(1. 燕山大学 机械工程学院， 秦皇岛 066004；
2. 燕山大学 材料与化工学院， 秦皇岛 066004)
摘 要: 为了降低微弧氧化陶瓷层的摩擦系数，采用在微弧氧化电解液中加入石墨减摩相的方法，在微弧氧化过程中同步沉积出含石墨相的陶瓷层。研究结果表明：膜层厚度和成膜速度开始时都是随氧化时间的延长而增加，达到最大值后，又随时间的延长而降低；石墨含量5g/L时成膜厚度最大；石墨减摩相的加入， 大幅降低了微弧氧化陶瓷层的摩擦系数。
关键字: 微弧氧化； 石墨； 减摩； 成膜速度
micro-arc anti-frition ceramic layer
（1. College of Mechanical Engineering, Yanshan University,
Qinhuangdao 066004, P.R.China；
2. College of Material Science and Chemical Engineering,
Yanshan University, Qinhuangdao 066004, P.R.China）
Abstract:To decrease the friction coefficient of macro-arc oxidation ceramic layer, the method of adding graphite anti-friction phase into the macro-arc oxidation electrolyte was adopted and the ceramic layer with graphite phase was deposited during the process of macro-arc oxidation. This improves the friction capability of macro-arc oxidation ceramic layer greatly. The results show that, at the beginning, the film thickness and film-forming speed will increase with the time and then it reaches the maximum and falls with the time; the film-forming speed reaches its maximum when the graphite contents is 5g/L; the adding graphite anti-friction phase decreases the friction coefficient of ceramic layer obviously.
Key words: micro-arc oxidation; graphite; anti-friction; filmforming speed
