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...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 Kao ----- -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.展开更多
基金Supported by NSFC (40672024)Knowledge Innovation Project of the Chinese Academy of Sciences (KJCX2-SW-N20,KJCX2-SW-N03)
文摘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 Kao ----- -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.
