TRIBOLOGICAL PROPERTIES OF COMPOSITE MATERIALS CONTAINING GLASSY CARBON
Journal Title: Tribologia - Year 2011, Vol 238, Issue 4
Abstract
The study focuses on an influence of glassy carbon as an additive allowing the development of tribological properties of different polymer-matrix and metal-matrix composite materials. Conducted research has shown that addition of glassy carbon to the composite contributes to a change in the friction coefficient and in wear. Mass fraction and average particle diameter determine the change. Good physical and chemical properties of glassy carbon also cause a limitation of processes connected with thermal degradation of the composite structure. It especially concerns in the polymer-matrix composites. It could be observed in these materials that 6–10% addition of glassy carbon contributed to the reduction of surface areas in which thermal degradation processes occurred. Moreover, the temperature at which a violent decrease in the friction coefficient was increased by about 50oC. The results of conducted research confirmed the possibility of control over the change of tribological properties in the composites containing glassy carbon.<br/><br/>
Authors and Affiliations
Jerzy Myalski
Keywords
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