| Changes in the composition, structure and friction property of sputtered MoS2 films by LEO environment exposure | |
| Department | 先进润滑与防护材料研究发展中心 |
Gao XM(高晓明) ; Hu M(胡明); Sun JY(孙嘉奕); Fu YL(伏彦龙); Yang J(杨军); Liu WM(刘维民); Weng LJ(翁立军); Weng LJ(翁立军)
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| The second department | 固体润滑国家重点实验室 |
| 2015 | |
| Source Publication | Applied Surface Science
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| ISSN | 0169-4332 |
| Volume | 330Pages:30-38 |
| Abstract | Radio frequency-sputtered MoS2 films had been exposed for 43.5 h in real low earth orbit (LEO) space environment by a space environment exposure device (SEED) aboard China Shenzhou-7 manned spaceship. The composition, morphology, phase structure and friction property of the exposed films were investigated using X-ray photoelectron spectroscope (XPS), X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), X-ray energy-dispersive spectroscopy (EDS) and ball-on-disk tribometer. XRD and EDS results revealed that the as-deposited MoS2 films were characterized by a MoSxOy phase structure, in which x and y values were determined to be similar to 0.65 and 1.24, respectively. XPS analysis revealed that due to space atomic oxygen attack, the film surface was oxidized to MoO3 and MoSxOy with higher O concentration, while the partial S was lost. However, the affected depth was restricted within the surface layer because of protective function of the oxidation layer. As a result, the friction coefficient only exhibited a slight increase at initial stage of sliding friction. |
| Keyword | Leo Atomic Oxygen Mos2 Films |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.apsusc.2014.12.175 |
| Funding Organization | China National Natural Science Foundation (Grant No. 51227804) |
| Indexed By | SCI |
| If | 3.150 |
| Language | 英语 |
| Funding Project | PVD润滑薄膜组;空间润滑材料组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/18842 |
| 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 | Weng LJ(翁立军) |
| Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Gao XM,Hu M,Sun JY,et al. Changes in the composition, structure and friction property of sputtered MoS2 films by LEO environment exposure[J]. Applied Surface Science,2015,330:30-38. |
| APA | Gao XM.,Hu M.,Sun JY.,Fu YL.,Yang J.,...&翁立军.(2015).Changes in the composition, structure and friction property of sputtered MoS2 films by LEO environment exposure.Applied Surface Science,330,30-38. |
| MLA | Gao XM,et al."Changes in the composition, structure and friction property of sputtered MoS2 films by LEO environment exposure".Applied Surface Science 330(2015):30-38. |
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