CHEN Xiaohu

（Hua Qiao University）

Abstract: The ceramic friction materials containing h－BN as solid lubricant component to utilize its better lubrication property have been synthesized．The tribolocial properties of the ceramic friction materials have also been investigated using pin－on－disc wear experiment．The experimental results showed that the friction stability of ceramic friction materials improved obviously because of solid lubrication on the friction process．Comparing with powder metallurgy friction materials‚the Al₂O₃－based ceramic friction materials have higher friction coefficient‚lower wear rate and good friction stability． 

Keywords: Al₂O₃‚h－BN‚friction materials‚friction and wear