Electrochemical techniques for delamination studies

Electrochemical impedance spectroscopy (EIS) has been described by several authors as a technique to measure delamination of organic coatings. The interpretation of EIS data can be performed in several ways. In this paper two methods are critically compared. These two methods are the breakpoint freq...

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Bibliographic Details
Published in:Corrosion science 1994, Vol.36 (4), p.643-652
Main Authors: van der Weijde, D.H., van Westing, E.P.M., de Wit, J.H.W.
Format: Article
Language:English
Subjects:
Applied sciences
Corrosion
Corrosion mechanisms
Exact sciences and technology
Metals. Metallurgy
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Summary:Electrochemical impedance spectroscopy (EIS) has been described by several authors as a technique to measure delamination of organic coatings. The interpretation of EIS data can be performed in several ways. In this paper two methods are critically compared. These two methods are the breakpoint frequency method (BF) as described and used by Hirayama and Mansfeld and the most probable impedance equivalent circuit method (MPI) as described by van Westing and Geenen. Experiments are presented which were designed for a proper evaluation of these two methods.
ISSN:0010-938X
1879-0496
DOI:10.1016/0010-938X(94)90070-1