| Size-dependent surface energy density of typically fcc metallic nanomaterials |
| Zhang C(张存); Yao Y(姚寅); Chen SH(陈少华); Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
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发表期刊 | COMPUTATIONAL MATERIALS SCIENCE
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| 2014-02-01
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卷号 | 82页码:372-377 |
ISSN | 0927-0256
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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. |
关键词 | Nanomaterials
Surface Energy Density
Surface Relaxation Parameter
Lagrangian Configuration
Eulerian Configuration
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学科领域 | 固体力学
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URL | 查看原文
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收录类别 | SCI
; EI
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语种 | 英语
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WOS记录号 | WOS:000327533300054
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项目资助者 | NSFC [11125211, 11021262, 2012CB937500]
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课题组名称 | LNM仿生材料与固体的微尺度力学
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论文分区 | 二类/Q2
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引用统计 |
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文献类型 | 期刊论文
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条目标识符 | http://dspace.imech.ac.cn/handle/311007/48081
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专题 | 非线性力学国家重点实验室
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通讯作者 | Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
推荐引用方式 GB/T 7714 |
Zhang C,Yao Y,Chen SH,et al. Size-dependent surface energy density of typically fcc metallic nanomaterials[J]. COMPUTATIONAL MATERIALS SCIENCE,2014,82:372-377.
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APA |
张存,姚寅,陈少华,&Chen, SH .(2014).Size-dependent surface energy density of typically fcc metallic nanomaterials.COMPUTATIONAL MATERIALS SCIENCE,82,372-377.
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MLA |
张存,et al."Size-dependent surface energy density of typically fcc metallic nanomaterials".COMPUTATIONAL MATERIALS SCIENCE 82(2014):372-377.
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