高圧力の科学と技術
Online ISSN : 1348-1940
Print ISSN : 0917-639X
ISSN-L : 0917-639X
特集-ガスハイドレート-
ガスハイドレートの高圧物性
清水 宏晏
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ジャーナル フリー

2002 年 12 巻 1 号 p. 3-9

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The fundamental properties of gas hydrates are reviewed; classification and type, structure and composition, formation and stability, and occupancy of guest molecules. Recent Raman studies on the properties of cage-occupancy are discussed by considering the C-H vibrations of their guest molecules for methane, methane-ethane mixed (structural phase transition), ethane, and cyclopropane (pressure-induced small cage occupancy) hydrates. Finally, I give an overview of very recent x-ray (neutron) diffraction and Raman scattering studies of phase transitions in the methane hydrate at high pressures, and discuss the inconsistent results by investigating the experimental details.

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© 2002 日本高圧力学会
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