Size-dependent effects on equilibrium stress and strain in nickel nanowires

CORC > 厦门大学 > 物理技术－已发表论文

	Size-dependent effects on equilibrium stress and strain in nickel nanowires
	Wen, Y. H. ; Zhang, Y. ; Zhu, Z. Z. ; Zhu ZZ(朱梓忠)
刊名	http://dx.doi.org/10.1103/PhysRevB.76.125423
	2007-09
关键词	MOLECULAR-DYNAMICS GOLD NANOWIRES ELASTIC PROPERTIES YOUNGS MODULUS STRENGTH NANOTUBES MECHANICS METALS COPPER SYSTEM
英文摘要	Using molecular static calculations with the quantum corrected Sutten-Chen-type many-body potential, we have studied the stress and strain characteristics in nickel nanowires along [100], [110], and [111] crystallographic orientations under the equilibrium state. The main focus of this work is the size-dependent effects on these characteristics above. We deduce from the common neighbor analysis that surface region approximately consists of two layer atoms. Further, we extract the equilibrium characteristics in both surface and core regions of nanowires. The results show that with increasing diameter, the equilibrium stress and strain which are compressive decrease sharply in the core region, while the surface tensile stress starts to increase, and gradually trends to a nonzero constant. Due to much larger compressive stress and smaller modulus, the core of [100] nanowire endures larger compressive strain than that of [110] and [111] nanowires.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/69326]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Wen, Y. H.,Zhang, Y.,Zhu, Z. Z.,et al. Size-dependent effects on equilibrium stress and strain in nickel nanowires[J]. http://dx.doi.org/10.1103/PhysRevB.76.125423,2007.
APA	Wen, Y. H.,Zhang, Y.,Zhu, Z. Z.,&朱梓忠.(2007).Size-dependent effects on equilibrium stress and strain in nickel nanowires.http://dx.doi.org/10.1103/PhysRevB.76.125423.
MLA	Wen, Y. H.,et al."Size-dependent effects on equilibrium stress and strain in nickel nanowires".http://dx.doi.org/10.1103/PhysRevB.76.125423 (2007).