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YANG Jie, LI Ming, LIN Peng, YU Dong-Li, HE Ju-Long. Study on High-Pressure Phase Transition of Hexagonal B-C-N Compound[J]. Chinese Journal of High Pressure Physics, 2011, 25(2): 123-127 . doi: 10.11858/gywlxb.2011.02.005
Citation: YANG Jie, LI Ming, LIN Peng, YU Dong-Li, HE Ju-Long. Study on High-Pressure Phase Transition of Hexagonal B-C-N Compound[J]. Chinese Journal of High Pressure Physics, 2011, 25(2): 123-127 . doi: 10.11858/gywlxb.2011.02.005

Study on High-Pressure Phase Transition of Hexagonal B-C-N Compound

doi: 10.11858/gywlxb.2011.02.005
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  • Corresponding author: YANG Jie
  • Received Date: 22 Mar 2010
  • Rev Recd Date: 05 Jul 2010
  • Issue Publish Date: 15 Apr 2011
  • Using in situ high-pressure synchrotron X-ray diffraction and diamond anvil cell (DAC) techniques, the phase transition and physical characteristics of B0.47C0.23N0.30 compound were observed in the pressure range of 1.4~30 GPa. The experimental results showed that the B-C-N compound experiences a phase transition from hexagonal structure to wurtzite phase at 14.9 GPa. The pressure dependences of the lattice parameters and volume of wurtzite-type B-C-N were calculated. By fitting the Brich-Murnaghan equation of state to the pressure-volume data, the bulk modulus of wurtzite-type B-C-N compound was obtained as (27526)GPa, which is very close to the value of (28215)GPa for the cubic BC2N.

     

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