In order to promote the friction and wear properties of cermet materials, an advanced Ti(C,N) self-lubricating cermet materials with the addition of ceramic coated nano-sized solid lubricant powders (CaF₂@Al₂O₃) was developed. The friction and wear properties of Ti(C,N) self-lubricating cermet materials were studied by spherical disk matching. Results showed that the optimal content of CaF₂@Al₂O₃ powders was 10 vol%, and the addition of CaF₂@Al₂O₃ powders significantly reduced the friction coefficient of cermet. Meanwhile, the multilayer core-shell microstructure can significantly improve the wear resistance of Ti(C,N) based cermet. The higher temperature on the friction contact area made CaF₂ change from brittle state to plastic state, which was evenly coated on the friction surface to form the self-lubricating film. On the one hand, as the load increased, the friction coefficient of cermet with multilayer core-shell microstructure decreased, but the wear rate increased. On the other hand, as the friction speed increased, the friction coefficient first increased slightly, then decreased gradually, and then continues to increase after decreasing to the minimum value. Besides, the wear rate first decreased and then increased with the increase of speed. The formation of multilayer core-shell microstructure has good wear-resistance effects on Ti(C,N) cermet, and the decrease of friction coefficient is mainly due to the addition of CaF₂.

为了提高金属陶瓷材料的摩擦磨损性能，开发了一种添加陶瓷涂层纳米级固体润滑剂粉末（CaF ₂ @Al ₂ O ₃）的先进Ti(C,N)自润滑金属陶瓷材料。采用球盘匹配法研究了Ti(C,N)自润滑金属陶瓷材料的摩擦磨损性能。结果表明，CaF ₂ @Al ₂ O ₃粉体的最佳含量为10 vol%，CaF ₂ @Al ₂ O _{3 的添加量}粉末显着降低了金属陶瓷的摩擦系数。同时，多层核壳显微组织可以显着提高Ti(C,N)基金属陶瓷的耐磨性。摩擦接触区域的较高温度使 CaF ₂由脆性状态转变为塑性状态，均匀地涂在摩擦面上形成自润滑膜。一方面，随着载荷的增加，具有多层核壳微观结构的金属陶瓷的摩擦系数降低，但磨损率增加。另一方面，随着摩擦速度的增加，摩擦系数先小幅增加，然后逐渐减小，减小到最小值后继续增大。此外，磨损率随着速度的增加先降低后增加。多层核壳微观结构的形成对Ti(C,N)金属陶瓷具有良好的耐磨性，摩擦系数的降低主要是由于CaF _{2 的加入}。