Volume 20 Issue 1
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MA Yan-Mei, ZHOU Qiang, YANG Kai-Feng, LI Xue-Fei, SHEN Long-Hai, CUI Qi-Liang, LIU Jing, ZOU Guang-Tian. Synchrotron Radiation Diffraction of Enstatite under High Temperature and High Pressure[J]. Chinese Journal of High Pressure Physics, 2006, 20(1): 11-14 . doi: 10.11858/gywlxb.2006.01.003
Citation: MA Yan-Mei, ZHOU Qiang, YANG Kai-Feng, LI Xue-Fei, SHEN Long-Hai, CUI Qi-Liang, LIU Jing, ZOU Guang-Tian. Synchrotron Radiation Diffraction of Enstatite under High Temperature and High Pressure[J]. Chinese Journal of High Pressure Physics, 2006, 20(1): 11-14 . doi: 10.11858/gywlxb.2006.01.003

Synchrotron Radiation Diffraction of Enstatite under High Temperature and High Pressure

doi: 10.11858/gywlxb.2006.01.003
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  • Corresponding author: CUI Qi-Liang
  • Received Date: 10 Oct 2005
  • Rev Recd Date: 17 Dec 2005
  • Publish Date: 05 Mar 2006
  • In-situ energy dispersive X-ray diffraction measurements of enstatite have been studied by using diamond anvil cell (DAC) with synchrotron radiation and laser heating in the range of 0~23 GPa and 293~2 000 K. We have found that enstatite transform to wadsleyite phase at 15.3 GPa and 1 600 K. At temperatures up to 2 000 K and pressure up to 23 GPa we have observed mixed phase of ilmenite and perovskite structure. The experiment further demonstrates that the density and seismic-wave velocity jumps are attributed to the phase transition of olivine and enstatite minerals.

     

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