IMECH-IR  > 非线性力学国家重点实验室
Repeatable mechanical energy absorption of ZnO nanopillars
Wang J(王军)1; Zhou M2; Yang R(杨荣)1; Xiao P(肖攀)1; Ke FJ(柯孚久)3; Lu CS(卢春生)4
Corresponding AuthorZhou, Min(min.zhou@gatech.edu)
Source PublicationMATERIALS TODAY COMMUNICATIONS
2021-12-01
Volume29Pages:8
AbstractWe 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.
KeywordZnO nanopillars Repeatable energy absorption Phase transformation Inversion domain boundary Molecular dynamics
DOI10.1016/j.mtcomm.2021.102904
Indexed BySCI ; EI
Language英语
WOS IDWOS:000712156400004
WOS KeywordINVERSION DOMAIN BOUNDARY ; MOLECULAR-DYNAMICS ; SIMULATION ; SYSTEMS
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
Funding ProjectNational 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
Funding OrganizationNational 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
Classification二类
Ranking1
ContributorZhou, Min
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/87911
Collection非线性力学国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China;
2.Georgia Inst Technol, GWW Sch Mech Engn, Atlanta, GA 30332 USA;
3.Beihang Univ, Sch Phys, Beijing 100191, Peoples R China;
4.Curtin Univ, Sch Civil & Mech Engn, Perth, WA 6845, Australia
Recommended Citation
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.
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