Paper Title:

Anodic Oxidation Parameters on Al-Cu Alloy Anodizing Film's Electrochemical Ability by EIS

Periodical Advanced Materials Research (Volumes 11 - 12)
Main Theme AICAM 2005
Edited by Masayuki Nogami, Riguang Jin, Toshihiro Kasuga and Wantai Yang
Pages 665-668
DOI 10.4028/www.scientific.net/AMR.11-12.665
Citation Chao Guo et al., 2006, Advanced Materials Research, 11-12, 665
Online since February, 2006
Authors Chao Guo, Yu Zuo, Jing Mao Zhao, Xu Hui Zhao, Jin Ping Xiong
Keywords Anodized Oxidation, Cast Al-Cu Alloy, Electrochemical Impedance Spectroscopy (EIS), Equivalent Circuit
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Abstract

EIS is used in this paper to study the effects of anodic oxidation parameters on the film’s ability, and multi-layer equivalent circuits are proposed. The oxidation time has great effect on porous layer, the porous layer’s impedance increases as the anodic oxidation time prolong; anodic current density has effect on both barrier layer and porous layer, higher current density gets higher impedance values in both barrier layer and porous layer; anodic oxidation temperature has great effect on barrier layer, when the temperature decreases, the barrier layer’s impedance increases.