钢纤维与硅氧铝陶瓷纤维对树脂基摩擦材料性能的影响

Effects of steel fiber and aluminum-silicon ceramic fiber on friction and wear performances of resin-based friction material

钢纤维和陶瓷纤维由于各自的特性在摩擦材料行业中成为非常重要的非石棉纤维。采用粉末冶金法制备纤维增强树脂基摩擦材料,对比研究以钢纤维和硅氧铝陶瓷纤维作为增强材料对树脂基摩擦材料摩擦和磨损性能的影响。结果表明,硅氧铝陶瓷纤维和钢纤维对材料摩擦因数和磨损率的影响均较复杂;钢纤维的添加量(质量百分数)为20%～25%、硅氧铝陶瓷纤维的添加量(质量分数)为5%～10%时,摩擦材料具有较好的摩擦和磨损性能;SEM分析表明,在高温下以钢纤维增强的树脂基摩擦材料,其主要磨损形式为热分解磨损和粘着磨损,而以硅氧铝陶瓷纤维增强的树脂基摩擦材料,其主要磨损形式为热分解磨损和磨粒磨损。

Steel fiber and ceramic fiber are two very important non-asbestos fibers in the friction materials industry due to their respective characteristic.Steel fiber is now one of the most widely used fibers in friction materials,and ceramic fiber is now also one of the most popular research objects in friction materials areas.The effects of steel fiber and aluminum-silicon ceramic fiber as reinforcing materials on the friction and wear performance of the resin-based friction material were studied and compared.The results show that,there exists a complex relationship between the adding amount of reinforcing fiber and the sample＇s friction coefficients or wear rates;Within the studied formulation system,mass fraction of 20% to 25% of steel fiber addition amount is the best for the resin-based friction material,and mass fraction of 5% to 10% of aluminum-silicon ceramic fiber addition amount is the best for the resin-based friction material,when the resin-based friction materials has excellent friction and wear performances;SEM analysis shows that at high temperature the main wear type of steel fiber-reinforced resin-based friction material is thermal dissolution wear and adhesion wear,while the main wear type of aluminum-silicon ceramic fiber-reinforced resin-based friction material is thermal dissolution and abrasive wear.