Wear and friction behavior of metal impregnated microporous carbon composites
- Cleveland State Univ., OH (United States). Chemical Engineering Dept.
- NYMA Inc., Cleveland, OH (United States). NASA-Lewis Research Center Group
- Istanbul Technical Univ. (Turkey). Dept. of Materials Science
Metal-matrix composites have been prepared by pressure-infiltration casting of copper-base alloy melts into microporous carbon preforms. The carbon preforms contained varying proportions of amorphous carbon and graphite. Load dependence of the wear and friction behavior of the composite pins has been examined under ambient conditions against cast-iron plates, using a pin-on-plate reciprocating wear tester. The wear resistance of the composite is significantly improved, as compared with the base alloy. Contrary to the normally expected behavior, the addition of graphite to the amorphous carbon does not reduce the friction coefficient, especially at high loads. The wear and friction behavior of the composites is very sensitive to the size and distribution of the microstructural constituents.
- Sponsoring Organization:
- National Aeronautics and Space Administration, Washington, DC (United States)
- OSTI ID:
- 413302
- Journal Information:
- Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Vol. 27, Issue 11; Other Information: PBD: Nov 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of environment and materials properties on the friction and wear behavior of precious metal electrical contact alloy couples
Influence of Temperature on Friction and Wear Characteristics of Polyaryletherketones and Their Composites Under Reciprocating Sliding Condition