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Journal Articles

Investigation of hydrogen sites of wadsleyite; A Neutron diffraction study

Sano, Asami; Kuribayashi, Takahiro*; Komatsu, Kazuki*; Yagi, Takehiko*; Otani, Eiji*

Physics of the Earth and Planetary Interiors, 189(1-2), p.56 - 62, 2011/11

https://doi.org/10.1016/j.pepi.2011.07.003
 Times Cited Count：22 Percentile：52.54(Geochemistry & Geophysics)

A neutron powder diffraction experiment was conducted to refine the hydrogen position of Mg-endmember deuterated wadsleyite. Preliminary refinement using the dry-structure determined by single crystal X-ray diffraction reveals a maximum peak Q1 of nuclear density in the difference Fourier map at the M3 octahedral edge, between the O1 and O4 atoms. Full Rietveld refinement was conducted assuming that the maximum peak corresponds to deuterium atom. The deuterium position was determined as (0.096, 0.289, 0.315) with occupancy of 8.2%. The structure determined by this study predicts that the hydration of wadsleyite has an anisotropic effect on diffusion properties.

Journal Articles

Phase relationships and equations of state for FeS at high pressures and temperatures and implications for the internal structure of Mars

Urakawa, Satoru*; Someya, Keiko*; Terasaki, Hidenori*; Katsura, Tomoo*; Yokoshi, Sho*; Funakoshi, Kenichi*; Utsumi, Wataru; Katayama, Yoshinori; Sueda, Yuichiro*; Irifune, Tetsuo*

Physics of the Earth and Planetary Interiors, 143-144, p.469 - 479, 2004/06

https://doi.org/10.1016/j.pepi.2003.12.015
 Times Cited Count：62 Percentile：72.55(Geochemistry & Geophysics)

no abstracts in English

Journal Articles

A Large-volume high-pressure and high-temperature apparatus for in situ X-ray observation, "${it SPEED-Mk.II}$"

Katsura, Tomoo*; Funakoshi, Kenichi*; Kubo, Atsushi*; Nishiyama, Norimasa*; Tange, Yoshinori*; Sueda, Yuichiro*; Kubo, Tomoaki*; Utsumi, Wataru

Physics of the Earth and Planetary Interiors, 143-144, p.497 - 506, 2004/06

https://doi.org/10.1016/j.pepi.2003.07.025
 Times Cited Count：110 Percentile：86.63(Geochemistry & Geophysics)

no abstracts in English

Journal Articles

Post-spinel transition in Mg$$_{2}$$SiO$$_{4}$$ determined by high ${it P-T}$ in situ X-ray diffractometry

Katsura, Tomoo*; Yamada, Hitoshi*; Shimmei, Toru*; Kubo, Atsushi*; Ono, Shigeaki*; Kanzaki, Masami*; Yoneda, Akira*; Walter, M. J.*; Ito, Eiji*; Urakawa, Satoru*; et al.

Physics of the Earth and Planetary Interiors, 136(1-2), p.11 - 24, 2003/04

https://doi.org/10.1016/S0031-9201(03)00019-0
 Times Cited Count：174 Percentile：93.69(Geochemistry & Geophysics)

no abstracts in English

Journal Articles

Mechanisms and kinetics of the post-spinel transformation in Mg$$_{2}$$SiO$$_{4}$$

Kubo, Tomoaki*; Otani, Eiji*; Kato, Takumi*; Urakawa, Satoru*; Suzuki, Akio*; Kambe, Yuichi*; Funakoshi, Kenichi*; Utsumi, Wataru; Kikegawa, Takumi*; Fujino, Kiyoshi*

Physics of the Earth and Planetary Interiors, 129(1-2), p.153 - 171, 2002/01

https://doi.org/10.1016/S0031-9201(01)00270-9
 Times Cited Count：50 Percentile：66.29(Geochemistry & Geophysics)

no abstracts in English

5 (Records 1-5 displayed on this page)
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