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Self-healing in fractured GaAs nanowires
Wang J(王军); Lu CS(卢春生); Wang Q; Xiao P(肖攀); Ke FJ(柯孚久); Bai YL(白以龙); Shen YG; Wang YB; Chen B; Liao XZ; Gao HJ; Lu, CS; Curtin Univ Technol, Dept Mech Engn, Perth, WA 6845, Australia.
Source PublicationActa Materialia
AbstractMolecular dynamics simulations are performed to investigate a spontaneous self-healing process in fractured GaAs nanowires with a zinc blende structure. The results show that such self-healing can indeed occur via rebonding of Ga and As atoms across the fracture surfaces, but it can be strongly influenced by several factors, including wire size, number of healing cycles, temperature, fracture morphology, oriented attachment and atomic diffusion. For example, it is found that the self-healing capacity is reduced by 46% as the lateral dimension of the wire increases from 2.3 to 9.2 nm, and by 64% after 24 repeated cycles of fracture and healing. Other factors influencing the self-healing behavior are also discussed.
KeywordGaas Nanowires Self-healing Size Effect Multiple Healing Molecular Dynamics Resolution Electron-microscopy Zinc-oxide Nanocrystallites Ambient-temperature Molecular-dynamics Gold Nanowires Zno Nanowires Polymers Behavior Size
Subject Area损伤、破坏机理和微结构演化
Indexed BySCI ; EI
WOS IDWOS:000308842100020
Funding OrganizationThis work has been supported by the Australian Research Council (Grant Nos. DP0985450 and FT110100236), the National Natural Science Foundation of China (Grant Nos. 11172024, 11172305, 10932011, 11072014, 10972218 and 11021262), the National Basic Research Program of China (2012CB937500), the China Post-doctoral Science Foundation (2011M500211), the Opening Fund of State Key Laboratory of Nonlinear Mechanics, the Research Grant Council of the Hong Kong Special Administrative Region, China (Project No. 9041679 (CityU 120611)) and the US National Science Foundation (CMMI-0758535). Computations were performed on the LNM blade, computer clusters at the CNIC supercomputing Centre and iVEC through the use of advanced computing resources located at iVEC@ARRC. Partially computational resources were provided by the Intersect Australia Ltd.
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLu, CS; Curtin Univ Technol, Dept Mech Engn, Perth, WA 6845, Australia.
Recommended Citation
GB/T 7714
Wang J,Lu CS,Wang Q,et al. Self-healing in fractured GaAs nanowires[J]. Acta Materialia,2012,60(15):5593-5600.
APA 王军.,卢春生.,Wang Q.,肖攀.,柯孚久.,...&Curtin Univ Technol, Dept Mech Engn, Perth, WA 6845, Australia..(2012).Self-healing in fractured GaAs nanowires.Acta Materialia,60(15),5593-5600.
MLA 王军,et al."Self-healing in fractured GaAs nanowires".Acta Materialia 60.15(2012):5593-5600.
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