Brillouin scattering study of liquid methane under high pressures and high temperatures

被引：17
|
作者：
Li, Min [1 ]
Li, Fangfei [1 ]
Gao, Wei [1 ]
Ma, Chunli [1 ]
Huang, Liyin [1 ]
Zhou, Qiang [1 ]
Cui, Qiliang [1 ]
机构：
[1] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
来源：
JOURNAL OF CHEMICAL PHYSICS | 2010年 / 133卷 / 04期
基金：
中国国家自然科学基金;
关键词：
X-RAY-DIFFRACTION; REFRACTIVE-INDEX; SOLID METHANE; ROOM-TEMPERATURE; NOBLE-GASES; GPA; EQUATION; STATE; CH4; 1000-DEGREES-C;
D O I：
10.1063/1.3449141
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Brillouin scattering measurements were performed on liquid methane using diamond anvil cell along five isotherms and at the pressures up to solidification points. Sound velocity, refractive index, and adiabatic bulk modulus of liquid methane as function of pressure were determined with the measurements from the platelet and backscattering geometries. The maximum pressure and temperature reached up to 5.12 GPa and 539 K. The sound velocity, refractive index, and adiabatic bulk modulus increased with pressure along each isotherm. The equation of state of liquid methane was determined from the present Brillouin results. (C) 2010 American Institute of Physics. [doi:10.1063/1.3449141]
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页数：7
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