Friction and wear behavior of self-lubricating ZrO2(Y2O3)–CaF2–Mo–graphite composite from 20 °C to 1000 °C

In order to lubricate ZrO2 ceramic, a series of ZrO2 matrix high-temperature self-lubricating composites were designed and prepared by hot-press technique. It was found that the ZrO2(Y2O3)–CaF2–Mo–graphite system showed a good tribological behavior at both low and high temperatures. The wear mechanism of the composite was investigated in detail.