Size-dependent surface energy density of typically fcc metallic nanomaterials
文献类型：期刊论文
| 作者 | Zhang C(张存) ; Yao Y(姚寅); Chen SH(陈少华)
|
| 刊名 | COMPUTATIONAL MATERIALS SCIENCE
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 82页码:372-377 |
| 通讯作者邮箱 | chenshaohua72@hotmail.com |
| 关键词 | Nanomaterials Surface energy density Surface relaxation parameter Lagrangian configuration Eulerian configuration |
| ISSN号 | 0927-0256 |
| 产权排序 | [Zhang, Cun; Yao, Yin; Chen, Shaohua] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
| 通讯作者 | Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| 中文摘要 | The surface energy density of nano-sized structural elements exhibits an obvious size-dependent feature. To study this interesting phenomenon, atomistic calculations are carried out in the present paper for different face-centered-cubic (fcc) metallic nano-slabs. Lagrangian and Eulerian descriptions are adopted, respectively, in order to find the varying trends of surface energy densities in an initially un-deformed configuration and a current one. It is found that the Lagrangian surface energy density increases monotonically with an increase of the nano-slab's thickness in the former no matter what the surface orientation is; while the variation of the Eulerian one is indefinite. The surface relaxation parameters are further simulated for differently oriented surfaces, which gives a very good explanation for the differences between the Lagrangian and Eulerian surface energy densities. The results in this paper should be a useful supplement to theoretical studies on the surface/interface effect of nanomaterials. |
| 学科主题 | 固体力学 |
| 分类号 | 二类/Q2 |
| 收录类别 | SCI ; EI |
| 资助信息 | NSFC [11125211, 11021262, 2012CB937500] |
| 原文出处 | http://dx.doi.org/10.1016/j.commatsci.2013.10.015 |
| 语种 | 英语 |
| WOS记录号 | WOS:000327533300054 |
| 公开日期 | 2014-02-13 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/48081]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang C,Yao Y,Chen SH. Size-dependent surface energy density of typically fcc metallic nanomaterials[J]. COMPUTATIONAL MATERIALS SCIENCE,2014,82:372-377. |
| APA | 张存,姚寅,&陈少华.(2014).Size-dependent surface energy density of typically fcc metallic nanomaterials.COMPUTATIONAL MATERIALS SCIENCE,82,372-377. |
| MLA | 张存,et al."Size-dependent surface energy density of typically fcc metallic nanomaterials".COMPUTATIONAL MATERIALS SCIENCE 82(2014):372-377. |
入库方式： OAI收割
来源：力学研究所
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