The role of graphene in Graphene-Filled carbon nanotube foam under compression and the corresponding microscopic deformation mechanism
文献类型：期刊论文
| 作者 | Wang, Shuai; Wang C(王超) ; Liang, Lihong; Chen, Shaohua
|
| 刊名 | MATERIALS & DESIGN
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 231页码:112043 |
| ISSN号 | 0264-1275 |
| 关键词 | Carbon nanotube foam materials Graphene Compression Microscopic deformation mechanism |
| DOI | 10.1016/j.matdes.2023.112043 |
| 英文摘要 | Graphene-filling significantly improves the compressive properties of carbon nanotube (CNT) foam (CF). However, the role of graphene in the graphene-filled CNT foam (GFCF) and the corresponding microscopic deformation mechanism, are still unclear. Here, coarse-grained numerical models of pure CF and GFCF are constructed based on molecular dynamics, and the role of graphene in GFCF and corresponding microscopic deformation mechanisms under compression are investigated. It is found that the compressive modulus of GFCF (5.3 MPa) is much larger than that of pure CF (0.7 MPa). The filling of graphene inhibits the aggregation of CNTs, enhances the dispersion of CNTs, impedes the rearrangement of CNTs, and ultimately improves the compressive modulus of the whole material by improving the bending ability of CNTs. It is further found that the compressive modulus of GFCF can be increased to a maximum of 7.4 MPa as the number of graphene flakes increases to 300, but remains almost the same as the graphene thickness increases. The results in this paper deepen the understanding of the microscopic mechanisms of GFCF and provide scientific guidance for the application of CNT and graphene-based materials.& COPY; 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| 分类号 | 二类/Q1 |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001054118200001 |
| 资助机构 | National Natural Science Founda- tion of China [12172035, 92160203, 11872114, 12032004, buctrc201930] ; Fundamental Research Funds for the Central Universities of China ; [12002034] |
| 其他责任者 | Liang, LH (corresponding author), Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China. ; Chen, SH (corresponding author), Inst Adv Struct Technol, Beijing Inst Technol, Beijing 100081, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92650]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.{Wang Chao} Chinese Acad Sci Inst Mech LNM Beijing 100190 Peoples R China 2.{Wang Shuai, Liang Lihong} Beijing Univ Chem Technol Coll Mech & Elect Engn Beijing 100029 Peoples R China 3.{Wang Chao} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 4.{Chen Shaohua} Inst Adv Struct Technol Beijing Inst Technol Beijing 100081 Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shuai,Wang C,Liang, Lihong,et al. The role of graphene in Graphene-Filled carbon nanotube foam under compression and the corresponding microscopic deformation mechanism[J]. MATERIALS & DESIGN,2023,231:112043. |
| APA | Wang, Shuai,王超,Liang, Lihong,&Chen, Shaohua.(2023).The role of graphene in Graphene-Filled carbon nanotube foam under compression and the corresponding microscopic deformation mechanism.MATERIALS & DESIGN,231,112043. |
| MLA | Wang, Shuai,et al."The role of graphene in Graphene-Filled carbon nanotube foam under compression and the corresponding microscopic deformation mechanism".MATERIALS & DESIGN 231(2023):112043. |
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来源：力学研究所
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