Takashi Teranishi, Shin Kajiyama, Hidetaka Hayashi, Akira Kishimoto

Journal of the American Ceramic Society 100 ( 4 ) 1542 - 1550 2017年4月

Effect of the (Ba plus Sr)/Ti ratio on the microwave-tunable properties of Ba0.6Sr0.4TiO3 ceramics 査読

Takashi Teranishi, Riku Kanemoto, Hidetaka Hayashi, Akira Kishimoto

JOURNAL OF THE AMERICAN CERAMIC SOCIETY 100 ( 3 ) 1037 - 1043 2017年3月

Enhanced electrical conductivity of doped CeO2 under millimeter-wave irradiation heating 査読

Salmie Suhana Binti Che Abdullah, Takashi Teranishi, Hidetaka Hayashi, Akira Kishimoto

MATERIALS & DESIGN 115 231 - 237 2017年2月

Rate characteristics of barium titanata-lithium cobaltate composites investigated at voltages reaching 4.9V 査読

Yumi Yoshikawa, Takashi Teranishi, Hidetaka Hayashi, Akira Kishimoto

Japanese Journal of Applied Physics 56 10PC01 2017年

Performance improvement of a high-temperature stress sensor incorporated with flat pores through a solid state foaming method 査読

Yuuki Takamuro, Takashi Teranishi, Hidetaka Hayashi, Akira Kishimoto

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, journal of the japan society of powder and powder metallurgy, Journal of the Japan Society of Powder and Powder Metallurgy 64 ( 2 ) 68 - 72 2017年

Relationship between thermal environment and conductivity enhancement under millimeter-wave irradiation heating of zirconia ceramics 査読

Akira Kishimoto, Koyo Shimoyama, Takashi Teranishi, Hidetaka Hayashi

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 125 ( 10 ) 717 - 720 2017年

High rate capability of a BaTiO3-decorated LiCoO2 cathode prepared via metal organic decomposition 査読

Takashi Teranishi, Naoto Katsuji, Yumi Yoshikawa, Mika Yoneda, Hidetaka Hayashi, Akira Kishimoto, Koji Yoda, Hidefumi Motobayashi, Yuzo Tasaki

JAPANESE JOURNAL OF APPLIED PHYSICS 55 ( 10 ) 2016年10月

Influence of PMSA-based polymer on the settling velocity of CNT in Aqueous Media 査読

Naoyuki Nishimura, Shin-Ichi Takeda, Takashi Teranishi, Hidetaka Hayashi, Naoto Saito, Akira Kishimoto

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy 63 ( 10 ) 861 - 865 2016年9月

High rate capability of a BaTiO

Teranishi Takashi, Katsuji Naoto, Yoshikawa Yumi, Yoneda Mika, Hayashi Hidetaka, Kishimoto Akira, Yoda Koji, Motobayashi Hidefumi, Tasaki Yuzo

Jpn. J. Appl. Phys. 55 ( 10 ) 10TB01 2016年8月

記述言語：英語出版者・発行元：Institute of Physics

Metal organic decomposition (MOD) using octylic acid salts was applied to synthesize a BaTiO<inf>3</inf>–LiCoO<inf>2</inf>(BT–LC) composite powder. The Ba and Ti octylates were utilized as metal precursors, in an attempt to synthesize homogeneous BT nanoparticles on the LC matrix. The BT–LC composite, having a phase-separated composite structure without any impurity phase, was successfully obtained by optimizing the MOD procedure. The composite prepared using octylate precursors exhibited a sharper distribution and better dispersibility of decorated BT particles. Additionally, the average particle size of the decorated BTs using metal octylate was reduced to 23.3 nm, compared to 44.4 nm from conventional processes using Ba acetate as well as Ti alkoxide as precursors. The composite cathode displayed better cell performance than its conventional counterpart; the discharge capacity of the metal octylate-derived specimen was 55.6 mAh/g at a 50C rate, corresponding to 173% of the capacity of the conventional specimen (32.2 mAh/g). The notable improvement in high rate capability obtained in this study, compared with the conventional route, was attributed to the higher density of the triple junction formed by the BT–LC–electrolyte interface.

DOI： 10.7567/JJAP.55.10TB01

Grain size-sensitive viscoelastic relaxation and seismic properties of polycrystalline MgO 査読

A. Barnhoorn, I. Jackson, J. D. Fitz Gerald, A. Kishimoto, K. Itatani

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 121 ( 7 ) 4955 - 4976 2016年7月

Gastight, closed pore inclusive porous ceramics through a superplastically foaming method 査読

Akira Kishimoto, Atsuki Tohji, Takashi Teranishi, Hidetaka Hayashi

Ceramic for Environmental Systems 257 69 - 79 2016年5月

Lithium ion conductivity of oriented Li0.33La0.56TiO3 solid electrolyte films prepared by a sol-gel process 査読

Takashi Teranishi, Yuki Ishii, Hidetaka Hayashi, Akira Kishimoto

SOLID STATE IONICS 284 1 - 6 2016年1月

Electrical conductivity of ceria-based oxide under 24 GHz millimeter-wave heating in varying thermal environments 査読

Salmie. S.C. Abdulla, T. Teranishi, H. Hayashi, A. Kishimoto

J. Jpn. Soc. Powder Powder Metallurgy 63 ( 7 ) 663 - 667 2016年

担当区分：最終著者,　責任著者記述言語：英語出版者・発行元：一般社団法人粉体粉末冶金協会

<p>Sm-doped CeO₂ ceramics were prepared by conventional solid state method. The electrical conductivity of the samples was measured under conventional heating and 24 GHz millimeter-wave (MMW) heating, and the results were compared. During MMW heating, 5 mol% Sm-doped CeO₂ pellets with different thickness were used as susceptors, meanwhile Al₂O₃ fiber board was used as thermal insulator and its design varies by the number of open channels. The aforementioned susceptors and thermal insulators dependency of conductivity values during MMW heating were studied. Conductivity of samples under MMW heating was found to be higher than under conventional heating. Results showed that the different susceptor thickness and thermal insulator design could result in different conductivity values. These results were attributed to the phenomenon of heat dissipation from surface and the amount of direct radiation reached the sample. Specific susceptor thickness and specific insulator design which leads to highest conductivity were identified. By combining these two effects, the largest enhancement of conductivity of ceria based ceramics was obtained.</p>

DOI： 10.2497/jjspm.63.663

In situ time-resolved dispersive X-ray absorption fine structure analysis of BaTiO₃–LiCoO₂ composites for lithium ion batteries 査読

Takashi TERANISHI, Yumi YOSHIKAWA, Ryota MIYAHARA, Hidetaka HAYASHI, Akira KISHIMOTO, Misaki KATAYAMA, Yasuhiro INADA

Journal of the Ceramic Society of Japan 124 ( 6 ) 659 - 663 2016年

Influence of Millimeter-wave Irradiation on the Cation Interdiffusion of Ceria/Zirconia Ceramic Couple 査読

Mikiya WAKIMOTO, Takashi TERANISHI, Hidetaka HAYASHI, Akira KISHIMOTO

63 ( 11 ) 981 - 985 2016年

Influence of PMSA-Based Polymer on the Settling Velocity of CNT in Aqueous Media 査読

Naoyuki Nishimura, Shin-ichi Takeda, Takashi Teranishi, Hidetaka Hayashi, Naoto Saito, Akira Kishimoto

MATERIALS TRANSACTIONS 56 ( 12 ) 2006 - 2009 2015年12月

Stabilisation dopant-dependent facilitation in ionic conductivity on millimeter-wave irradiation heating of zirconia-based ceramics 査読

Akira Kishimoto, Hideki Hasunuma, Takashi Teranishi, Hidetaka Hayashi

JOURNAL OF ALLOYS AND COMPOUNDS 648 740 - 744 2015年11月

In situ impedance analysis on BaTiO3-LiCoO2 composite cathodes for lithium ion batteries 査読

Takashi Teranishi, Yumi Yoshikawa, Ryo Sakuma, Hirokazu Okamura, Hidetaka Hayashi, Akira Kishimoto, Yasuo Takeda

JAPANESE JOURNAL OF APPLIED PHYSICS 54 ( 10 ) 2015年10月

Effect of 24 GHz microwave heating on creep deformation of yttria partially stabilised zirconia ceramics with titania and tin oxide additives 査読

Akira Kishimoto, Kyohei Yamashita, Takashi Teranishi, Hidetaka Hayashi, Saburo Sano

CERAMICS INTERNATIONAL 41 ( 4 ) 5785 - 5789 2015年5月

High-Rate Capabilities of Ferroelectric BaTiO3-LiCoO2 Composites with Optimized BaTiO3 Loading for Li-Ion Batteries 査読

Takashi Teranishi, Yumi Yoshikawa, Ryo Sakuma, Hirokazu Okamura, Hideki Hashimoto, Hidetaka Hayashi, Tatsuo Fujii, Akira Kishimoto, Yasuo Takeda

ECS ELECTROCHEMISTRY LETTERS 4 ( 12 ) A137 - A140 2015年

Effect of Mg Loading on the High-frequency Tunability of Ba0.8Sr0.2TiO3 Ceramics

Takashi Teranishi, Tsuyoshi Sogabe, Hidetaka Hayashi, Akira Kishimoto, Kengo Iokibe, Yoshitaka Toyota

Japanese Journal of Applied Physics 54 ( 1 ) 11502-1-011502-6 - 11502 2015年

記述言語：英語出版者・発行元：Institute of Physics

The effect of Mg loading on the high-frequency tunable properties and dielectric loss of Ba<inf>0.8</inf>Sr<inf>0.2</inf>Ti<inf>1−</inf><inf>x</inf>Mg<inf>x</inf>O<inf>3</inf>(BSTM) ceramics was investigated. Variation in the lattice parameters and the 90° domain configuration with Mg loading indicated a decrease in the tetragonal distortion. Additionally, the 90° domain size decreased slightly with a low Mg loading, up to 0.1 mol %, resulting in a higher domain-wall density compared with the non-doped specimen. The 0.075 mol % Mg-loaded BSTM ceramic exhibited the highest tunability; this was attributed to the domain-size effect. The loss tangent (tan δ) roughly decreased with Mg loading, due to loaded oxygen vacancies. The maximum figure of merit value (FOM = tunability/tan δ) at 10 MHz was achieved for the 0.075 mol % Mg specimen, twice that of the non-doped specimen, due to an increase in the tunability and a decrease in the loss tangent with Mg loading.

DOI： 10.7567/JJAP.54.011502

Microwave Absorbency Change of Nitride Powders under Vacuum Heating 査読

Dependence of the conductivity of polycrystalline Li0.33BaxLa0.56-2/3xTiO3 on Ba loading 査読

Takashi Teranishi, Akane Kouchi, Hidetaka Hayashi, Akira Kishimoto

SOLID STATE IONICS 263 33 - 38 2014年10月

High-rate performance of ferroelectric BaTiO3-coated LiCoO2 for Li-ion batteries 査読

Takashi Teranishi, Yumi Yoshikawa, Ryo Sakuma, Hideki Hashimoto, Hidetaka Hayashi, Akira Kishimoto, Tatsuo Fujii

APPLIED PHYSICS LETTERS 105 ( 14 ) 2014年10月

Saburo Sano, Sadatsugu Takayama, Akira Kishimoto

Advances in Science and Technology 88 31 - 36 2014年10月

掲載種別：研究論文（学術雑誌）出版者・発行元：Trans Tech Publications, Ltd.

We measured the microwave and millimeter-wave behaviors of ceramics and metal powders as a basis for developing microwave and millimeter-wave heating technology. In this study, nitride powders were subjected to microwave absorption measurements at elevated temperature. These measurements were performed using a system comprising a vector network analyzer, a circular wave-guide fixture, and a vacuum furnace. The sample’s microwave absorbency was evaluated by the change in reflection power from the sample in the circular wave-guide fixture under vacuum heating. Measurements were performed at approximately 24 GHz and at temperature up to approximately 1100°C. Boron nitride (BN) exhibited almost no absorption of microwaves up to 1100°C, similar to the results of a low-loss oxide powder such as alumina. Dichromium mononitride (Cr2N) powder exhibited a rather high absorption of microwaves at room temperature. During vacuum heating, absorbency of Cr2N started to decrease at 300°C, and became almost zero at temperature greater than 600°C, similar to the behavior of iron powder. This result indicated that roughly packed Cr2N powder absorbs microwave radiation; however, during vacuum heating, the compact body was sintered and the whole sample body became a reflector of microwaves. This change was irreversible, and the sample maintained its reflection behavior upon the cooling. When a mixed powder of Cr2N (20 mass%) and Al2O3 was heated under vacuum, the compact sample exhibited microwave absorption that increased with increasing temperature. This change was reversible upon cooling. These results indicated that the mixed powder did not become reflector of microwaves; Cr2N particles were not electrically connected each other because the Al2O3 particles kept the Cr2N particles separate during the vacuum heating process.

DOI： 10.4028/www.scientific.net/ast.88.31

Superplastically foaming method for inclusion of closed pores in fully densified ceramics 査読

The isothermal conductivity improvement in zirconia-based ceramics under 24 GHz microwave heating 査読

Akira Kishimoto, Keiko Ayano, Takashi Teranishi, Hidetaka Hayashi

MATERIALS CHEMISTRY AND PHYSICS 143 ( 2 ) 486 - 489 2014年1月

Relationship Between Phonon Parameters and Oxygen Ion Conductivity for Al-Yb Co-doped Zirconia 査読

Takashi Teranishi, Nami Matsubara, Hidetaka Hayashi, Akira Kishimoto

ELECTROCERAMICS IN JAPAN XVI 582 107 - 110 2014年

Maintaining the mechanical strength of La-, Y-co-substituted zirconia porous ceramics through the superplastically foaming method 査読

Akira Kishimoto, Masanori Okada, Takashi Teranishi, Hidetaka Hayashi

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 581 98 - 103 2013年10月

Thermoelectric efficiency of reduced SrTiO 3 ceramics modified with la and Nb 査読

Takashi Teranishi, Yusuke Ishikawa, Hidetaka Hayashi, Akira Kishimoto, Misaki Katayama, Yasuhiro Inada

Journal of the American Ceramic Society 96 ( 9 ) 2852 - 2856 2013年9月

Ferroelectric Domain Contribution to the Tunability of Ba0.8Sr0.2TiO3 Ceramics 査読

Takashi Teranishi, Tsuyoshi Sogabe, Hidetaka Hayashi, Akira Kishimoto, Kazuhiro Fujimori

JAPANESE JOURNAL OF APPLIED PHYSICS 52 ( 9 ) 2013年9月

Lithium ion conductivity of Nd-doped (Li, La)TiO3 ceramics 査読

Takashi Teranishi, Michihiro Yamamoto, Hidetaka Hayashi, Akira Kishimoto

SOLID STATE IONICS 243 18 - 21 2013年7月

Effect of millimeter-wave irradiation on cation interdiffusion in the calcium titanate/strontium titanate ceramic couple 査読

Akira Kishimoto, Yukari Kamakura, Takashi Teranishi, Hidetaka Hayashi

MATERIALS CHEMISTRY AND PHYSICS 139 ( 2-3 ) 825 - 829 2013年5月

SUPERPLASTICALLY FOAMING METHOD FOR RELIABLE POROUS CERAMICS 査読

Akira Kishimoto, Takahiro Nakagawa, Takashi Teranishi, Hidetaka Hayashi

SUPERPLASTICITY IN ADVANCED MATERIALS 735 109 - 112 2013年

Akira KISHIMOTO

Journal of the Ceramic Society of Japan 121 ( 1415 ) 527 - 533 2013年

Microscopic Conduction Behavior Analysis on ZrO2-based Ion Conductors by Wideband Conductivity Measurement 査読

Takashi Teranishi, Kosuke Shimizu, Hidetaka Hayashi, Akira Kishimoto

ELECTROCERAMICS IN JAPAN XV 566 141 - 144 2013年

Quasi-millimeter-wave absorption behavior in Y/Yb-stabilized zirconia ceramics 査読

Takashi Teranishi, Naoki Akiyama, Keiko Ayano, Hidetaka Hayashi, Akira Kishimoto, Kazuhiro Fujimori, Takuya Hoshina, Hiroaki Takeda, Takaaki Tsurumi

APPLIED PHYSICS LETTERS 100 ( 24 ) 2012年6月

Synthesis of organic/inorganic hybrid composite membranes and their structural and conductivity properties 査読

Uma Thanganathan, Suresh Kumar, Akira Kishimoto, Kunio Kimura

Materials Letters 72 81 - 87 2012年4月

Thermoelectric Property of Polycrystalline Aluminum-Doped Zinc Oxide Enhanced by Micropore Foaming 査読

Takashi Teranishi, Yosuke Mori, Hidetaka Hayashi, Akira Kishimoto

JOURNAL OF THE AMERICAN CERAMIC SOCIETY 95 ( 2 ) 690 - 695 2012年2月

Fabrication of a helical tubular pore in YSZ ceramics by the superplastically foaming method 査読

Masanori Okada, Takashi Teranishi, Hidetaka Hayashi, Akira Kishimoto

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy 59 ( 2 ) 90 - 94 2012年2月

Broadband spectroscopy of the complex conductivity of polycrystalline yttria-stabilized zirconia 査読

Takashi Teranishi, Hidetaka Hayashi, Akira Kishimoto, Takaaki Tsurumi

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS 177 ( 1 ) 69 - 73 2012年1月

Effect of reducing atmosphere on AIN ceramics sintered by millimerter Wave-HIP combined sintering 査読

Kyohei Yamashita, Yoshihisa Kogo, Takashi Teranishi, Hidetaka Hayashi, Akira Kishimoto

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy 59 ( 1 ) 17 - 21 2012年1月

Complex Conductivity Using Wideband Spectroscopy for Yttria/Ytterbia-Stabilized Zirconia Ceramics 査読

Takashi Teranishi, Kosuke Shimizu, Naoki Akiyama, Hidetaka Hayashi, Akira Kishimoto, Kazuhiro Fujimori

JAPANESE JOURNAL OF APPLIED PHYSICS 51 ( 1 ) 2012年1月

Effect of Metal Ions in Electrolyte on Organic Composite Electrodeposition 査読

Kazuya ISHII, Takashi DOI, Masanari KIMOTO, Hidetaka HAYASHI, Akira KISHIMOTO

63 ( 10 ) 651 - 653 2012年

Effect of varying the ratio of matrix/dispersoid particle size on the piezoresistivity of alumina/carbon-black composite ceramics 査読

Akira Kishimoto, Yuto Takagawa, Takashi Teranishi, Hidetaka Hayashi

MATERIALS LETTERS 65 ( 14 ) 2197 - 2200 2011年7月

Enhancement of ionic conductivity in stabilized zirconia ceramics under millimeter-wave irradiation heating 査読

Akira Kishimoto, Keiko Ayano, Hidetaka Hayashi

SCRIPTA MATERIALIA 64 ( 9 ) 860 - 863 2011年5月

Millimeter wave-HIP combined sintering of AIN ceramics and their thermal conductivity 査読

Syunsuke Ohura, Hidetaka Hayashi, Akira Kishimoto

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy 58 ( 1 ) 57 - 62 2011年1月

Formation of 3D tubular cannel in fully densified zirconia ceramics by free-foaming method using superplasticity 査読

T. I. Bhuiyan, H. Hayashi, A. Kishimoto

CERAMICS INTERNATIONAL 37 ( 1 ) 399 - 402 2011年1月

Superplastically foaming method to make closed pores inclusive porous ceramics 査読

Akira Kishimoto, Hidetaka Hayashi

IOP Conference Series: Materials Science and Engineering 18 ( 12 ) 2011年

Tribological properties and oxidation resistance of (Cr,Al,Y)N and (Cr,Al,Si)N films synthesized by radio-frequency magnetron sputtering method 査読

T. Miyake, A. Kishimoto, H. Hasegawa

Surface and Coatings Technology 205 S290 - S294 2010年12月

Alumina based low permittivity substrate utilizing superplastically foaming method 査読

Miyo Wakiyama, Hidetaka Hayashi, Akira Kishimoto

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 118 ( 1383 ) 1090 - 1093 2010年11月

The control of mechanical strength by an electric field in ceramic composites dispersed with piezoelectric particles 査読

Akira Kishimoto

Journal of Electroceramics 24 ( 2 ) 115 - 121 2010年4月

Millimeter wave sintering of AlN ceramics for heat sink application 査読

Akira Kishimoto, Tetsuya Morimoto, Hidetaka Hayashi

ASIAN CERAMIC SCIENCE FOR ELECTRONICS III AND ELECTROCERAMICS IN JAPAN XII 421-422 533 - 536 2010年

PATTERNING OF CLOSED PORES UTILIZING THE SUPERPLASTICALLY FOAMING METHOD 査読

A. Kishimoto, Y. Nishino, H. Hayashi

INNOVATIVE PROCESSING AND MANUFACTURING OF ADVANCED CERAMICS AND COMPOSITES 212 143 - 151 2010年

Mechanical Properties of Metallic Perovskite Mn3Cu0.5Ge0.5N:High-Stiffness Isotropic Negative Thermal Expansion Material 査読

Yoshinobu Nakamura, Koshi Takenaka, Akira Kishimoto, Hidenori Takagi

JOURNAL OF THE AMERICAN CERAMIC SOCIETY 92 ( 12 ) 2999 - 3003 2009年12月

Applicability of nitride powders as foaming agents in superplastically foamed ceramics 査読

Hiroshi Yamaoka, Hidetaka Hayashi, Akira Kishimoto

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 117 ( 1371 ) 1233 - 1235 2009年11月

Fabrication of closed-pore inclusive low-permittivity substrates insensitive to ambient humidity 査読

Miyo Wakiyama, Kiminori Waku, Hidetaka Hayashi, Akira Kishimoto

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 117 ( 1369 ) 1013 - 1016 2009年9月

Morphology Change of Silver Deposit from BMITFSI Ionic Liquid 査読

Tomomi Murakami, Yoshihisa Kogo, Kiminori Waku, Hidetaka Hayashi, Akira Kishimoto

ELECTROCHEMISTRY 77 ( 8 ) 645 - 646 2009年8月

Piezoresistivity of magnesia-graphite composite ceramics 査読

Kiminori Waku, Shuuhei Tagya, Hidetaka Hayashi, Akira Kishimoto

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 117 ( 1367 ) 793 - 796 2009年7月

Influence of processing parameters on the closed pore patterns utilizing the superplastisically foaming method 査読

西野祐輔, 林秀考, 岸本昭

粉体および粉末冶金 56 ( 6 ) 389 - 394 2009年6月

Mechanical and electrical properties of superplastically foamed titania-based ceramics 査読

Akira Kishimoto, Mako Obata, Kiminori Waku, Hidetaka Hayashi

CERAMICS INTERNATIONAL 35 ( 4 ) 1441 - 1445 2009年5月

Alumina-based monofoams utilizing superplastic deformation facilitated by the addition of magnesia or magnesium aluminate spinel 査読

Mako Obata, Hidetaka Hayashi, Akira Kishimoto

JOURNAL OF ALLOYS AND COMPOUNDS 471 ( 1-2 ) L32 - L35 2009年3月

Improvement in the Specific Strength by Arranging Closed Pores in Fully Densified Zirconia Ceramics 査読

Akira Kishimoto, Masaaki Hanao, Hidetaka Hayashi

ADVANCED ENGINEERING MATERIALS 11 ( 1-2 ) 96 - 100 2009年1月

Resistivity of Alumina-Graphite Composite Ceramics 査読

Kiminori Waku, Hidetaka Hayashi, Akira Kishimoto

JOURNAL OF THE AMERICAN CERAMIC SOCIETY 91 ( 12 ) 4168 - 4170 2008年12月

The mechanical and thermal properties of porous zirconia ceramics fabricated through a solid-state foaming method 査読

Masaaki Hanao, Hidetaka Hayashi, Akira Kishimoto

Journal of the Japan Society of Powder and Powder Metallurgy 55 ( 10 ) 732 - 737 2008年10月

Improvement of piezoresistance properties of silicon carbide ceramics through co-doping of aluminum nitride and nitrogen 査読

Akira Kishimoto, Yasuyuki Okada, Hidetaka Hayashi

CERAMICS INTERNATIONAL 34 ( 4 ) 845 - 848 2008年5月

Anomalous grain growth during hot isostatic pressing of magnesia ceramics made from starting powders with different coarse/fine mixing ratios 査読

Akira Kishimoto, Masaaki Hanao, Hidetaka Hayashi

SCRIPTA MATERIALIA 57 ( 4 ) 321 - 324 2007年8月

Solid state foaming and free-forming of closed pore utilizing the superplasticity of zirconia ceramics 査読

A. Kishimoto, T. Higashiwada, M. Takahara, H. Hayashi

ECO-MATERIALS PROCESSING AND DESIGN VIII 544-545 641 - + 2007年

Effect of additives on the pore evolution of zirconia based ceramic foams after sintering 査読

Tsuyoshi Higashiwada, Hiroshi Asaoka, Hidetaka Hayashi, Akira Kishimoto

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 27 ( 5 ) 2217 - 2222 2007年

Fabrication of alumina-based ceramic foams utilizing superplasticity 査読

Akira Kishimoto, Mako Obata, Hiroshi Asaoka, Hidetaka Hayashi

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 27 ( 1 ) 41 - 45 2007年

High temperature piezoresistance properties of 6H-SiC ceramics doped with trivalent elements

Akira Kishimoto, Daisuke Mutaguchi, Hidetaka Hayashi, Yoshimitsu Numata

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY 135 ( 2 ) 145 - 149 2006年11月

Influence of the kinds of aluminum source on the preferential orientation and properties of Na beta-alumina ceramics

Hiroshi Asaoka, Rie Ogawa, Hidetaka Hayashi, Akira Kishimoto

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 114 ( 1332 ) 719 - 721 2006年8月

The exploitation of superplasticity in the successful foaming of ceramics after sintering

Akira Kishimoto, Tsuyoshi Higashiwada, Hiroshi Asaoka, Hidetaka Hayashi

ADVANCED ENGINEERING MATERIALS 8 ( 8 ) 708 - 711 2006年8月

Using ion exchange to control the mechanical strength of Naβ-alumina ceramics

A. Kishimoto, M. Morita, H. Asaoka, H. Hayashi

Solid State Ionics 177 ( 9-10 ) 949 - 953 2006年3月

High-voltage screening on thermally shocked titania ceramics

A Kishimoto, C Ogata, M Obata, H Hayashi

JOURNAL OF THE AMERICAN CERAMIC SOCIETY 89 ( 1 ) 361 - 363 2006年1月

Influence of the kinds of aluminum source on the preferential orientation and properties of Naß-alumina ceramics

H. Asaoka, R. Ogawa, H. Hayashi, A. Kishimoto

J. Ceram. Soc. Jpn. 114 ( 8 ) 701 - 703 2006年

回転リングディスク電極を用いた界面ｐH測定とそのNi-Al(OH)3複合めっきへの適用

林秀考, 見津正一, 岸本昭

表面技術 57 ( 8 ) 597 - 600 2006年

記述言語：日本語出版者・発行元：The Surface Finishing Society of Japan

The interfacial pH during Ni plating from the Watts bath was measured by using a rotating ring disk electrode system where the Sb-plated ring electrode acts as a pH sensor. It was clarified that a linear relationship exists between the electrode potential of the Sb-plated ring electrode and the pH in the range from 2.0 to 6.5 and was also clarified that the Sb-plated rotating ring electrode could be used as a pH sensor for the electroplating process in these pH ranges. The Ni-Al(OH)₃ composite film was electrodeposited by controlling current density under certain conditions, while the rise of interfacial pH during the plating process was estimated from the in situ pH measurement described above. The results of the SEM/EDX observations showed that minute particles, probably aluminum hydroxide, could be deposited with nickel from Al³⁺ contained in a non-turbid Watts bath under certain conditions determined by the interfacial pH measurement described herein.<br>

DOI： 10.4139/sfj.57.597

配向性Naβ-アルミナセラミックスの作製と力学特性及び電気特性評価(<特集>セラミックスインテグレーション)

その他リンク： https://jlc.jst.go.jp/DN/JALC/00283174269?from=CiNii

Thermal and optical properties of transparent magnesium oxide ceramics fabricated by post hot-isostatic pressing

K Itatani, T Tsujimoto, A Kishimoto

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 26 ( 4-5 ) 639 - 645 2006年

Preferential orientation dependent mechanical and electrical properties in Naβ-alumina ceramics

A. Kishimoto, K. Shimokawa

Key. Eng. Mat. 301 147 - 150 2006年

Ⅲ族元素および窒素を共添加した炭化珪素セラミックスのピエゾ抵抗効果

岸本昭, 岡田泰行, 牟田口大輔, 林秀考

粉体および粉末冶金 52 ( 10 ) 753 - 756 2005年10月

構造を制御した金属／グラファイト粒子複合皮膜の電析

林秀考, 武田大輔, 岸本昭

粉体および粉末冶金 52 ( 8 ) 619 - 623 2005年8月

Strain-Dependent Electrical Conduction in the System NiO-CaO

Yoshinobu Nakamura, Hiroshi Ogawa, Tetsuya Nakashima, Akira Kishimoto, Hiroaki Yanagida

Journal of the American Ceramic Society 80 ( 6 ) 1609 - 1611 2005年1月

Nonlinear Current-Voltage Characteristics with Negative Resistance Observed at ZnO-ZnO Single-Contacts

Yoshinobu Nakamura, Takeshi Harada, Hitoshi Kuribara, Akira Kishimoto, Naobumi Motohira, Hiroaki Yanagida

Journal of the American Ceramic Society 82 ( 11 ) 3069 - 3074 2004年12月

Change in mechanical strength of barium titanate dispersed composite on polarization treatment

A Kishimoto, S Seo

ELECTROCERAMICS IN JAPAN VII 269 15 - 18 2004年

Effect of B, Al or Ga on the piezoresistance properties of 6H-SiC ceramics sintered with carbon

A. Kishimoto, Y. Numata

J. Ceram. Soc. Jpn. 112 ( 5 ) 1402 - 1404 2004年

Dispersion Toughening of Ion Conductive Zirconia Ceramics

A. Kishimoto

RECENT RESEARCH DEVELOPMENTS IN SOLID STATE IONICS 2 113 - 123 2004年

Non-contact measurement of acoustic emission in thin specimen by laser interferometer

M Enoki, S Nishinoiri, T Seki, A Kishimoto

ADVANCES IN NONDESTRUCTIVE EVALUATION, PT 1-3 270-273 485 - 490 2004年

Effect of sodium content on mechanical and electrical properties of preferentially oriented Naβ-alumina ceramics

A. Kishimoto, K. Shimokawa, S. J. Jung

J. Mat. Sci. Lett. 22 ( 15 ) 1083 - 1085 2003年8月

Effect of alumina addition on microwave sintered ionic conductive zirconia

A. Kishimoto, Y. Masuda, S. Fujitsu

Trans. MRS-J 28 ( 4 ) 1227 - 1230 2003年

Effect of electric field on creep behavior of dispersion strengthened ion conductive zirconia ceramics

A. Kishimoto, H. Deguchi, S. Hirano, Y. Nakamura

Trans. MRS-J 28 ( 4 ) 1231 - 1234 2003年

下川幸正, 岸本昭

日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi 110 ( 1281 ) 376 - 378 2002年5月

記述言語：英語出版者・発行元：公益社団法人日本セラミックス協会

Naβ-alumina is a two-dimensional ionic conductor in which conducting planes of Na + ion are separated by insulating spinel block layers. For practical use, Naβ-alumina needs not only high ionic conductivity but also mechanical reliability. Therefore, we prepared preferentially oriented Naβ-alumina ceramics by hot pressing and evaluated the ionic conductivity and mechanical strength. The ionic conductivity perpendicular to the c-axis-oriented plane was five times higher than that parallel to c-axis. From the preferentially oriented Naβ-alumina ceramics three types of test pieces were cut for a three-point bending test. In one type of test piece, the longest side was parallel to the hot-pressing direction, while the longest sides were perpendicular to that direction in the other types of test pieces. The latter test pieces showed mechanical strength 1.5 times that of the former.

DOI： 10.2109/jcersj.110.376

Effect of Moisture Absorption on Piezoresistance of Conducting Polymer Composite Thin Films.

その他リンク： https://jlc.jst.go.jp/DN/JALC/00157079874?from=CiNii

Mechanical and electrical properties of preferentially oriented Naβ-alumina ceramics

K. Shimokawa, A. Kishimoto

J. Ceram. Soc. Jpn. 110 ( 5 ) 376 - 378 2002年5月

Piezoresistivity of Hi-Nicalon type-S silicon carbide-based fiber

A Kishimoto, G Toyoguchi, H Ichikawa

JOURNAL OF THE AMERICAN CERAMIC SOCIETY 85 ( 2 ) 479 - 480 2002年2月

Effect of aluminium addition on piezoresistance coefficient of beta-silicon carbide ceramics

豊口銀二郎, 岸本昭

J. Mat. Sci. Lett., 2002年

Mechanical and electrical properties of rare earth oxide doped zirconia ceramics

N. Nakamura, A. Kishimoto

Trans. MRS-J 27 ( 4 ) 715 - 718 2002年

Effect of electric field on crack propagation of ceramic composite dispersed with piezoelectric particle

J. Sato, A. Kishimoto

Trans. MRS-J 27 ( 4 ) 699 - 702 2002年

Precurrent and dielectric breakdown in titania ceramics - Critical current

T Arakawa, A Kishimoto

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 109 ( 10 ) 891 - 893 2001年10月

Microwave sintering of ion conductive zirconia based composite dispersed with alumina

A Kishimoto, M Ito, S Fujitsu

JOURNAL OF MATERIALS SCIENCE LETTERS 20 ( 10 ) 943 - 945 2001年5月

Polarization dependent mechanical strength of zirconia base composites dispersed with barium titanate

A Kishimoto, S Seo

JOURNAL OF MATERIALS SCIENCE LETTERS 20 ( 2 ) 97 - 99 2001年1月

Enhanced IR Sensitivity at the ZnO-ZnO single-junction

Y. Nakamura, T. Harada, A. Kishimoto

Trans. MRS-J 2001年

Strength control of a ceramic composite by electric field

A Kishimoto, S Seo

SMART MATERIALS 4234 321 - 327 2001年

EFFECT OF HIGH VOLTAGE SCREENING METHOD ON TITANIA CERAMICS WITH DIFFERENT SURFACE FINISHING

A. Kishimoto, T. Tanaka

Ceramic Materials and Components for Engines 229-232 2001年

Fabrication and Piezoresistive Effect of Silicon Carbide ceramics

G. Toyoguchi, A. Kishimoto

Trans. MRS-J 26 83 - 86 2001年

Effect of polarization treatment on bending strength of barium titanate/zirconia composite

S Seo, A Kishimoto

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 20 ( 14-15 ) 2427 - 2431 2000年12月

High-Voltage Screening of Unidirectionally Surface-Ground Titania Ceramics

Akira Kishimoto, Tomohiro Tanaka

Journal of the American Ceramic Society 83 ( 6 ) 1413 - 1416 2000年6月

A.: Role of the interface in the temperature dependence of the resistivity of conductive composite thin films

HIRANO S.

Jpn. J. Appl. Phys. 39 ( Part 1, No. 3A ) 1193 - 1199 2000年3月

High-voltage screening on titania ceramics with differently finished surfaces(共著)

J. Ceram. Soc. Jpn. 108 ( 9 ) 795 - 798 2000年

Piezoresistive property of pressureless sintered silicon carbide ceramics

TOYOGUCHI G.

Trans. MRS-J 25 ( 7 ) 645 - 648 2000年

Thermal shock resistance and creep behavior of dispersion strengthened ion conductive zirconia ceramics(共著)

Trans. MRS-J 25 ( 1 ) 269 - 272 2000年

Two-step varistor action observed at the homojunction made by the ZnO doped with CoO single crystals(共著)

Trans. MRS-J 25 ( 1 ) 265 - 268 2000年

In-situ monitoring of indentation fracture in semiconductive titania ceramics utilizing electric conduction

N. Sadotani, S. Hirano, A. Kishimoto

Journal of Materials Science Letters 19 ( 3 ) 221 - 223 2000年

Electric control of the chemical reaction in ceramic-ceramic contact interface - Modeling of the reaction scheme

Y Nakamura, Y Ariga, A Kishimoto, M Miyayama, O Okada, H Yanagida

JOURNAL OF ELECTROCERAMICS 4 105 - 112 1999年12月

Conductive coating on structural ceramics for strain detection utilizing electrical measurements

Shingo Hirano, Akira Kishimoto, Masaru Miyayama

Journal of the European Ceramic Society 19 ( 12 ) 2087 - 2095 1999年10月

Thermal-Electrical Breakdown of Disordered Conductor-Insulator Composites

Shingo Hirano, Akira Kishimoto

Japanese Journal of Applied Physics 38 ( Part 2, No. 6A/B ) L662 - L664 1999年6月

Estimation of pore size of porous materials by positron annihilation lifetime measurement

K Ito, Y Yagi, S Hirano, M Miyayama, T Kudo, A Kishimoto, Y Ujihira

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 107 ( 2 ) 123 - 127 1999年2月

Effects of alumina dispersion on ionic conduction of toughened zirconia base composite

A Yuzaki and A. Kishimoto

Solid State Ionics 116 ( 1-2 ) 47 - 51 1999年1月

Composition and Heating Rate Dependencies of Resistivity versus Temperature Behavior in Conductive Composite Thin Films

S. Hirano, A. Kishimoto

Key Eng. Mat. 157-1 87 - 90 1999年

Ceramic materials having Strain Sensing Properties-The CaO-NiO Ceramics-(共著)

Kor. J. Ceram. 5 ( 2 ) 165 - 170 1999年

Effects of high-voltage screening on mechanical strengths of titania ceramics measured through different methods

A. Kishimoto, K. Numazaki, Y. Nakamura

Journal of Materials Science Letters 18 ( 14 ) 1159 - 1161 1999年

Monitoring of indentation fracture and bending strain in alpha-SiC ceramics utilizing electrical response 査読

A Kishimoto, A Nakamichi, Y Nakamura

JOURNAL OF MATERIALS SCIENCE 34 ( 17 ) 4233 - 4237 1999年

Reliability improvement of titania ceramics with surface flaw through high voltage screening(共著)

Kor. J. Ceram. 5 ( 4 ) 386 - 389 1999年

Hirano Shingo, Kishimoto Akira, Miyayama Masaru

Japanese Journal of Applied Physics 37 ( Part 2, No. 10A ) L1158 - L1161 1998年10月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：公益社団法人応用物理学会

This paper is devoted to the study of the piezoresistance of conducting composite thin films consisting of epoxy resin and needle-like conductive fillers. The surface resistivity of the thin films at room temperature depended on filler volume fraction and relative humidity (rh). The effect of moisture absorption on the piezoresistance of the composite thin films was studied under various rh values. At high rh values, strain dependence of resistance was positive, and this positive coefficient decreased with decreasing rh value. At 30%rh, it became negative and its absolute value increased with decreasing rh. These results suggest that the piezoresistance effect of the conducting thin films is enhanced by moisture absorption by the epoxy matrix that is relatively hydrophilic. From these observations, the piezoresistance effect is considered to be based on the following two strains: one is derived from a mechanical stress and the other is due to environmental stress induced by moisture absorption.

DOI： 10.1143/jjap.37.l1158

Matrix-Dependent Percolation and Resistivity versus Temperature Behaviors of Conducting Composite Thin Films.

Hirano Shingo, Kishimoto Akira

Japanese Journal of Applied Physics 37 ( Part 2, No. 10A ) L1190 - L1192 1998年10月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：公益社団法人応用物理学会

The surface resistivity of crosslinked polymer matrix conductive ceramic filler composite thin films was studied as a function of composition and temperature. Epoxy resin and unsaturated polyester resin were selected as the insulating matrices. The resistivities of both thin films showed a percolative conduction, and the critical percolation threshold values of the filler weight fraction depended on the type of insulating polymer. The epoxy composite film exhibited a pronounced positive-temperature-coefficient-of-resistivity (PTCR) effect above the glass transition temperature of the matrix. In contrast, the unsaturated polyester composite did not show such an effect. To examine the nature of the percolation and the resistivity versus temperature behavior, the adhesive strength measurements and thermomechanical analysis were conducted on the matrix polymers. The results suggest that the percolation behavior and the occurrence of the PTCR effect in conductor-filled crosslinked polymer composites can be more precisely calculated by taking into account the thermomechanical interaction factor of the components.

DOI： 10.1143/jjap.37.l1190

ランタン及びガドリニウムを添加したBaTiO_3単結晶の育成とその電気的性質

Thermal history of alumina-toughened ionic conductive zirconia ceramics

A Yuzaki and A. Kishimoto

Solid State Ionics 109 ( 3-4 ) 273 - 277 1998年6月

Design and fabrication of a strength controllable ceramic composite

A Kishimoto, H Ishida, Y Nakamura

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 106 ( 5 ) 537 - 538 1998年5月

Improved Mechanical Properties of Ion Conductive Zirconia Ceramics

A. Kishimoto

Dynamics of Fast Ions in Solids and Its Evolution for Solid State Ionics ( 10 ) 257 - 262 1998年

Enhanced CO and CO2 gas sensitivity of the CuO/ZnO heterocontact made by quenched CuO ceramics

Yoshinobu Nakamura, Honxia Zhuang, Akira Kishimoto, Osamu Okada, Hiroaki Yanagida

Journal of the Electrochemical Society 145 ( 2 ) 632 - 638 1998年

Effect of heating rate on positive-temperature-coefficient-of-resistivity behavior of conductive composite thin films

S. Hirano, A. Kishimoto

Applied Physics Letters 73 ( 25 ) 3742 - 3744 1998年

IR Response to the Apparent Resistance of the Nonohmic ZnO-ZnO Homojunction(共著)

Jpn. Sensor Newsletter, Edison Sensor Technology Center ( 2 ) 30 - 34 1998年

PTCR Effect in Composite Conducting Polymer Films

Shingo Hirano, Akira Kishimoto, Masaru Miyayama

Journal of Materials Science Letters 17 ( 13 ) 1133 - 1135 1998年

Monitoring of indentation fracture in CuO ceramics utilizing an electrical method

Akihiro Nakamichi, Akira Kishimoto, Yoshinobu Nakamura, Hiroaki Yanagida

Journal of Materials Science Letters 17 ( 3 ) 249 - 251 1997年

Nonlinear current-voltage characteristics of Homojunctions made by zinc oxide single crystals(共著)

J. Mat. Res. Soc. 458 343 - 347 1997年

High Temperature Strain Sensor Using NiO-Ca0 Solid Solution(共著)

Jpn. Sensor Newsletter, Edison Sensor Technology Center 11 ( 2 ) 19 - 23 1997年

Comparison between the mechanical and dielectric strength distributions for hardened gypsum

Yoshinobu Nakamura, Mikito Suzuki, Naobumi Motohira, Akira Kishimoto, Hiroaki Yanagida

Journal of Materials Science 32 ( 1 ) 115 - 118 1997年

Toughening of ionic conductive zirconia ceramics utilizing a nonlinear effect 査読

KI Oe, K Kikkawa, A Kishimoto, Y Nakamura, H Yanagida

SOLID STATE IONICS 91 ( 1-2 ) 131 - 136 1996年10月

Strength distribution of titania ceramics after high-voltage screening 査読

A Kishimoto, K Endo, N Motohira, Y Nakamura, H Yanagida, M Miyayama

JOURNAL OF MATERIALS SCIENCE 31 ( 13 ) 3419 - 3425 1996年7月

Modified CuO surface appropriate for selective CO gas sensing at CuO/ZnO heterocontact

SJ Jung, Y Nakamura, A Kishimoto, H Yanagida

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 104 ( 5 ) 415 - 421 1996年5月

元平直文, 岡本英明, 中村吉伸, 岸本昭, 宮山勝, 柳田博明

日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi 104 ( 1208 ) 273 - 276 1996年4月

記述言語：日本語出版者・発行元：公益社団法人日本セラミックス協会

Single crystals of (Ba_<0.96-x>Ln_xSr_<0.04>)TiO_3 (Ln=La, Gd) were grown over a composition range of x=0.001 to 0.03. Electrical resistivities of the single crystals were measured by the DC four-probe method. The temperature dependence of resistivities of these crystals changed from semiconductive to metallic at the Curie temperature (T_C). Although the room temperature resistivities of Gd-doped single crystals were independent of Gd concenration of 1 to 3%, they decreased monotonically with increasing the dopant concentration after annealing in a reducing atmosphere.

DOI： 10.2109/jcersj.104.273

ペルオキソポリタングステン酸系無機レジストの遠紫外光照射による構造変化

その他リンク： https://jlc.jst.go.jp/DN/JALC/00370916307?from=CiNii

Single crystal growth and electrical properties of lanthanum- and gadolinium-doped BaTiO3

N Motohira, H Okamoto, Y Nakamura, A Kishimoto, M Miyayama, H Yanagida

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 104 ( 4 ) 273 - 276 1996年4月

Reversible electrochromic performance of Prussian blue coated with proton conductive Ta2O5 · nH2O film

Y Sone, A. Kishimoto, T. Kudo, and K. Ikeda

Solid State Ionics 83 ( 1-2 ) 135 - 143 1996年1月

Electric Control the Chemical Reaction at the Ceramic pn Heterocontact

Japanese Sensor Newsletter EDISON SENSOR TECHNOLOGY CENTER 25 - 27 1996年

SYSTEMATIC EVALUATION OF STRENGTH DISTRIBUTION IN DIELECTRIC CERAMICS THROUGH SIMULTANEOUS LOADING

K SUGAI, A KISHIMOTO, Y NAKAMURA, N MOTOHIRA, H YANAGIDA

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 103 ( 7 ) 730 - 732 1995年7月

Preparation and lithium intercalation of a new vanadium oxide with a two-dimensional structure

M Hibino, M. Ugaji, A. Kishimoto and T. Kudo

Solid State Ionics 79 239 - 244 1995年7月

CHANGE OF ELECTRICAL-RESISTANCE IN ELECTRICALLY CONDUCTIVE CERAMIC COMPOSITES UNDER TENSION AND COMPRESSION LOAD 査読

A ISHIDA, M MIYAYAMA, A KISHIMOTO, H YANAGIDA

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 103 ( 6 ) 576 - 581 1995年6月

「炭素繊維ガラス繊維補強プラスチックにおける自己診断機構の統計的解釈」

材料システム金沢工業大学材料システム研究所 14 57 - 63 1995年

Prediction of Fracture from Electrical Resistance Measurements in Electrically Conductive Composites

J.Ceram.Soc.Jpn 103 ( 6 ) 576 - 581 1995年

A Simultaneous Loading System to Evaluate the Structural Reliability of Brittle Materials

Akira Kishimoto, Kazuhito Sugai, Yoshinobu Nakamura, Naobumi Motohira, Hiroaki Yanagida

Journal of the American Ceramic Society 78 ( 8 ) 2251 - 2253 1995年

CO Gas Sensing by Na+ Added Porous CuO-ZnO Ceramic Sensor

Japanese Sensor Newsletter EDISON SENSOR TECHNOLOGY CENTER 9 ( 3 ) 16 - 20 1995年

Effect of High‐Voltage Screening on Strength Distribution for Titanium Dioxide Ceramics

Akira Kishimoto, Koretomo Endo, Yoshinobu Nakamura, Naobumi Motohira, Hiroaki Yanagida, Kazuhito Sugai

Journal of the American Ceramic Society 78 ( 8 ) 2248 - 2250 1995年

High voltage screening on ceramics parts with bimodal strength distribution

Koretomo Endo, Akira Kishimoto, Naobumi Motohira, Yoshinobu Nakamura, Hiroaki Yanagida

Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan 103 ( 1202 ) 1090 - 1092 1995年

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

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年11月

Coloration dynamics of tungsten oxide based all solid state electrochromic device

Yongming Li, Yoshihiro Aikawa, Akira Kishimoto, Tetsuichi Kudo

Electrochimica Acta 39 ( 6 ) 807 - 812 1994年4月

Electrochromic thin films coated from peroxo-polymolybdotungstate solutions

Sanae Takano, Akira Kishimoto, Koichiro Hinokuma, Tetsuichi Kudo

Solid State Ionics 70-71 ( 1 ) 636 - 641 1994年

Amorphous tantalum oxide proton conductor derived from peroxo-polyacid and its application for EC device

Y. Sone, A. Kishimoto, T. Kudo

Solid State Ionics 70-71 ( 1 ) 316 - 320 1994年

Hexagonal and pyrochlore-type cesium tungstates synthesized from cesium peroxo-polytungstate and their intercalation chemistry

Junko Oi, Akira Kishimoto, Tetsuichi Kudo

Solid State Ionics 72 ( 2 ) 204 - 208 1994年

Coloration Dynamics of Spin-Coated MoO3 • n H2O Electrochromic Films Fabricated from Peroxo-polymolybdate Solution

Koichir Hinokuma, Tetsuichi Kudo

Journal of the Electrochemical Society 141 ( 4 ) 876 - 879 1994年

PHOTOREACTION MECHANISM FOR AMORPHOUS PEROXO POLYTUNGSTIC ACID AS AN INORGANIC PHOTORESIST MATERIAL 査読

A KISHIMOTO, N MATSUZAKI, T KUDO

ADVANCED MATERIALS '93, II - A & B 15 ( A & B ) 307 - 308 1994年

Proton conductivity of spin-coated Ta2O5·nH2O amorphous thin films from peroxo-polytantalate solution

Y SONE, A KISHIMOTO, T KUDO

Solid State Ionics 66 ( 1-2 ) 53 - 59 1993年10月

Oxygen molecules stably caged in a UV irradiated thin film from peroxo polytungstic acids

Akira Kishimoto, Naosuke Matsuzaki, Tetsuichi Kudo

Journal of the Ceramic Society of Japan. International ed. 101 ( 1 ) 137 - 138 1993年1月

Transitional current analysis useful for intercalation electrode/solid electrolyte systems

Tetsuichi Kudo, Yoshihiro Aikawa, Yong ming Li, Akira Kishimoto

Solid State Ionics 62 ( 1-2 ) 99 - 104 1993年

Hexagonal tungsten bronze synthesized from potassium peroxo-polytungstate and its electrical properties

Isao Tsuyumoto, Akira Kishimoto, Tetsuichi Kudo

Solid State Ionics 59 ( 3-4 ) 211 - 216 1993年

Hexagonal and pyrochlore-type cesium tungstate synthesized from cesium peroxo-polytungstate and their redox chemistry

Junko Oi, Akira Kishimoto, Tetsuichi Kudo

Journal of Solid State Chemistry 103 ( 1 ) 176 - 185 1993年

Oxygen molecules stably caged in a UV irradiated thin film from peroxo polytungstic acids

Akira Kishimoto, Naosuke Matsuzaki, Tetsuichi Kudo

Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan 101 ( 1169 ) 143 - 144 1993年

Akira KISHIMOTO, Naosuke MATSUZAKI, Mitsuhiro HIBINO, Tetsuichi KUDO

日本化学会誌 : 化学と工業化学 = Journal of the Chemical Society of Japan : chemistry and industrial chemistry 1993 ( 9 ) 1041 - 1046 1993年

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年

Hexagonal tungsten trioxide obtained from peroxo-polytungstate and reversible lithium electro-intercalation into its framework

Junko Oi, Akira Kishimoto, Tetsuichi Kudo, Masahiko Hiratani

Journal of Solid State Chemistry 96 ( 1 ) 13 - 19 1992年

Amorphous structure of Ta₂O₅・nH₂O derived from peroxa-polytantalate solution

J. Solid State Chem 90 1992年

Electrochromism of Spin-coated Mo03. nH₂O thin films from peroxo-polytungstate

Solid state Ionics 53,56,507-512 1992年

回転塗布法によるWO₃系エレクトロクロミック膜の構造と特性

工藤徹一, 岸本昭, 高野早苗, 會川義寛

応用物理 61 ( 3 ) 266 - 269 1992年

出版者・発行元：The Japan Society of Applied Physics

電気化学的エレクトロクロミズム(EO)の応用は,従来の表示素子から調光ガラスなど,新しい分野に発展しつつあり,大面積のEO膜を生産性よく形成する方法が課題になっている.筆者らは,過酸化ポリタングステン酸を利用することにより,蒸着酸化タングステン膜に劣らぬ特性をもつEO膜を湿式法で作製しうることを見いだした.膜の特性およびその膜構造との関連性について述べるとともに,同様な手法で得られるモリブデン/タングステン系EO膜の最新のデータも紹介する.

DOI： 10.11470/oubutsu1932.61.266

Mechanical and dielectric failure of BaTiO3 ceramics

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年9月

Microstructure dependence of mechanical and dielectric strengths—i. porosity

Akira Kishimoto, Kunihito Koumoto, Hiroaki Yanagida, Masanobu Nameki

Engineering Fracture Mechanics 40 ( 4-5 ) 927 - 930 1991年1月

Coloration Dynamics of spin-coated amerphous WO₃・nH₂O electrodromic films from peroxa-paly tungstate salution

T. Kudo, S. Takano, A. Kishimoto, Y. Aikawa, rom peroxo-polytungsutate solution

Denki Kagaku 59 ( 8 ) 718 - 719 1991年

「過酸化ポリタングステン酸を出発原料とするフレームワーク化合物の合成と電気化学特性」

日本化学会誌 10 1296 - 1300 1991年

Three kinds of framework structures of corner-sharing WO6 octahedra derived from peroxo-polytungstates as a precursor

Tetsuichi Kudo, Junko Oi, Akira Kishimoto, Masahiko Hiratani

Materials Research Bulletin 26 ( 8 ) 779 - 787 1991年

Spin-coated Ta2O5·nH2O films derived from peroxo poly-tantalate solution

A KISHIMOTO, T NANBA, T KUDO

Solid State Ionics 40-41 903 - 905 1990年8月

Synthesis of new WO3-based complex oxides with tunnels by a chemical mixing process using peroxo-polytungstates

T KUDO, A KISHIMOTO, J OI, H INOUE

Solid State Ionics 40-41 567 - 571 1990年8月

Akira Kishimoto, Kunihito Koumoto, Hiroaki Yanagida

Journal of Materials Science 24 ( 2 ) 698 - 702 1989年2月

チタン酸バリウム厚膜の絶縁破壊後の機械強度

岸本昭, 河本邦仁, 柳田博明

日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi 96 ( 1116 ) 847 - 851 1988年

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：公益社団法人日本セラミックス協会

Mechanical strengths of porous BaTiO_3 thick films were measured after dielectric breakdown , the bending stress was applied to the position where the electric field had been applied. Comparison of the Weibull plots of mechanical strength between electrically failed and unfilled (as-sintered) specimens has shown that no damage due to dielectric breakdown occurred and that the poling process naturally involved in the dielectric strength measurement increased the mechanical strength. Mechanical strength before dielectric breakdown was estimated by taking into account this strengthening effect which depended on the poling voltage, time and temperature. A clear correlation between mechanical and dielectric strengths was obtained with the correlation coefficient of 0.73.

DOI： 10.2109/jcersj.96.847

調製条件の異なるチタン酸バリウム厚膜における機械強度・絶縁強度分布の相関(セラミックレターズ)

岸本昭, 中野雅哉, 藤津悟, 河本邦仁, 柳田博明

日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi 96 ( 1117 ) 954 - 957 1988年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：公益社団法人日本セラミックス協会

Mechanical and dielectric strength were measured for three types of BaTiO_3 thick films prepared under the different processing conditions. In any case, Weibull moduli for both strength distributions were identical in each type of films, though they differed among three types. The results indicated that dielectric strength measurement is a promising alternative method to distinguish the structural reliability change as influenced by processing parameters before firing within the framework of the same fabrication method .

DOI： 10.2109/jcersj.96.954