Determination of Coating Adhesion Using Electrochemical Impedance Spectroscopy
By A Hinton
Keywords:
Electrochemical Impedance Spectroscopy, organic coatings, corrosion, adhesion, equivalent circuit modelling
A brief review of the use of electrochemical impedance spectroscopy (EIS) for the determination of organic coatings on metal substrates is presented. Examples include measurement of swelling, coating adhesion and delamination, corrosion and blister formation.
In addition, this note reviews the use of equivalent circuits in the understanding of the frequency response of the system under investigation and simple network representations are presented as a guide.