铝表面形貌对纳米孔氧化铝膜生长的影响
Effect of Surface Morphology of Aluminum on the Growth of Nanoporous Alumina Film
摘要:
为获得高质量平整表面的铝合金多孔阳极氧化膜，本文采用电化学抛光技术对1060铝合金进行抛光试验，研究了铝合金表面形貌和合金成分对氧化铝薄膜生长的影响。结果表明：在电化学抛光之后，铝板表面的粗糙度和内部晶界的应力集中可以显著降低，能有效去除以少量固溶形式存在的多相偏析合金，得到了高度有序平整的纳米孔氧化铝膜，验证了铝表面形貌在多孔氧化铝的制备中起到了关键性的作用。
Abstract:
In order to obtain Aluminum Alloy porous anodic oxide film of high quality flat surface, electro-chemical polishing technology was used to polish 1060 aluminum alloy, the effect of surface mor-phology and alloy composition on the growth of aluminum oxide film was studied. The results showed that: After electrochemical polishing, the roughness of aluminum plate surface and stress concentration of grain boundary can be reduced significantly, and the polyphase segregation alloy in the form of a small amount of solid solution can be effectively removed, the highly ordered na-noporous alumina membrane is obtained. It is verified that the surface morphology of aluminum plays a key role in the preparation of porous alumina.
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