High temperatures and high pressures Brillouin scattering studies of liquid H2O+CO2 mixtures

作     者：Junfeng Qin,~1 Min Li,~2Jun Li,~1Rongyan Chen,~2Zhenhao Duan,~1Qiang Zhou,~2 Fangfei Li,~(2,a))and Qiliang Cui~2 1 Key Laboratory of Earth’s Deep Interior,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 10029,China 2 State Key Lab of Superhard Materials,Jilin University,Changchun 130012,China 

会议名称：《中国科学院地质与地球物理研究所第十届(2010年度)学术年会》

会议日期：2011年

学科分类：07[理学] 070205[理学-凝聚态物理] 0702[理学-物理学] 

基　　金：supported by the Funds of National Natural Science Foundation of China(Grant Nos. 40873050,90914010,41020134003,11004074,and 10976011) support by National Basic Research Program of China(2005CB724400) Open Foundation of State Key Laboratory State of Superhard Materials,Jilin University 

摘      要：The Brillouin scattering spectroscopy studies have been conducted in a diamond anvil cell for a liquid mixtures composed of 95 mol%HO and 5 mol%CO under high temperatures and *** sound velocity,refractive index,density,and adiabatic bulk modulus of the HO + CO mixtures were determined under pressures up to the freezing point at 293,453,and 575 K. It is found from the experiment that sound velocities of the liquid mixture are substantially lower than those of pure water at 575 K,but not at lower *** presented an empirical relation of the density in terms of pressure and *** results show that liquid HO+CO mixtures are more compressible than water obtained from an existing equation of state of at 453 and 575 K.