Abstract
In order to clarify the physical property of a heavy-duty coating, the impedance spectrum of a thick vinyl ester resin organic coating containing glass flakes as additives that had been used for 16.9 years was analyzed. The phase angles of the impedance of the coating deviated from the behavior of an ideal capacitor and had frequency dependence. These impedance characteristics could be explained by considering exponent distribution of the coating resistivity along its thickness direction, which is one of the interpretations for a constant-phase-element (CPE) behavior. Furthermore, this result suggests that the residual lifetime of the long-used heavy-duty coating can be predicted based on physical parameters.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
