Size-dependent elastic properties of Ni nanofilms by molecular dynamics simulation

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	Size-dependent elastic properties of Ni nanofilms by molecular dynamics simulation
	Yang ZY(杨振宇); Zhao YP(赵亚溥); Zhao YP
	2007
会议名称	Asia-Pacific Conference on Surface Science and Engineering
会议日期	DEC 19-21, 2006
通讯作者邮箱	yzhao@imech.ac.cn
会议地点	Hong Kong, PEOPLES R CHINA
关键词	Molecular Dynamics Simulation Size-Dependent Elastic Properties Nanofilms Surface Relaxation Young'S Modulus Yield Stress Thin-Films Surface Stress Modulus Metals Au Cu
页码	661-665
通讯作者	Zhao YP
中文摘要	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.
收录类别	CPCI-S
会议录	Surface Review And Letters
会议录出版者	Singapore
会议录出版地	World Scientific Publ Co Pte Ltd
语种	英语
ISSN号	0218-625X
WOS记录号	WOS:000251387500024
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/25486]
专题	力学研究所_力学所知识产出(1956-2008)
通讯作者	Zhao YP
推荐引用方式 GB/T 7714	Yang ZY,Zhao YP,Zhao YP. Size-dependent elastic properties of Ni nanofilms by molecular dynamics simulation[C]. 见:Asia-Pacific Conference on Surface Science and Engineering. Hong Kong, PEOPLES R CHINA. DEC 19-21, 2006.