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Pressure-induced phase transition of wulfenite

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【Author】 LIU Ying-Xin1 QIN Shan1;1) WU Jing1 LI Xiao-Dong2 LI Yan-Chun2 LIU Jing2 1(Key Laboratory of Orogenic Belts and Crustal Evolution of MOE, Department of Geology, Peking University, Beijing 100871, China) 2(Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China)

【机构】 Key Laboratory of Orogenic Belts and Crustal Evolution of MOE, Department of Geology, Peking University； Institute of High Energy Physics, Chinese Academy of Sciences；

【摘要】 The in-situ high-pressure structures of wulfenite have been investigated by means of angular dis-persive X-ray diffraction with diamond anvil cell and synchrotron radiation.In the pressure up to 22.9 GPa, a pressure-induced scheelite-to-fergusonite transition is observed at about 10.6 GPa.The pressure dependence for the lattice parameters of wulfenite is reported, and the axial compression coefficients Ka0 =-1.36×10-3 GPa-1 and Kc0 =-2.78×10-3 GPa-1 are given.The room-temperature isothermal bulk modulus is also obtained by fitting the P-V data using the Murnaghan equation of state.更多还原

【Abstract】 The in-situ high-pressure structures of wulfenite have been investigated by means of angular dis-persive X-ray diffraction with diamond anvil cell and synchrotron radiation.In the pressure up to 22.9 GPa, a pressure-induced scheelite-to-fergusonite transition is observed at about 10.6 GPa.The pressure dependence for the lattice parameters of wulfenite is reported, and the axial compression coefficients Ka0 =-1.36×10-3 GPa-1 and Kc0 =-2.78×10-3 GPa-1 are given.The room-temperature isothermal bulk modulus is also obtained by fitting the P-V data using the Murnaghan equation of state.更多还原

【关键词】 wulfenite； high-pressure； phase transition； synchrotron radiation； X-ray diffraction；
【Key words】 wulfenite； high-pressure； phase transition； synchrotron radiation； X-ray diffraction；

【基金】 Supported by NSFC (40672024);Knowledge Innovation Project of the Chinese Academy of Sciences (KJCX2-SW-N20,KJCX2-SW-N03)

【文献出处】中国物理C ,Chinese Physics C , 编辑部邮箱 ,2009年11期

【分类号】P618.42
【被引频次】1
【下载频次】43

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