摘要
The equation of state(EOS)of Cr3C2 at high pressure is studied by the synchrotron radiation x-ray diffraction(XRD)in a diamond anvil cell(DAC)at ambient temperature,and density functional theory(DFT).The XRD analysis shows that the orthorhombic structure is maintained to a maximum pressure of 44.5 GPa.The XRD data show that the bulk modulus is K0=292(18)GPa with K0'=3.25(0.85).In addition,the high-pressure compression behavior of Cr3C2 is studied by first principles calculations.The obtained bulk modulus of Cr3C2 is 323(1)GPa.
作者
熊伦
李强
杨成福
谢清爽
张俊然
Lun Xiong;Qiang Li;Cheng-Fu Yang;Qing-Shuang Xie;Jun-Ran Zhang(School of Intelligent Manufacturing,Sichuan University of Arts and Science,Dazhou 635000,China;Multidiscipline Research Center,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China)
基金
the Project of Ph.D.Special Research of Sichuan University of Arts and Science,China(Grant No.2019BS006Z)
the Fund from the Chinese Academy of Sciences(Grant Nos.KJCX2-SW-N03 and KJCX2-SW-N20).
