A Potential Superhard Material m-BCN

作者：Shi, Rui; Wang, Dong; Gan, Li-Hua^*

来源：Journal of Superhard Materials, 2018, 40(3): 164-169.

DOI：10.3103/S1063457618030024

• m-BCN
• mechanical properties
• electronic structure
• Vickers hardness
• hydrostatic calculation

We here propose a new superhard material m-BCN with comparable Vickers hardness to cBN by the use of first-principles calculations. The calculations show that the mentioned m-BCN is a thermodynamically and kinetically stable semiconductor. Hydrostatic calculation shows that it is anisotropic and its incompressibility is very close to cBN. Structural analysis shows that its excellent mechanical property and thermodynamically stability are inherited from diamond and cBN. These results provide a new clue to find new superhard phase.

• 出版日期2018-5
• 单位西南大学