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Self-healing of fractured one-dimensional brittle nanostructures
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; Liao XZ; Gao HJ; Wang, J; Curtin Univ Technol, Dept Mech Engn, Perth, WA 6845, Australia.
Source PublicationEPL
AbstractRecent experiments have shown that fractured GaAs nanowires can heal spontaneously inside a transmission electron microscope. Here we perform molecular-dynamics simulations to investigate the atomic mechanism of this self-healing process. As the distance between two fracture surfaces becomes less than 1.0 nm, a strong surface attraction is generated by the electrostatic interaction, which results in Ga-As re-bonding at the fracture site and restoration of the nanowire. The results suggest that self-healing might be prevalent in ultrathin one-dimensional nanostructures under near vacuum conditions.
KeywordResolution Electron-microscopy Zinc-oxide Nanocrystallites Gaas Nanowires Ambient-temperature Molecular-dynamics Behavior Gold Zno
Subject Area损伤、破坏机理和微结构演化
Indexed BySCI
WOS IDWOS:000302932900033
Funding OrganizationThis work was supported by the Australian Research Council (Grant No. DP0985450), the National Natural Science Foundation of China (Grant Nos. 11172024, 11172305, 10932011, 11072014, 10972218 and 11021262), the National Basic Research Program of China (2012 CB937500), the China Postdoctoral Science Foundation (2011M500211), the Research Grant Council of the Hong Kong Special Administrative Region, China (Project No. 9041679 (CityU 120611)) and the U.S. National Science Foundation (CMMI-0758535). Computations were performed on computer clusters at the CNIC super-computing Center and iVEC through the use of advanced computing resources located at iVEC@ARRC. Partially computational resources were provided by Intersect Australia Ltd.
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorWang, J; 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 of fractured one-dimensional brittle nanostructures[J]. EPL,2012,98(1):16010.
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 of fractured one-dimensional brittle nanostructures.EPL,98(1),16010.
MLA 王军,et al."Self-healing of fractured one-dimensional brittle nanostructures".EPL 98.1(2012):16010.
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