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First Principle Calculations on Structures and Properties of Diamond-Like B2(CN)3 Compounds

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Abstract:

Diamond-like B-C-N compounds have the excellent potential properties like diamond or cubic boron nitride. In this paper, diamond-like B2(CN)3 compound has been studied by first principle calculations. After geometry optimization, hexagonal and monoclinic B2(CN)3 models were obtained. According to the band structure and density of state calculated, they are conducting. The relative stability was proved using elastic constants calculated by Born criterion. The monoclinic B2(CN)3 is one of hard material with theoretical Vickers hardness 38 GPa.

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Periodical:

Key Engineering Materials (Volume 487)

Pages:

164-168

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.487.164

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Online since:

July 2011

Authors:

Dong Xu Li, Dong Li Yu, Jing Lu

Keywords:

CASTEP, Diamond-Like B-C-N Compounds, Superhard Material

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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