中文摘要：

采用真空热压技术，以含0．3％Al2O3的弥散铜为基体，通过调配润滑组元MoS2和高温组元Mo的含量，以期改善铜基复合材料的耐高温、导电、耐磨损等综合性能。研究结果表明：耐磨自润滑复合材料材料显微组织由基体铜相、铜钼硫化合物以及少量游离存在的金属Mo组成；随着MoS2含量的增加，基体铜相不断减少，铜钼硫化合物所占比例增大，并连接成断续的网状，基体铜相被轻微割裂。而随着Mo含量的增多，游离的No颗粒和铜铝硫化合物易发生团聚。加入润滑组元MoS，则使复合材料的导电率减少，高温组元Mo使复合材料的导电率和硬度增加，0．3％Al2O3弥散铜-1％MoS2-7％Mo复合材料具备良好的抗高温摩擦磨损性能。

英文摘要：

In order to improve the combination properties of the copper-based composite materials, such as high temperature resistance, electric conduction and wear resistance etc., dispersion copper- MoS2-Mo antiwear self- lubrication composite materials were prepared based on the dispersion copper with 0.3 wt. % Al2O3 by means of vacuum hot pressing technology. The results show that the microstructure of the composite materials was composed of copper matrix phase, copper-molybdenum-sulfur compound and a little of dissociative Mo. With the increase of the MoS2 content, the volume fraction of matrix copper phase decrease; however, the volume fraction of copper- molybdenum-sulfur compound increase. The copper-molybdenum-sulfur compound connect into interrupted nets, and the copper matrix phases are slightly isolated. With the increase of Mo content, the dissociative Mo particles and copper-molybdenum-sulfur compound are agglomerated easily. The electric conductivity increase with the increase of the Mo; however, the electric conductivity decrease t＇or additive of MoS2 . The 0. 3 wt. % Al2O3-1 wt. % MoS2- 7 wt.% Mo dispersion copper ,composite material possess an excellent high conductivity, high wear resistance properties.