Thermal equation of state of natural stibnite up to 25.7 GPa and 533 K

	Thermal equation of state of natural stibnite up to 25.7 GPa and 533 K
	Fan, DW; Xu, JG; Liu J(刘景); Liu, J; Li, YC; Xie, HS
刊名	HIGH TEMPERATURES-HIGH PRESSURES
	2014
卷号	43 期号:5 页码:351-359
关键词	Synchrotron X-ray diffraction Equation of state stibnite high pressure and high temperature
英文摘要	In situ energy dispersive X-ray diffraction experiments on a natural stibnite were performed by using an external resistive heating diamond anvil cell instrument with synchrotron radiation at Beijing Synchrotron Radiation Facility up to 25.7 GPa and 533 K. No phase changes are observed during compression or decompression. The compression of stibnite is anisotropic. The a-axis is the most compressible direction, followed by the b axis and the c axis. The a and b axis is thrice and twice as compressible as the c axis, respectively. A fit to the high temperature Birch-Murnaghan equation of state yielded an isothermal bulk modulus K-0 = 27.7(1.1) GPa, a temperature derivative of the bulk modulus (partial derivative K/partial derivative T)(p) = -0.0147(57) GPaK(-1), and a thermal expansion coefficient (alpha(0)) = 2.9(6) x 10(-4)K(-1). The derived K-0 value is in good agreement with previous results. The temperature derivative of the bulk modulus and thermal expansion coefficient of stibnite are obtained for the first time. An anomalous thermal behavior of stibnite along the c axis was found, and its possible reason was discussed.
学科主题	Thermodynamics; Mechanics; Materials Science
收录类别	SCI
WOS记录号	WOS:000340215200002
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225022]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Fan, DW,Xu, JG,Liu J,et al. Thermal equation of state of natural stibnite up to 25.7 GPa and 533 K[J]. HIGH TEMPERATURES-HIGH PRESSURES,2014,43(5):351-359.
APA	Fan, DW,Xu, JG,刘景,Liu, J,Li, YC,&Xie, HS.(2014).Thermal equation of state of natural stibnite up to 25.7 GPa and 533 K.HIGH TEMPERATURES-HIGH PRESSURES,43(5),351-359.
MLA	Fan, DW,et al."Thermal equation of state of natural stibnite up to 25.7 GPa and 533 K".HIGH TEMPERATURES-HIGH PRESSURES 43.5(2014):351-359.