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- [in Japanese] Study of Dual Films on Al Anodized in a Sulfuric Acid Bath with DC and AC Containing Electrodeposited Sn in Pores -Microstructure, Chemical and Optical Properties- [in Japanese]
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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.<br>Metallic Sn precipitated densely into pores of AC films, and showed optical interference colors of blue, green, and gold with increasing Sn layer thickness.<br>Corrosion and light fastness tests disclosed fairly good results, and alkali dropping tests showed eminent properties due to thick barrier layers.
- Jitsumu Hyomen Gijutsu
Jitsumu Hyomen Gijutsu 49(9), 1016-1020, 1998-09-01
The Surface Finishing Society of Japan