硫酸电解液中阳极氧化铝膜的制备与表征

来源期刊：有色金属2011年第2期

论文作者：王晓燕 翟秀静 张廷安 郑双

文章页码：93 - 95

关键词：无机非金属材料； 氧化铝膜； 阳极氧化； 无定型态； 纳米微孔； 有序性

Key words：inorganic nonmetal material； alumina membrane； anodic oxidation； amorphous； nano-pore； ordering

摘    要：在硫酸电解液中对高纯铝箔进行阳极氧化,分析电解电流的变化规律,用X射线及扫描电镜研究氧化铝膜的微观形态与结构。结果表明,阳极氧化铝膜为氧化铝的无定型态,电解电流随电解时间的增加先急剧下降,后逐步回升,然后进一步调整且逐渐趋于平稳,阳极氧化铝膜纳米微孔大小及有序度随电解电压的增加而增加,电解液温度升高,孔径尺寸增大。7℃条件下氧化铝膜有序性优于2℃和13℃条件下氧化铝膜有序性。

Abstract: High-pure aluminum foil is oxidized by anodic reaction in H₂SO₄ electrolyte.The variation cases of electrolysis current are analyzed.The microcosmic morphology and structure of alumina membrane are investigated by using X-ray spectrometer instrument and SEM.The results show that the alumina membrane is amorphous Al₂O₃.The electrolysis current is rapidly decreased with time delay in first and then gradually increased back,thereafter trends to stabilization.The ordering and aperture of nano-pore are increased with the increase of electrolyte voltage,and dimension of aperture is increased with the electrolysis temperature rising.Whereas the ordering of alumina membrane at 7℃ is better than that at 2℃ and at 13℃.