Novel Mechanical Behavior Of Zno Nanorods

doi:10.1016/j.cma.2007.10.011

IMECH-IR > 力学所知识产出(1956-2008)

	Novel Mechanical Behavior Of Zno Nanorods
	Wang J; Kulkarni AJ; Ke FJ(柯孚久); Bai YL(白以龙); Zhou M; Zhou, M (reprint author), Georgia Inst Technol, GWW Sch Mech Engn, Atlanta, GA 30332 USA.
发表期刊	Computer Methods In Applied Mechanics And Engineering
	2008
页码	3182-3189
ISSN	0045-7825
摘要	A novel stress-strain relation with two stages of linear elastic deformation is observed in [0 0 0 1]-oriented ZnO nanorods under uniaxial tensile loading. This phenomenon results from a phase transformation from wurtzite (WZ, P6(3)mc space group) to a body-centered tetragonal structure with four-atom rings (denoted as BCT-4) belonging to the P4(2)/mnm space group. The analysis here focuses on the effects of nanorod size and temperature on the phase transformation and the associated mechanical behavior. It is found that as size is increased from 19.5 to 45.5 angstrom, the critical stress for nucleation of the transformation decreases by 25% from 21.90 to 16.50 GPa and the elastic moduli of the WZ- and BCT-4-structured nanorods decrease by 24% (from 299.49 to 227.51 GPa) and 38% (from 269.29 to 166.86 GPa), respectively. A significant temperature effect is also observed, with the critical stress for transformation initiation decreasing 87.8% from 17.89 to 2.19 GPa as temperature increases from 300 to 1500 K. (c) 2007 Elsevier B.V. All rights reserved.
关键词	Phase Transformation Zno Nanorods Molecular Dynamics Semiconducting Oxide Nanobelts Surface-stress Growth Nanowires Size
DOI	10.1016/j.cma.2007.10.011
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000258981600003
关键词[WOS]	SEMICONDUCTING OXIDE NANOBELTS ; SURFACE-STRESS ; GROWTH ; NANOWIRES ; SIZE
WOS研究方向	Engineering ; Mathematics ; Mechanics
WOS类目	Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications ; Mechanics
引用统计	被引频次：71[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/25912
专题	力学所知识产出(1956-2008)
通讯作者	Zhou, M (reprint author), Georgia Inst Technol, GWW Sch Mech Engn, Atlanta, GA 30332 USA.
推荐引用方式 GB/T 7714	Wang J,Kulkarni AJ,Ke FJ,et al. Novel Mechanical Behavior Of Zno Nanorods[J]. Computer Methods In Applied Mechanics And Engineering,2008:3182-3189.
APA	Wang J,Kulkarni AJ,柯孚久,白以龙,Zhou M,&Zhou, M .(2008).Novel Mechanical Behavior Of Zno Nanorods.Computer Methods In Applied Mechanics And Engineering,3182-3189.
MLA	Wang J,et al."Novel Mechanical Behavior Of Zno Nanorods".Computer Methods In Applied Mechanics And Engineering (2008):3182-3189.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Jp166.pdf（992KB）			开放获取	--	浏览下载