| Toughening two dimensional materials through lattice disorder | |
Xie WH(谢文慧) ; Zhang XB(张曦蓓); Wei YJ(魏宇杰); Gao, Huajian
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| Corresponding Author | Wei, Yujie([email protected]) ; Gao, Huajian([email protected]) |
| Source Publication | CARBON
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| 2023-09-01 | |
| Volume | 213Pages:9 |
| ISSN | 0008-6223 |
| Abstract | Carbon-based two-dimensional (2D) materials, with graphene being the most prominent example, are some of the strongest materials existing today due to their covalent bonding but at the same time also the most fragile, with fracture toughness close to that of an ideally brittle solid, due to their intrinsic lack of effective dissipation mechanisms. Here, by investigating fracture mechanisms in monolayer amorphous carbon (MAC), we reveal a novel strategy to toughen 2D materials through lattice disorder. It is shown that lattice disorder results in rippling which can alleviate stress concentration in the vicinity of crack-tips and render MAC flaw tolerant. Consequently, MAC outperforms graphene in resisting brittle fracture and endures larger strain to failure in the presence of a preexisting crack. Our work sheds light on the mechanisms of crack propagation in MAC and also suggests that it might be generally possible to design tough 2D materials through lattice disorder. |
| Keyword | Monolayer amorphous carbon Lattice disorder Toughening Rippling Graphene |
| DOI | 10.1016/j.carbon.2023.118268 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001147674000001 |
| WOS Keyword | REACTIVE FORCE-FIELD ; MECHANICAL-PROPERTIES ; INTRINSIC STRENGTH ; SUSPENDED GRAPHENE ; ELASTIC PROPERTIES ; FRACTURE ; DEFECTS ; TOUGHNESS ; CARBON ; SIZE |
| WOS Research Area | Chemistry ; Materials Science |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary |
| Funding Project | NSFC Basic Science Center Program for 'Multiscale Problems in Nonlinear Mechanics '[11988102] ; Nanyang Technological University[002479 -00001] ; Agency for Science, Technology and Research (A*STAR) in Singapore |
| Funding Organization | NSFC Basic Science Center Program for 'Multiscale Problems in Nonlinear Mechanics ' ; Nanyang Technological University ; Agency for Science, Technology and Research (A*STAR) in Singapore |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Wei, Yujie ; Gao, Huajian |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94250 |
| Collection | 非线性力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Xie WH,Zhang XB,Wei YJ,et al. Toughening two dimensional materials through lattice disorder[J]. CARBON,2023,213:9.Rp_Au:Wei, Yujie, Gao, Huajian |
| APA | 谢文慧,张曦蓓,魏宇杰,&Gao, Huajian.(2023).Toughening two dimensional materials through lattice disorder.CARBON,213,9. |
| MLA | 谢文慧,et al."Toughening two dimensional materials through lattice disorder".CARBON 213(2023):9. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2023A227.pdf（1632KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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