Structural changes of the friction surface and wear resistance of a ZrO2-Y2O3 ceramic

Quantitative parameters of the surface structures and the wear resistance o f a ZrO2-Y2O3 ceramic tested by friction on a steal disk have been determin ed. It is shown that the friction contact gives rise to quasiperiodic crack s on the friction surface of the ceramic and leads to the formation of a tr ansfer layer. It is established that the wear intensity correlates with the intercrack spacing along the sliding direction and the amount of the steel counterbody elements on the ceramic surface. (C) 2000 MAIK "Nauka/Interper iodica".