使用阴极等离子体液相沉积技术在不锈钢表面生成了厚度达40μm的氧化铝膜层,研究了电流密度对膜层的组成和结构影响,以及膜层的生长规律和形成过程.膜层由α-Al2O3和γ-Al2O3组成,随着电流密度的增大,α-Al2O3的含量逐渐增大,电流密度为8 A/dm2时达到86%.膜层的表面粗糙、多孔,随着电流密度的增大,表面颗粒状明显增多,微孔数减少;基体中的Fe没有进入膜层,从膜层内向外Al和O的含量逐渐下降.
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