硫酸浴中で直流および交流にてAlをアノード電解し, Snを電解析出した2重皮膜の研究
皮膜の微細構造, 化学的および光学的性質
1998 年 49 巻 9 号 p. 1016-1020
詳細
1998 年 49 巻 9 号 p. 1016-1020
We studied the microstructure, chemical, and optical properties of dual films formed on Al anodized in a sulfuric acid bath, first by DC, then by AC in the same bath, and then deposited Sn electrolytically intomicropores. AC films grew beneath DC films forming twig-like micropores of 3-5nm diameter, 5-7nm cell·size, and 30-35nm barrier layer thickness.
Metallic Sn precipitated densely into pores of AC films, and showed optical interference colors of blue, green, and gold with increasing Sn layer thickness.
Corrosion and light fastness tests disclosed fairly good results, and alkali dropping tests showed eminent properties due to thick barrier layers.
