First-Principles Study of the Friction and Wear Resistance of Graphene Sheets
文献类型：期刊论文
| 作者 | Ling, Wei Dong1; Wei, Pan1; Duan, Ji Zheng2; Chen, Jian Min3; Duan, Wen Shan1 |
| 刊名 | TRIBOLOGY LETTERS
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 65页码:8 |
| 关键词 | Tribology performance Adhesion Dangling bonds Wear resistance Flexible electrons Hydrogen passivation |
| ISSN号 | 1023-8883 |
| DOI | 10.1007/s11249-017-0834-8 |
| 英文摘要 | 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. |
| WOS关键词 | SLIDING STEEL SURFACES ; DIAMOND-LIKE-CARBON ; PYROLYTIC-GRAPHITE ; SOLID LUBRICANT ; LAYER GRAPHENE ; FILMS ; VACUUM ; ENERGY ; NANOTUBES ; TRIBOLOGY |
| 资助项目 | National Natural Science Foundation of P. R. China[11547304] ; National Natural Science Foundation of P. R. China[11647313] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000401437000023 |
| 出版者 | SPRINGER/PLENUM PUBLISHERS |
| 资助机构 | National Natural Science Foundation of P. R. China |
| 源URL | [http://119.78.100.186/handle/113462/44817]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Duan, Wen Shan |
| 作者单位 | 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 |
| 推荐引用方式 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,2017,65:8. |
| APA | Ling, Wei Dong,Wei, Pan,Duan, Ji Zheng,Chen, Jian Min,&Duan, Wen Shan.(2017).First-Principles Study of the Friction and Wear Resistance of Graphene Sheets.TRIBOLOGY LETTERS,65,8. |
| MLA | Ling, Wei Dong,et al."First-Principles Study of the Friction and Wear Resistance of Graphene Sheets".TRIBOLOGY LETTERS 65(2017):8. |
入库方式： OAI收割
来源：近代物理研究所
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