The formation of the barrier layer of anodic porous alumina film has been investigated in phosphoric acid solution. The results show that with the increase of phosphoric acid concentration,the time needed to form barrier layer is shortened,and also the barrier layer becomes thinner. The phenomenon can be interpreted reasonablyby the stress concentration that developed in barrier layer.
采用交、直流阳极氧化的方法 ,研究了硫酸溶液中形成氧化铝多孔膜的红外特性 .结果表明 ,交、直流氧化膜中存在的 Al O H键 ,S O键 ,Al OH键 ,Al OAl键以及交流氧化膜特有的 S H键和 S S键对红外光的吸收是其具有极低红外反射率的主要原因 .交流氧化膜基体铝的粗化也使其红外反射率进一步降低 .交。
