Influences of Space Irradiations on the Structure and Properties of MoS2/DLC Lubricant Film | |
Department | 先进润滑与防护材料研究发展中心 |
Wu YX(吴艳霞)1; Liu, Ying1; Yu, Shengwang1; Zhou, Bing1; Tang, Bin1; Li HX(李红轩)2; Chen JM(陈建敏)2; Wu YX(吴艳霞) | |
The second department | 固体润滑国家重点实验室 |
2016 | |
Source Publication | Tribology Letters |
ISSN | 1023-8883 |
Volume | 64Pages:24(1-10) |
Abstract | This work aims at revealing the influences of space irradiations [including the atomic oxygen (AO) and ultraviolet (UV) irradiations] on the MoS2/DLC solid lubricating film. The changes on microstructure, mechanical and vacuum tribological properties of nanocomposite films after irradiations have been systematically investigated. It is found that the AO irradiation mainly induces the surface oxidation of the film, whereas some oxygen atoms can erode the bulk film along the defects highway; thus, the connectivity of carbon atoms is improved. In contrast, the UV irradiation may break the carbon bonds and functional groups, as well as induce a secondary radical formation, which accelerates the broken and recombination of the carbon chain scission. Specially, the films after irradiations exhibit much higher hardness (>19 GPa), lower friction coefficient (<0.02) and wear rate compared with the original one. The excellent tribological properties of the films after irradiations can be attributed to the synergistic effect of the high sp3 C content and good crystallization of MoS2 in the film, which cause the lower carbon and higher MoS2 content in the wear debris at the contact interface. |
Keyword | Mos2/dlc Composite Film Atomic Oxygen Irradiation Ultraviolet Irradiation Microstructure Vacuum Tribological Properties |
Subject Area | 材料科学与物理化学 |
DOI | 10.1007/s11249-016-0759-7 |
Funding Organization | the National Natural Science Foundation of China (Grant No. 51505318);the Youth Foundation of Taiyuan University of Technology (No. 1205-04020102) |
Indexed By | SCI |
If | 1.891 |
Language | 英语 |
Funding Project | 磨损与表面工程课题组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20991 |
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 | Liu, Ying; Wu YX(吴艳霞) |
Affiliation | 1.Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Wu YX,Liu, Ying,Yu, Shengwang,et al. Influences of Space Irradiations on the Structure and Properties of MoS2/DLC Lubricant Film[J]. Tribology Letters,2016,64:24(1-10). |
APA | Wu YX.,Liu, Ying.,Yu, Shengwang.,Zhou, Bing.,Tang, Bin.,...&吴艳霞.(2016).Influences of Space Irradiations on the Structure and Properties of MoS2/DLC Lubricant Film.Tribology Letters,64,24(1-10). |
MLA | Wu YX,et al."Influences of Space Irradiations on the Structure and Properties of MoS2/DLC Lubricant Film".Tribology Letters 64(2016):24(1-10). |
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