IMPEDANCE DISPERSION ON COATED METAL-ELECTRODES

被引：37

作者：

RAMMELT, U ^{[1
]}

REINHARD, G ^{[1
]}

RAMMELT, K ^{[1
]}

机构：

[1] TECH UNIV DRESDEN,DEPT MATH,DDR-8027 DRESDEN,GER DEM REP

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1984年 / 180卷 / 1-2期

关键词：

ELECTRODES; ELECTROCHEMICAL - Electric Properties - MATHEMATICAL MODELS - POLYMERS - STEEL - Corrosion - ZINC AND ALLOYS - Corrosion;

D O I：

10.1016/0368-1874(84)83590-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

By using the example of a steel/Zn/polyacrylate layer coil-coating system, it is demonstrated that, subsequent to chemical intensive load impedance, dispersion may occur on electrodes consisting of a metal substrate susceptible to corrosion and a defective polymer layer. For the resulting states of such electrodes, a complex equivalent circuit is developed and verified by experiments. The mathematical statements derived on this basis permit individual impedance elements and parameters to be calculated. They explain the cause of the impedance dispersion qualitatively as a relaxation time distribution of the entire electrode process.

引用

页码：327 / 336

页数：10

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