(1. 燕山大學(xué) 機(jī)械工程學(xué)院， 秦皇島 066004；
2. 燕山大學(xué) 材料與化工學(xué)院， 秦皇島 066004)
摘 要: 為了降低微弧氧化陶瓷層的摩擦系數(shù)，采用在微弧氧化電解液中加入石墨減摩相的方法，在微弧氧化過程中同步沉積出含石墨相的陶瓷層。研究結(jié)果表明：膜層厚度和成膜速度開始時(shí)都是隨氧化時(shí)間的延長(zhǎng)而增加，達(dá)到最大值后，又隨時(shí)間的延長(zhǎng)而降低；石墨含量5g/L時(shí)成膜厚度最大；石墨減摩相的加入， 大幅降低了微弧氧化陶瓷層的摩擦系數(shù)。
關(guān)鍵字: 微弧氧化； 石墨； 減摩； 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
