(中南大學(xué) 粉末冶金國(guó)家重點(diǎn)實(shí)驗(yàn)室，長(zhǎng)沙 410083)
摘 要: 研究了在Cu-Fe基燒結(jié)摩擦材料中SiO2和SiC對(duì)材料的力學(xué)性能特別是摩擦磨損性能的影響。結(jié)果表明：添加SiO2摩擦材料的抗彎強(qiáng)度和摩擦因數(shù)分別為141*#MPa和0.277，添加SiC的分別為89 MPa和0.255，添加SiO2+SiC的分別為109*#MPa和0.255。添加SiO2的摩擦材料磨損量為后兩者的2倍，而添加SiC和SiO2+SiC的摩擦材料對(duì)對(duì)偶的磨損量比前者約大10倍。
關(guān)鍵字: Cu-Fe基合金； 燒結(jié)摩擦材料； SiO2； SiC
matrix sintered friction materials
（State Key Laboratory for Powder Metallurgy,
Central South University, Changsha 410083, P.R.China）
Abstract:The effect of SiO2 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 SiO2 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.
Key words: Cu-Fe based alloy; sintered friction material; SiO2; SiC
