TITLE

The Effect of Aluminum Ions on the DC Etching of Aluminum Foil

AUTHOR(S)
Ryu, Jong-Ho; Seo, Jong Hyun; Jeong, Jae-Han; Kim, Sung-Kap; Lee, Dong Nyung
PUB. DATE
September 2004
SOURCE
Journal of Applied Electrochemistry;Sep2004, Vol. 34 Issue 9, p879
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A study has been made of the electrochemical etching of 99.99% aluminum foils at a current density of 50 mA cm-2 in AlCl3–HCl solutions (1 m Cl-) at 80 °C. The solutions were made by dissolving metallic aluminum into 1m HCl solution, to give a Cl- concentration of 1 m. The number density of etch tunnels and the homogeneity of tunnel length decreased, and the mean pit size and its standard deviation increased with increasing Al3+ concentration. The results were discussed based on potential transients at a current density of 50 mA cm-2, current–potential curves at a scan rate of 10 m Vs-1 and electrochemical impedance spectra.
ACCESSION #
14360898

 

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