論文 - 寺﨑　英紀

Radiographic study on the viscosity of the Fe-FeS melts at the pressure of 5 to 7 GPa 査読

S Urakawa, H Terasaki, K Funakoshi, T Kato, A Suzuki

AMERICAN MINERALOGIST   86 ( 4 )   578 - 582   2001年4月

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：MINERALOGICAL SOC AMER  

Stokes' viscometry combined with in situ X-ray radiographic observation, using the 6-8 type multi-anvil press and synchrotron radiation, has been applied to the viscosity measurement of the Fe-FeS melt up to pressures of 7 GPa. The viscosity is found to be about 2 x 10(-2) Pa-s at 5 to 7 GPa and temperatures about 1350 K, in marked contrast to previous viscosity measurements, which showed high viscosity, 0.5 to 14 Pa-s, at 2 to 5 GPa (LeBlanc and Secco 1996). Our viscosity data, however, is consistent with all other evidence, which include 1 atm viscosity data, X-ray structure analysis, and ab initio simulations. Recent viscosity measurements (Dobson et al. 2000) also showed the viscosity of Fe-FeS melt to be about 10(-2) Pa-s at 2.5 GPa. Thus, we are confident that the viscosity of the Fe-FeS melt is close to a typical value (10(-2) Pa-s) of viscosity for liquid metal even at high pressures.

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マルチアンビルを用いた高温高圧実験－手段と装置－ 査読

舟越賢一, 内海渉, 大高理, 入舩徹男, 井上徹, 伊藤英司, 桂智男, 久保敦, 廣瀬敬, 安藤淳一, 鈴木昭夫, 久保友明, 寺崎英紀

岩石鉱物科学   30   100 - 101   2001年

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掲載種別：研究論文（学術雑誌）  

DOI： 10.2465/gkk.30.100

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In situ determination of the phase boundary between wadsleyite and ringwoodite in Mg2SiO4 査読

A Suzuki, E Ohtani, H Morishima, T Kubo, Y Kanbe, T Kondo, T Okada, H Terasaki, T Kato, T Kikegawa

GEOPHYSICAL RESEARCH LETTERS   27 ( 6 )   803 - 806   2000年3月

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：AMER GEOPHYSICAL UNION  

The phase boundary between wadsleyite and ringwoodite in Mg2SiO4 composition was determined by in situ observation using synchrotron X-ray and multi anvil apparatus:in KEK, Tsukuba, Japan. An energy dispersive method:was employed using the Ge solid state detector and the white X-ray beam from the synchrotron radiation source. The pressure was determined by the equation of state of NaCl. The stability field was identified by the change in intensities of diffraction lines of each phases. As a result, the phase boundary is expressed as a linear equation P=10.32(28)+0.00691(9)xT, where P is pressure in gigapascals and T is temperature in degrees Celsius.

DOI： 10.1029/1999GL008425

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口絵3 : 放射光X線その場観察実験に用いられる大容量固体圧高温高圧発生装置

加藤 工, 寺崎 英紀, 久保 友明

地学雑誌   109 ( 6 )   Plate5 - Plate5   2000年

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出版者・発行元：Tokyo Geographical Society  

DOI： 10.5026/jgeography.109.6_Plate5

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Viscosity of melt in diopside-jadeite system at high pressure by X-ray radiograph

Suzuki, A, Ohtani, E, Maeda, M, Sato, J, Terasaki, H, Funakoshi, K

SPring-8 User Experiment Report No.4 (1999B)   46   2000年

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記述言語：英語   掲載種別：研究論文（大学，研究機関等紀要）  

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In situ X-ray observation of the phase boundary of β- and γ-Mg2SiO4

Suzuki, A, Kubo, T, Ohtani, E, Kanbe, Y, Okada, T, Terasaki, H, Kato, T, Kikegawa, T

Photon Factory Activity Report   16   222   1999年

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記述言語：英語   掲載種別：研究論文（大学，研究機関等紀要）  

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Viscosity of basaltic silicate melt at high pressure

Funakoshi, K, Suzuki, A, Terasaki, H, Kanzaki, M

SPring-8 User Experiment Report No. 3 (1999A)   67   1999年

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記述言語：英語   掲載種別：研究論文（大学，研究機関等紀要）  

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Precise determination of pyroxene-garnet phase equilibrium relations using in situ X-ray observation

Okada, T, Kato, T, Terasaki, H, Kubo, T, Suzuki, A, Ohtani, E, Kikegawa, T

Photon Factory Activity Report   16   216   1999年

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記述言語：英語   掲載種別：研究論文（大学，研究機関等紀要）  

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