本文对氮化硅陶瓷材料在不同湿度的三种气体(空气、氮气、氩气)环境中的摩擦、磨损特性进行了试验研究(摩擦面无润滑)。结果表明,对于上述三种气体,干燥时的摩擦系数小而磨损量大,加湿时的摩擦系数大而磨损量小。比较三种干燥气体,空气中的磨损量最小,氩气中的最大;而对于加湿气体,则氩气中的磨损量最小而空气中的最大。 In this paper, the friction and wear properties of silicon nitride ceramics in three kinds of gases with different humidities (air, nitrogen and argon) were studied (frictionless surface lubrication). The results show that for the above three gases, the coefficient of friction during drying is small, the amount of wear is large, the coefficient of friction during humidification is large, and the amount of wear is small. Comparing the three dry gases, the amount of wear in the air is minimal and the amount in argon is greatest; for humidified gases, the amount of wear in argon is minimal and the air is the largest.