锰方硼石对铜基摩擦材料摩擦性能的影响

Effect of chambersite on friction and wear behavior ofCn.based friction materialGong Lili，Cao Lin，Jia Chengchang，Liang Dong，Shu Xiaoning(School of Materials Science and Engineering，University of Science and Technology Beijing，Beijing 100083，China)Abstract：In order to expand the application field of chambersite，improve performance of Cu-based friction material，the Cu-based friction material containing chambersite powder miled for 30min with 0.5wt% .1.0wt% content wasprepared by SPS.Comparison was made with sample without chambersite.The hardness，density，friction coeficientand wear rate of three kinds of samples were analyzed. It indicates that the sample has higher hardness，the moststable friction coeficient(average friction coeficient is 0.218)，and the smallest wear rate when chambersite contentis 0.5wt% .SEM analysis shows that abrasion mechanism is adhesive wear and abrasion wear。

Key words：chambersite；wear rate；adhesive wear；abrasion wear铜基粉末冶金摩擦材料具有导热性和耐热性好、摩擦系数低以及耐磨损等特点，目前已被广泛用作航空飞机和高速列车的制动材料。铜基粉末冶金摩擦材料通常由几种甚至十几种组元组成 ，这些组元按其作用可分为基体组元、润滑组元和摩擦组元。SiO (石英砂 )因其价格便宜