Glassy carbon particles as component to modification of tribological properties

The paper presents the results of research concerned with the influence of a glassy carbon addition on the tribological properties of metallic and polymeric matrix composites. The research was conducted for two material groups: materials applied for friction lining in the automotive industry (polymeric matrix composites) and frictional materials with a metallic matrix. An addition of glassy carbon to friction composites with a polymeric matrix influences first of all the friction coefficient stability at an elevated temperature. An introduction of glassy carbon particles in a metallic matrix also makes the friction coefficient and wears decrease. The obtained composite can be used to produce sliding components cooperating at elevated temperatures, under high mechanical loads.