借助于SEM和XRD观察了铝合金表面氧化铝陶瓷层的生长特性, 测定了铝合金表面陶瓷层的相组成. 结果表明: 氧化铝陶瓷层生长明显分为3个阶段, 起始阶段陶瓷的生长呈典型的柱状特征, 后期以重熔增厚的方式为主, 铝合金陶瓷层与基体间以微冶金过渡形式结合, 陶瓷层表层中非定型相的比例高达70%, 其余为α-Al2O3和γ-Al2O3; 微弧氧化处理液的组成及电参数的选择对陶瓷层的生长有一定的影响.
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