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Chinese Journal of High Pressure Physics  > 2007  >  21(3): 279-282 .
MA Mai-Ning, ZHOU Wen-Ge, LIU Jing, LI Yan-Chun, LI Xiao-Dong. Energy Dispersive X-Ray Powder Diffraction of Natural Enstatite under High Pressure Conditions[J]. Chinese Journal of High Pressure Physics, 2007, 21(3): 279-282 . doi: 10.11858/gywlxb.2007.03.010
Citation: MA Mai-Ning, ZHOU Wen-Ge, LIU Jing, LI Yan-Chun, LI Xiao-Dong. Energy Dispersive X-Ray Powder Diffraction of Natural Enstatite under High Pressure Conditions[J]. Chinese Journal of High Pressure Physics, 2007, 21(3): 279-282 . doi: 10.11858/gywlxb.2007.03.010
shu

Energy Dispersive X-Ray Powder Diffraction of Natural Enstatite under High Pressure Conditions

doi: 10.11858/gywlxb.2007.03.010
  • 1.

    Laboratory of Computational Geodynamics, Graduate University of Chinese Academy of Science, Beijing 100049, China;

  • 2.

    Institute of Geochemistry, Chinese Academy of Science, Guiyang 550002, China;

  • 3.

    Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China

More Information
  • Corresponding author: MA Mai-Ning
  • Received Date: 01 Sep 2006
  • Rev Recd Date: 07 Dec 2006
  • Issue Publish Date: 05 Sep 2007
    Abstract
  • Using synchrotron radiation and diamond anvil cell (DAC) in high pressure research station of Beijing Synchrotron Radiation Facility (BSRF), energy dispersive X-ray powder diffraction (EDXD) of the natural enstatite collected from Damapin in Hebei Province, have been in situ measured under room temperature and high pressure (0~31.64 GPa) conditions. Then the unit-cell parameters of sample and their changes versus pressure have been acquired using the UnitCell software. Furthermore, basing on Murnaghan equation of state (EOS), bulk modulus KT(0)=172 GPa, compression coefficient, and p-V equation of state of natural enstatite have been obtained. The experiment data show that compression coefficient have distinct anisotropy for the three crystallographic axis. This result is consistent with the anisotropy of elastic velocity of orthopyroxene.

     

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