通过对陶瓷摩擦组元的表面进行化学镀铜来改善铜基粉末冶金摩擦材料中陶瓷相与基体间的结合效果,从而提高材料摩擦磨损性能.分别采用镀铜Al2(O3颗粒和未镀铜Al2O3颗粒与铜粉和铁粉等经混合、压制、加压烧结制备Al2O3-Fe-Sn-C/Cu摩擦磨损试样.测试并分析了摩擦材料的微观结构、力学性能及摩擦磨损性能.结果表明:摩擦组元镀铜可使硬质颗粒与铜基体结合紧密;摩擦材料的布氏硬度增加了12％,弹性模量提高了约7％,摩擦系数提高了5％～10％,线磨损量降低了20％～50％;表面镀铜后的Al2O3颗粒不易脱落,摩擦系数稳定性提高了13％～23％.研究结果表明,摩擦组元表面镀铜可提高材料的综合性能.
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