SiO_2和SiC对Cu-Fe基烧结摩擦材料性能的影响

Effect of SiO_2 and SiC on properties of Cu-Fe matrix sintered friction materials

研究了在Cu Fe基烧结摩擦材料中SiO2 和SiC对材料的力学性能特别是摩擦磨损性能的影响。结果表明 :添加SiO2 摩擦材料的抗弯强度和摩擦因数分别为 141MPa和 0 .2 77,添加SiC的分别为 89MPa和 0 .2 5 5 ,添加SiO2 +SiC的分别为 10 9MPa和 0 .2 5 5。添加SiO2 的摩擦材料磨损量为后两者的 2倍 ,而添加SiC和SiO2 +SiC的摩擦材料对对偶的磨损量比前者约大 10倍。

The effect of SiO 2 and SiC on the physical and mechanical properties, especially friction and wear characteristics of Cu Fe based sintering friction materials has been studied. The results show that bending strength of the materials which contains SiO 2 reaches 141?MPa, and only 89?MPa for the material which contains SiC. The friction coefficient of the former is higher than that of the latter, but its wear amount is twice as high as that of the latter. The wear amount of its matching material is very low. Adversely, the wear amount of the matching material of the material which contains SiC is rather high.