First-Principles Study of the Friction and Wear Resistance of Graphene Sheets | |
Department | 先进润滑与防护材料研究发展中心 |
Ling, Wei Dong1; Wei, Pan1; Duan, Ji Zheng2; Chen JM(陈建敏)3; Duan WS(段文山)1; Duan WS(段文山) | |
The second department | 固体润滑国家重点实验室 |
2017 | |
Source Publication | Tribology Letters |
ISSN | 1023-8883 |
Volume | 65Pages:53(1-8) |
Abstract | Recent researches have already shown that graphene can be a very promising candidate for reducing friction and wear by being coated on various moving mechanical assemblies. Although its excellent lubricative properties have been examined in different environments experimentally, the effect of conditions on graphene tribology performance are not well-understood. This research demonstrates the friction and wear mechanisms of graphene at nanoscale by first-principles calculations performed under two different conditions: in vacuum and in hydrogen. Besides, this report has revealed the difference of tribological performance between graphene coating and graphite powder in vacuum. It is shown that the graphene coating has lower adhesion than graphite powder because of less dangling bonds. Furthermore, with the perfect lamellar structure and low surface energy, graphene sheets exhibits promising wear resistance. Additionally, the adhesion and wear resistance of graphene sheets can be improved by hydrogen-induced flexible electrons. The computational simulations show that the higher adhesion originates from hydrogen adsorption. It is really helpful for the ruptured graphene to extend the wear life by hydrogen passivation. |
Keyword | Tribology Performance Adhesion Dangling Bonds Wear Resistance Flexible Electrons Hydrogen Passivation |
Subject Area | 材料科学与物理化学 |
DOI | 10.1007/s11249-017-0834-8 |
Funding Organization | the National Natural Science Foundation of P. R. China (11547304;11647313) |
Indexed By | SCI |
If | 1.891 |
Language | 英语 |
Funding Project | 磨损与表面工程研究组 |
compositor | 第三作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21911 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Duan WS(段文山) |
Affiliation | 1.Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Ling, Wei Dong,Wei, Pan,Duan, Ji Zheng,et al. First-Principles Study of the Friction and Wear Resistance of Graphene Sheets[J]. Tribology Letters,2017,65:53(1-8). |
APA | Ling, Wei Dong,Wei, Pan,Duan, Ji Zheng,Chen JM,Duan WS,&段文山.(2017).First-Principles Study of the Friction and Wear Resistance of Graphene Sheets.Tribology Letters,65,53(1-8). |
MLA | Ling, Wei Dong,et al."First-Principles Study of the Friction and Wear Resistance of Graphene Sheets".Tribology Letters 65(2017):53(1-8). |
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art%3A10.1007%2Fs112(2300KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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