Toughening two dimensional materials through lattice disorder
文献类型：期刊论文
| 作者 | Xie WH(谢文慧) ; Zhang XB(张曦蓓); Wei YJ(魏宇杰); Gao, Huajian
|
| 刊名 | CARBON
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 213页码:9 |
| ISSN号 | 0008-6223 |
| 关键词 | Monolayer amorphous carbon Lattice disorder Toughening Rippling Graphene |
| DOI | 10.1016/j.carbon.2023.118268 |
| 通讯作者 | Wei, Yujie(yujie_wei@lnm.imech.ac.cn) ; Gao, Huajian(huajian.gao@ntu.edu.sg) |
| 英文摘要 | 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. |
| 分类号 | 一类 |
| WOS关键词 | REACTIVE FORCE-FIELD ; MECHANICAL-PROPERTIES ; INTRINSIC STRENGTH ; SUSPENDED GRAPHENE ; ELASTIC PROPERTIES ; FRACTURE ; DEFECTS ; TOUGHNESS ; CARBON ; SIZE |
| 资助项目 | 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 |
| WOS研究方向 | Chemistry ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001147674000001 |
| 资助机构 | NSFC Basic Science Center Program for 'Multiscale Problems in Nonlinear Mechanics ' ; Nanyang Technological University ; Agency for Science, Technology and Research (A*STAR) in Singapore |
| 其他责任者 | Wei, Yujie ; Gao, Huajian |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94249]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Xie WH,Zhang XB,Wei YJ,et al. Toughening two dimensional materials through lattice disorder[J]. CARBON,2023,213:9. |
| 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. |
入库方式： OAI收割
来源：力学研究所
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