Materials Reports  2020, Vol. 34 Issue (Z1): 567-571 |
| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Research on Friction and Wear Properties of DLC-PFPE Solid-Liquid CompositeLubrication System |
| XU Jun1, ZHU Lijian2, LIU Gang1, SONG Bingke1
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1 Shanghai Institute of Spacecraft Equipment, Shanghai 200240, China;
2 Shanghai Xinli Power Equipment Institute, Shanghai 200125, China |
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Abstract Good lubrication is the key to ensure the life and reliability of space moving parts. At present, space motion mechanisms use a single solid lubrication or grease lubrication which has its own defects. In this paper, aiming to improve the life and reliability of space lubrication, effects of deposition process parameters on the friction and wear properties and behavior of diamond-like carbon (DLC) films under PFPE grease lubrication conditions were investigated. Based on the above research, the optimal deposition process of the DLC film was determined. The friction and wear test of solid-liquid composite lubrication system was carried out. Result showed that the friction coefficient was less than 0.15, the friction life was more than 2.1×106 r at atmospheric environment; and the friction coefficient was less than 0.1, the friction life was more than 2.11×106 r at vacuum environment.
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Published: 01 July 2020
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| Fund:This work was financially supported by the National Key R&D Program of China (2017YFA0204600), Independent R&D Project of Shanghai Aerospace (ZY2018-65). |
| About author:: Jun Xu, senior engineer, graduated from University of Chinese Academy of Sciences in 2013 with a Ph.D. degree in optics. He has been working in Shanghai Satellite Equipment Research Institute since 2013, and is mainly engaged in satellite manufacturing technology and space integrated environment simulation and testing. Published 10 papers and applied for 5 patents. |
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