The Al₂O₃-MoS₂ ceramic-based lubricating coating was prepared via introducing MoS₂ dry film lubricant into the micro-defects of thermally sprayed Al₂O₃ coating by paint spraying method. The microstructure, mechanical properties and tribological behaviors of the as-received Al₂O₃-MoS₂ coating are thoroughly evaluated. The results illustrated that MoS₂ was mainly concentrated on the shallow surface of the Al₂O₃ coating, and thus more compact and smoother Al₂O₃-MoS₂ coating was obtained. Meanwhile, the mechanical properties of the Al₂O₃ coating did not change significantly after the introduction of MoS₂. The tribological experiments illustrated that compared with the Al₂O₃ coating, the friction coefficient and specific wear rate of the Al₂O₃-MoS₂ coating under different loads were greatly reduced due to the generation of the lubricating layer. Especially under the load of 5 N, the friction coefficient was as low as 0.36, and the wear rate (1.49 × 10⁻⁵ mm³ (N m)⁻¹) was about one order of magnitude lower than that of Al₂O₃ coating (2.53 × 10⁻⁴ mm³ (N m)⁻¹). This research established a new and simple way to prepare ceramic-based self-lubricating coatings by using temperature-sensitive solid lubricants.

采用喷漆法将MoS ₂干膜润滑剂引入热喷涂Al ₂ O ₃涂层的微缺陷中，制备Al ₂ O ₃ -MoS ₂陶瓷基润滑涂层。对原样的 Al ₂ O ₃ -MoS ₂涂层的微观结构、机械性能和摩擦学行为进行了彻底评估。结果表明，MoS ₂主要集中在Al ₂ O ₃涂层的浅表面，因此Al ₂ O ₃ -MoS ₂涂层更致密和光滑得到涂层。同时，引入MoS ₂后Al ₂ O ₃涂层的力学性能没有显着变化。摩擦学实验表明，与Al ₂ O ₃涂层相比，Al ₂ O ₃ -MoS ₂涂层在不同载荷下的摩擦系数和比磨损率由于润滑层的产生而大大降低。特别是在5 N载荷下，摩擦系数低至0.36，磨损率（1.49×10 ^-5  mm ³  (N m) ^-1)比Al ₂ O ₃涂层(2.53×10 ^-4  mm ³  (N m) ^-1 )低一个数量级。该研究建立了一种使用温度敏感固体润滑剂制备陶瓷基自润滑涂层的新方法和简单方法。