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用等离子体增强电化学表面处理技术对铝合金表面进行陶瓷化处理 ,在铝合金表面获得陶瓷膜层。采用X射线衍射、X光电子能谱、扫描电镜、透射电镜等测试手段对陶瓷膜层进行了研究。结果表明 :该陶瓷膜层由γ Al2 O3,AlPO4 和CoO等组成 ;通过对陶瓷膜层的表面形貌和显微结构观察及分析 ,发现陶瓷膜层形成过程是一个离子运动 ,表面层不断被击穿形成熔融区 ,处理体系中的电解质不断向熔融区运动、成核并迅速烧结的过程 ;陶瓷膜层呈现岛屿状 ;陶瓷膜层与基体之间为冶金结合
The surface of aluminum alloy is ceramized by plasma-enhanced electrochemical surface treatment technology, and the ceramic film is obtained on the surface of aluminum alloy. The ceramic coatings were investigated by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. The results show that the ceramic coating consists of γ Al 2 O 3, AlPO 4 and CoO. Through the observation and analysis of the surface morphology and microstructure of the ceramic coating, it is found that the formation of the ceramic coating is an ionic movement and the surface layer is continuously Breakdown to form the melting zone, the electrolyte in the treatment system continuously moves to the melting zone, nucleation and rapid sintering process; the ceramic membrane presents islands; the ceramic membrane and the substrate are metallurgical bonds