An impedance model for the estimation of water absorption in organic coatings. Part II: A complex equation of mixture

被引：41

作者：

Castela, AS ^{[1
]}

Simoes, AM ^{[1
]}

机构：

[1] Univ Tecn Lisboa, Dept Chem Engn, Inst Super Tecn, P-1049001 Lisbon, Portugal

来源：

CORROSION SCIENCE | 2003年 / 45卷 / 08期

关键词：

water uptake; organic coatings; electrochemical impedance; corrosion;

D O I：

10.1016/S0010-938X(03)00015-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An impedance model for the estimation of water absorption in organic coatings is presented. In part 1, the model was developed taking a high frequency approximation. In part 11 the model is generalized by removing that approximation and by treating the film as a multicomponent system. Comparison with weight variation data has shown an improvement of the estimates made with the classical model of Brasher and Kingsbury. A low frequency approximation of the model has given good results with freestanding films. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：1647 / 1660

页数：14

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