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Chinese Journal of High Pressure Physics  > 1994  >  8(4): 241-247 .
LIU Xiao-Yang, SU Wen-Hui, MENG Chang-Gong, HU Zhuang-Qi. A New Criterion of Hardness for Materials with Rocksalt Structure[J]. Chinese Journal of High Pressure Physics, 1994, 8(4): 241-247 . doi: 10.11858/gywlxb.1994.04.001
Citation: LIU Xiao-Yang, SU Wen-Hui, MENG Chang-Gong, HU Zhuang-Qi. A New Criterion of Hardness for Materials with Rocksalt Structure[J]. Chinese Journal of High Pressure Physics, 1994, 8(4): 241-247 . doi: 10.11858/gywlxb.1994.04.001
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A New Criterion of Hardness for Materials with Rocksalt Structure

doi: 10.11858/gywlxb.1994.04.001
  • 1.

    Department of Physics, Jilin University, Changchun 130023, China;

  • 2.

    Institute of Metal Research, Academia Sinica, Shenyang 110015, China

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  • Corresponding author: LIU Xiao-Yang
  • Received Date: 18 Oct 1993
  • Rev Recd Date: 18 Oct 1993
  • Publish Date: 05 Dec 1994
    Abstract
  • A new criterion of hardness is proposed based on the analysis of the bonding in fourteen rocksalt-structure solids with the aid of discrete variational Xa (DV-Xa) cluster calculations. The concept of bond density is introduced to measure the hardness of materials. And there is a good linear relation between bond density and Mohs hardness. As the calculation does not involve any empirical parameters, it can be conveniently applied to some complicated systems, for example, alloys and intermetallic compounds.

     

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