【作者】 刘惠文； 薛群基；

【Author】 Huiwen Liu Qunji Xue (Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China)

【机构】 中国科学院兰州化学物理研究所固体润滑开放研究实验室；

【摘要】 研究了TZP陶瓷在室温至600℃范围内的摩擦学特性及磨损机制,结果表明,TZP陶瓷在室温时的磨损机制是表面断裂:在200℃时由于对偶Si3N4陶瓷表面发生了氧化及水解反应,形成的柱状磨屑起到了滚动轴承的作用,所以TZP／Si3N4摩擦副表现出最低的摩擦系数和最佳的抗磨性能:在600℃下 TZP陶瓷发生了严重的表面断裂和磨粒磨损。更多还原

【Abstract】 The tribological properties and wear mechanisms of TZP ceramics up to 600℃ have been investigated. Under ambient temperature the wear mechanism of TZP ceramics is surface fracture. Under 200 ℃, forming of cylinder-like wear debris on Si3N4 ceramics as a result of chemical reaction with O2 and H2O, which acted as rolling bearing, TZP/Si3N4 sliding couple exhibits the lowest friction coefficient and wear rate. However, up to 600 ℃, TZP ceramics take very serious wear due to surface fracture and abrasive wear.更多还原