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Griffith Criterion for Brittle Fracture in Graphene
Yin HQ; Qi HJ; Fan FF; Zhu T; Wang BL(王宝林); Wei YJ(魏宇杰); Wei, YJ (reprint author), Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China.
2015-01
发表期刊NANO LETTERS
卷号15期号:3页码:1918-1924
ISSN1530-6984
摘要There are prevailing concerns with the critical dimensions when conventional theories break down. Here we find that the Griffith criterion remains valid for cracks down to 10 rim but overestimates the strength of shorter cracks. We observe the preferred crack extension along the zivag edge in graphene, and explain this phenomenon by local strength-based failure rather, than energy-based Griffith criterion. These results provide a mechanistic basis for reliable applications of graphene in miniaturized: devices and nanocomposites.
关键词Griffith Criterion Graphene Fracture Edge Energy Molecular Dynamics
学科领域Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
DOI10.1021/nl5047686
URL查看原文
收录类别SCI ; EI
语种英语
WOS记录号WOS:000351188000072
关键词[WOS]POLYCRYSTALLINE GRAPHENE ; INTRINSIC STRENGTH ; GRAIN-BOUNDARIES ; SHEETS
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
项目资助者NSFC [11425211, 11021262, 11272327] ; MOST 973 of China [2012BC937500] ; AFOSR [FA9550-13-1-0088] ; NSF [CMMI-1100205]
课题组名称LNM微结构计算力学(筹)
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/49908
专题非线性力学国家重点实验室
通讯作者Wei, YJ (reprint author), Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China.
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GB/T 7714
Yin HQ,Qi HJ,Fan FF,et al. Griffith Criterion for Brittle Fracture in Graphene[J]. NANO LETTERS,2015,15(3):1918-1924.
APA Yin HQ.,Qi HJ.,Fan FF.,Zhu T.,Wang BL.,...&Wei, YJ .(2015).Griffith Criterion for Brittle Fracture in Graphene.NANO LETTERS,15(3),1918-1924.
MLA Yin HQ,et al."Griffith Criterion for Brittle Fracture in Graphene".NANO LETTERS 15.3(2015):1918-1924.
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