NDLI: Fluctuations of tensile strength and hardness of c-BC2N crystals induced by difference in atomic configuration.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Samra, H. Abu Zhao, Jijun Zhuang, Chunqiang Jiang, Xin Li, Xiaoqing
Description	Country affiliation: Germany Author Affiliation: Zhuang C ( Institute of Materials Engineering, University of Siegen, Siegen 57076, Germany.)
Abstract	At the atomistic level, the physical properties of a material are determined by its structure such as atomic arrangements. Here first-principles calculations were performed to investigate the effect of atomic configuration on the tensile strength and Vickers hardness of cubic-BC2N (c-BC2N) crystals. Depending on the degree of mixture between diamond and c-BN, the tensile strength of c-BC2N crystals can vary drastically from 27 to 77 GPa. The magnitude of the Vickers hardness fluctuations (~10 GPa) is also comparable to the experimental difference (~14 GPa). Thus, atomic-scale characterization of c-BC2N crystal structures may unveil the discrepancy of the measured Vickers hardness in experiments, and uncover the obvious differences of tensile strength described in theoretical calculations.
ISSN	09538984
e-ISSN	1361648X
Journal	Journal of Physics: Condensed Matter
Issue Number	46
Volume Number	23
Language	English
Publisher	IOP Publishing
Publisher Date	2011-11-23
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Discipline Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science

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Fluctuations of tensile strength and hardness of c-BC2N crystals induced by difference in atomic configuration.