硫酸电解液浓度对多孔氧化铝膜的影响  

Effect of Sulfuric Acid Electrolyte Concentration on Porous Alumina Film

作　　者：王晓燕[1] 翟秀静[1] 张廷安[1] 符岩[1] 郑双[2] 

机构地区：[1]东北大学,沈阳110004 [2]沈阳航空工业学院,沈阳110032

出　　处：《有色金属（冶炼部分）》2011年第5期24-26,共3页Nonferrous Metals（Extractive Metallurgy)

摘　　要：在H2SO4电解液中对高纯铝箔进行阳极氧化,考察分析了电解液浓度对多孔阳极氧化铝膜的影响,结果表明：随硫酸电解液浓度的增加,纳米孔孔径逐渐增大,孔密度降低,孔的有序性先提高后降低;采用23 V直流电压进行阳极氧化,电解液浓度为0.6~1.0 mol/L时制得的氧化铝膜孔径均匀性及有序度均较好,尤其以0.8 mol/L H2SO4最佳;阳极氧化铝膜的厚度随电解液浓度的提高而增大;电解液浓度过高易于将铝箔快速击穿。High-pure aluminum foil was anodic oxidated in H2SO4 electrolyte.Effects of electrolyte concentration on porous alumina film were investigated.The results indicated that aperture of nano-pore increased with the increase of electrolyte concentration,and the density of nano-pore reduced with the increase of electrolyte concentration,while the order of nano-pore improved first and then deteriorated with the increase of electrolyte concentration.When aluminum foil was anodic oxidated at 23 V direct voltages,the better uniformity of aperture and order of alumina film was achieved in 0.6 ~ 1.0 mol/L electrolytes,especially in 0.8 mol/L H2SO4.The thickness of alumina film increased with the increase of electrolyte concentration.Exorbitant electrolyte concentration was prone to rapid breakdown the aluminum foil.

关 键 词：H2SO4电解液 阳极氧化 电解液浓度 有序度 

分 类 号：TG174.451[金属学及工艺—金属表面处理]