Knowledge Management System of Institue of Mechanics, CAS
| Size-dependent elastic properties of Ni nanofilms by molecular dynamics simulation | |
Yang ZY(杨振宇) ; Zhao YP(赵亚溥); Zhao YP
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| Source Publication | Surface Review And Letters |
| 2007 | |
| Pages | 661-665 |
| Conference Name | Asia-Pacific Conference on Surface Science and Engineering |
| Conference Date | DEC 19-21, 2006 |
| Conference Place | Hong Kong, PEOPLES R CHINA |
| Abstract | Size-dependent elastic properties of Ni nanofilms are investigated by molecular dynamics ( MD) simulations with embedded atom method (EAM). The surface effects are considered by calculating the surface relaxation, surface energy, and surface stress. The Young's modulus and yield stress are obtained as functions of thickness and crystallographic orientation. It is shown that the surface relaxation has important effects on the the elastic properties at nanoscale. When the surface relaxation is outward, the Young's modulus decreases with the film thickness decreasing, and vice versa. The results also show that the yield stresses of the films increase with the films becoming thinner. With the thickness of the nanofilms decreasing, the surface effects on the elastic properties become dominant. |
| Keyword | Molecular Dynamics Simulation Size-dependent Elastic Properties Nanofilms Surface Relaxation Young's Modulus Yield Stress Thin-films Surface Stress Modulus Metals Au Cu |
| WOS ID | WOS:000251387500024 |
| Indexed By | CPCI-S |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/25486 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Zhao YP |
| Recommended Citation GB/T 7714 | Yang ZY,Zhao YP,Zhao YP. Size-dependent elastic properties of Ni nanofilms by molecular dynamics simulation[C]Surface Review And Letters,2007:661-665. |
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| Conf.73.pdf（246KB） | 开放获取 | -- | View Download | |||
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