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Quantification of coating aging using impedance measurements

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Author: Westing, E.P.M. van · Weijde, D.H. van der · Vreijling, M.P.W. · Ferrari, G.M. · Wit, J.H.W. de
Type:bookPart
Date:1998
Publisher: American Chemical Society
Institution: TNO Industrie
Source:Organic coatings for corrosion control, 69-90
series:
ACS Symposium Series
Identifier: 234726
ISBN: 9780841235496
Keywords: Materials · Coatings · Aging of coatings · Measurement

Abstract

This chapter shows the application results of a novel approach to quantify the ageing of organic coatings using impedance measurements. The ageing quantification is based on the typical impedance behaviour of barrier coatings in immersion. This immersion behaviour is used to determine the limiting case for the interpretation of results on coatings exposed to artificial and outdoor weathering.