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Volume 31 Issue 6
Nov 2017
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Chinese Journal of High Pressure Physics  > 2017  >  31(6): 735-741.
ZHANG Ya-Jie, HE Duan-Wei, FANG Lei-Ming, LI Xin, LIU Fang-Ming, HU Qi-Wei, CHEN Ji, DING Wei, WANG Yong-Hua. In-Situ High-Pressure Neutron Diffraction with Supported PCBN Anvils[J]. Chinese Journal of High Pressure Physics, 2017, 31(6): 735-741. doi: 10.11858/gywlxb.2017.06.008
Citation: ZHANG Ya-Jie, HE Duan-Wei, FANG Lei-Ming, LI Xin, LIU Fang-Ming, HU Qi-Wei, CHEN Ji, DING Wei, WANG Yong-Hua. In-Situ High-Pressure Neutron Diffraction with Supported PCBN Anvils[J]. Chinese Journal of High Pressure Physics, 2017, 31(6): 735-741. doi: 10.11858/gywlxb.2017.06.008
shu

In-Situ High-Pressure Neutron Diffraction with Supported PCBN Anvils

doi: 10.11858/gywlxb.2017.06.008
  • 1.

    Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China

  • 2.

    Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, China

  • Received Date: 21 Feb 2017
  • Rev Recd Date: 07 Apr 2017
    Abstract
  • We used the polycrystalline cubic boron nitride (PCBN) as the anvil material based on its high hardness and strong absorption of neutrons, and designed a new type of concave-flat anvil and a hybrid gasket made of TiZr alloy, carbon fiber and teflon.The PCBN cell pressure was calibrated using the transformation points of ZnTe and ZrW2O8 respectively.The results show that the cell pressure reaches 9 GPa with the sample cell volume of 9 mm3 when the load pressure is 260 kN.The in-situ high pressure neutron diffraction experiments indicate that the PCBN anvil miscellaneous signal was not observed in the high pressure neutron diffraction patterns of iron.By further optimizing the PCBN cell, we expect to obtain a high-quality neutron diffraction patterns under higher pressure than 10 GPa.

     

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