The role of graphene in Graphene-Filled carbon nanotube foam under compression and the corresponding microscopic deformation mechanism

doi:10.1016/j.matdes.2023.112043

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	The role of graphene in Graphene-Filled carbon nanotube foam under compression and the corresponding microscopic deformation mechanism
	Wang, Shuai ; Wang C(王超); Liang, Lihong; Chen, Shaohua
发表期刊	MATERIALS & DESIGN
	2023-07-01
卷号	231 页码:112043
ISSN	0264-1275
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/).
关键词	Carbon nanotube foam materials Graphene Compression Microscopic deformation mechanism
DOI	10.1016/j.matdes.2023.112043
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001054118200001
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
项目资助者	National Natural Science Founda- tion of China [12172035, 92160203, 11872114, 12032004, buctrc201930] ; Fundamental Research Funds for the Central Universities of China ; [12002034]
论文分区	二类/Q1
力学所作者排名	2
RpAuthor	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.
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/92650
专题	非线性力学国家重点实验室
作者单位	1.{Wang Shuai, Liang Lihong} Beijing Univ Chem Technol Coll Mech & Elect Engn Beijing 100029 Peoples R China 2.{Wang Chao} Chinese Acad Sci Inst Mech LNM Beijing 100190 Peoples R China 3.{Chen Shaohua} Inst Adv Struct Technol Beijing Inst Technol Beijing 100081 Peoples R China 4.{Wang Chao} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 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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