金属表面技術
Online ISSN : 1884-3395
Print ISSN : 0026-0614
ISSN-L : 0026-0614
塩酸中におけるアルミニウムの交流エッチングのサイクリッククロノポテンショメトリーによる検討
松木 健三立花 和宏菅原 陸郎船越 明菅沼 栄一
著者情報
ジャーナル フリー

1988 年 39 巻 12 号 p. 796-802

詳細
抄録

The AC etching of aluminum foil (99.99%) in 5% hydrochloric acid solution was studied by cyclic chronopotentiometry, SEM observation and electrostatic capacity measurement. Prolonged cyclic chronopotentiograms at a frequency of 50Hz were measured under different current densities and temperatures, and expressed in three-dimensional graphics as a function of cycle number. Potentialcycle number curves were also derived from the chronopotentiograms at arbitrary times.
Change in the peak potential at anodic half cycles was closely related to the potential in the subsequent cathodic half cycles. The time, tp, at which the anodic peak is attained and the value of the anodic peak potential, Ep, varied with cycle number. The potential -cycle number curve was greatly affected by the current density at the cathodic half cycles and changes in tp and Ep became greater as the electrolyte temperature was increased. When the etching was carried out with a high anodic peak potential and without large fluctuation in the potential-cycle number curve, the pits were densely formed on the aluminum foil, providing high electrostatic capacity.

著者関連情報
© (社)表面技術協会
前の記事 次の記事
feedback
Top