Hardness of covalent crystals
文献类型：期刊论文
| 作者 | Gao FM ; He JL ; Wu ED ; Liu SM ; Yu DL ; Li DC ; Zhang SY ; Tian YJ |
| 刊名 | physical review letters
 |
| 出版日期 | 2003 |
| 卷号 | 91期号:1页码:文献编号：015502 |
| 关键词 | TRANSITION-METAL CARBIDES SUPERHARD MATERIALS CHEMICAL-BOND SOLIDS SEMICONDUCTORS NITRIDES DIAMOND MODULI |
| ISSN号 | 0031-9007 |
| 通讯作者 | gao fm |
| 中文摘要 | based on the idea that the hardness of covalent crystal is intrinsic and equivalent to the sum of the resistance to the indenter of each bond per unit area, a semiempirical method for the evaluation of hardness of multicomponent crystals is presented. applied to beta-bc2n crystal, the predicted value of hardness is in good agreement with the experimental value. it is found that bond density or electronic density, bond length, and degree of covalent bonding are three determinative factors for the hardness of a polar covalent crystal. our method offers the advantage of applicability to a broad class of materials and initializes a link between macroscopic property and electronic structure from first principles calculation. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000183915400028 |
| 公开日期 | 2010-09-13 |
| 源URL | [http://202.98.16.49/handle/322003/17687]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Gao FM,He JL,Wu ED,et al. Hardness of covalent crystals[J]. physical review letters,2003,91(1):文献编号：015502. |
| APA | Gao FM.,He JL.,Wu ED.,Liu SM.,Yu DL.,...&Tian YJ.(2003).Hardness of covalent crystals.physical review letters,91(1),文献编号：015502. |
| MLA | Gao FM,et al."Hardness of covalent crystals".physical review letters 91.1(2003):文献编号：015502. |
入库方式： OAI收割
来源：长春应用化学研究所
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