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Materials can be strengthened by nanoscale stacking faults
Wang J(王军); Shen YG; Song F(宋凡); Ke FJ(柯孚久); Bai YL(白以龙); Lu C; Wang, J (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.
Source PublicationEPL
2015-05
Volume110Issue:3Pages:36002
ISSN0295-5075
AbstractIn contrast to the strength of single crystals, stacking faults (SFs) are usually an unfavorable factor that weakens materials. Using molecular-dynamics simulations, we find that parallel-spaced SFs can dramatically enhance the strength of zinc-blende SiC nanorods, which is even beyond that of their single-crystal counterparts. Strengthening is achieved by restricting dislocation activities between nanoscale neighboring SFs and its overall upward trend is dominated by the volume fraction of SFs. The similar strengthening mechanism is also found in face-centered-cubic metals and their alloys. It is more promising than the traditional methods of decreasing nanoscale grains or twins due to the inverse Hall-Petch effect. This study sheds light on the structural design of nanomaterials with high strength. Copyright (C) EPLA, 2015
DOI10.1209/0295-5075/110/36002
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000356609500014
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China [11172024, 11232013, 11372022] ; National Basic Research Program of China [2012CB937500] ; Opening Fund of State Key Laboratory of Nonlinear Mechanics ; Research Grant Council of the Hong Kong Special Administrative Region, China [9041679 (CityU 120611)] ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ; Australian Research Council [DP0985450] ; Australian Government ; Government of Western Australia ; ScGrid of Supercomputing Center, Computer Network Information Center of the Chinese Academy of Sciences
DepartmentLNM材料的分子/细观统计力学行为
Classification二类/Q2
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/54959
Collection非线性力学国家重点实验室
Corresponding AuthorWang, J (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Wang J,Shen YG,Song F,et al. Materials can be strengthened by nanoscale stacking faults[J]. EPL,2015,110(3):36002.
APA Wang J.,Shen YG.,Song F.,Ke FJ.,Bai YL.,...&Wang, J .(2015).Materials can be strengthened by nanoscale stacking faults.EPL,110(3),36002.
MLA Wang J,et al."Materials can be strengthened by nanoscale stacking faults".EPL 110.3(2015):36002.
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