電位制御によるアルミニウム箔の交流エッチングに及ぼす周波数の影響

概要

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Aluminum foil of 99.99% purity was etched in a mixed aqueous solution of hydrochloric acid, sulfuric acid and aluminum chloride using 1, 5 and 10-Hz AC signals with controlled anodic potential and cathodic potential. The effect of frequency on the characteristics of AC etched aluminum foil was investigated.At a given cathodic potential, the anodic potential above which the AC etching takes place, and the anodic potential that gives the highest capacity, both shift toward the negative value with the increase of the frequency.At a given anodic potential, the cathodic potential that results in optimum etching shifts toward the negative value with the increase of the frequency. The length (L) of one side of the pit increases with the decrease of the frequency (f), and the relationships between the length and the frequency is found to be L ∝ f-0.78.
一般社団法人表面技術協会の論文
1995-08-01