Hardness of group IVA and IVB nitrides
发表时间：2019-03-11
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- 论文类型：
- 期刊论文
- 第一作者：
- Li, Keyan
- 通讯作者：
- Li, KY (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, Dept Mat Sci & Chem Engn, Sch Chem Engn, Dalian 116012, Peoples R China.
- 合写作者：
- Xue, Dongfeng
- 发表时间：
- 2010-05-01
- 发表刊物：
- 3rd International Symposium on Functional Materials/Advances in Functional Materials Conference
- 收录刊物：
- SCIE、EI、CPCI-S、Scopus
- 文献类型：
- J
- 卷号：
- T139
- ISSN号：
- 0031-8949
- 摘要：
- The hardnesses of various phases of group IVA and IVB nitrides (M(3)N(4), M = C, Si, Ge, Sn, Ti, Zr or Hf; MN, M = Ti, Zr or Hf) were calculated using the bond electronegativity model for material hardness. The hardnesses of group IV nitrides increase with an increase in their average coordination numbers except for carbon nitrides, for which increasing the average coordination numbers results in a reduction in hardness. We suggest that for light-element compounds, the diamond-like structure represents the hardest one among all possible structures, whereas a high coordination number is generally required for heavy-element compounds to achieve high hardness values. This work provides a useful guide for designing novel nitride materials having excellent mechanical performances.
- 是否译文：
- 否
