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Chinese Journal of High Pressure Physics  > 2002  >  16(1): 1-6 .
WU Qi, SUN Li-Ling, JING Qin, CAO Xin-Cheng, WANG Wen-Kui. Conversion of Graphite-to-Diamond Assisted by a Fluid Catalyst under High Pressure and High Temperature[J]. Chinese Journal of High Pressure Physics, 2002, 16(1): 1-6 . doi: 10.11858/gywlxb.2002.01.001
Citation: WU Qi, SUN Li-Ling, JING Qin, CAO Xin-Cheng, WANG Wen-Kui. Conversion of Graphite-to-Diamond Assisted by a Fluid Catalyst under High Pressure and High Temperature[J]. Chinese Journal of High Pressure Physics, 2002, 16(1): 1-6 . doi: 10.11858/gywlxb.2002.01.001
shu

Conversion of Graphite-to-Diamond Assisted by a Fluid Catalyst under High Pressure and High Temperature

doi: 10.11858/gywlxb.2002.01.001
  • 1.

    Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China;

  • 2.

    College of Material Science and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China;

  • 3.

    Second Aeronautical Institute of Air Force, Changchun 130022, China

More Information
  • Corresponding author: WU Qi
  • Received Date: 02 Nov 2001
  • Rev Recd Date: 20 Nov 2001
  • Publish Date: 05 Mar 2002
    Abstract
  • The catalyst role of supercritical fluid CO2 in the conversion of graphite-to-diamond at high pressure and high temperature has been confirmed experimentally. The complete transformation from graphite to diamond is achieved at 1 800～2 000 ℃ within 2～0.5 h under the pressure of 7.7 GPa. The change in temperature leads to morphology modification of the diamonds formed in the experiments: Diamonds with an irregular shape crystallize at 1 800～2 000 ℃ and the octahedral morphology crystallize at 1 500～1 700 ℃.

     

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    • References(10)
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