Abstract
This experimental study concerns the tribological properties of different carbon/porous silicon carbide couples. The aim of this is to characterize the optimum friction couple (carbon/silicon carbide) for dynamic sealing elements in automotive water pumps. A tribometer was used to determine the wear of these material couples. The parameters able to influence the wear, namely the surface finish of the porous silicon carbide material, the quality of the carbon material, the normal load, the surroundings and the speed (in the case of dynamic friction), have been studied. It is evident from this study that the estimated average wear calculated by an empirical mathematical model is reliable except under conditions of extreme friction.
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