Affiliation:
1. China Academy of Space Technology
Abstract
A type of PTFE/MoS2/glass fiber composite has been used as bearing cage material. To study the friction properties, the tests have been performed under various parameters on block-on-ring. The experimental results were as follows: Wear rate of the polymer composites was dramatically affected by test duration. With increase of test duration, the wear rate rapidly decreased. At the sliding velocity of 1.83m/s and load of 45N, the highest wear rate was 8.85×10-15m3/N·m in the test of duration 0.5h, while the lowest was 0.88×10-15m3/N·m in the test of duration 10h (the minimum and maximum times examined).
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference14 articles.
1. Mike Buttery, SPACE TRIBOLOGY Course 2011, ESR Technology Ltd. 2011, 249-250.
2. L. Fusaro Robert, Self-Lubricating Polymer Composites and Polymer Transfer Film Lubrication for Space Applications, NASA Technical Memorandum, 1990, 102492, 3-4.
3. Jaydeep Khedkar, Ioan Negulescu, Efstathios Meletis I. Sliding wear behavior of PTFE composites, Wear 2002, 252, 361–9.
4. J. R. Jones, M. N. Gardos, Transfer Film Formation by Lubricative Composites, Proc. Int. Conf. Solid Lubricant, 1971, 185-197.
5. Dinghan Xiang, Zhengjun Yao, Jianping Wen, Experimental investigation on dry frictional behavior of the two self-lubricating composites under heavy loading conditions, Mater. Lett., 2005, 59, 2352–2356.