Repeatable mechanical energy absorption of ZnO nanopillars

doi:10.1016/j.mtcomm.2021.102904

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Repeatable mechanical energy absorption of ZnO nanopillars
	Wang J(王军)4; Zhou M 3; Yang R(杨荣)4; Xiao P(肖攀)4; Ke FJ(柯孚久)2; Lu CS(卢春生)1
刊名	MATERIALS TODAY COMMUNICATIONS
	2021-12-01
卷号	29 页码:8
关键词	ZnO nanopillars Repeatable energy absorption Phase transformation Inversion domain boundary Molecular dynamics
DOI	10.1016/j.mtcomm.2021.102904
通讯作者	Zhou, Min(min.zhou@gatech.edu)
英文摘要	We show that repeatable energy absorption can be obtained via the reversible wurtzite-to-hexagonal phase transformation of ZnO nanopillars at room temperature. The effect is demonstrated using molecular dynamics simulations and available experimental data. With uniaxial compressive strains up to 22.1% along the [0001] orientation, a ZnO nanopillar with a lateral dimension of 5.5 nm can produce average specific energy absorption on the order of 26.7 J g(-1) under quasistatic cyclic loading and 11.1 J g(-1) under rapid loading. The theoretical maximum of the specific energy absorption is 41.0 J g(-1) which can be approached at nanopillars with lateral sizes above 55 nm. These values are comparable to that of widely used aluminum foams. The effects of inversion domain boundaries and sample size on the repeatable energy absorbing capacity are discussed. The findings open an avenue for ZnO nanostructures in mechanical energy absorption and dissipation applications.
分类号	二类
资助项目	National Natural Science Foundation of China[11772332] ; National Natural Science Foundation of China[11790292] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040501] ; Opening Fund of State Key Laboratory of Nonlinear Mechanics ; Australian Government ; Government of Western Australia ; LNMGrid of the State Key Laboratory of Nonlinear Mechanics ; ScGrid of Supercomputing Center, Computer Network Information Center of the Chinese Academy of Sciences
WOS关键词	INVERSION DOMAIN BOUNDARY ; MOLECULAR-DYNAMICS ; SIMULATION ; SYSTEMS
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000712156400004
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Opening Fund of State Key Laboratory of Nonlinear Mechanics ; Australian Government ; Government of Western Australia ; LNMGrid of the State Key Laboratory of Nonlinear Mechanics ; ScGrid of Supercomputing Center, Computer Network Information Center of the Chinese Academy of Sciences
其他责任者	Zhou, Min
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/87910]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Curtin Univ, Sch Civil & Mech Engn, Perth, WA 6845, Australia 2.Beihang Univ, Sch Phys, Beijing 100191, Peoples R China; 3.Georgia Inst Technol, GWW Sch Mech Engn, Atlanta, GA 30332 USA; 4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Wang J,Zhou M,Yang R,et al. Repeatable mechanical energy absorption of ZnO nanopillars[J]. MATERIALS TODAY COMMUNICATIONS,2021,29:8.
APA	王军,Zhou M,杨荣,肖攀,柯孚久,&卢春生.(2021).Repeatable mechanical energy absorption of ZnO nanopillars.MATERIALS TODAY COMMUNICATIONS,29,8.
MLA	王军,et al."Repeatable mechanical energy absorption of ZnO nanopillars".MATERIALS TODAY COMMUNICATIONS 29(2021):8.