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Determination of resistivity profiles in anti-corrosion coatings from constant-phase-element parameters

Musiani, Marco and Orazem, Mark E. and Pébère, Nadine and Tribollet, Bernard and Vivier, Vincent Determination of resistivity profiles in anti-corrosion coatings from constant-phase-element parameters. (2014) Progress in Organic Coatings, 77 (12). 2076-2083. ISSN 0300-9440

(Document in English)

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Official URL: http://dx.doi.org/10.1016/j.porgcoat.2013.12.013


A recently proposed model which explains the CPE response exhibited by metal/coating/electrolyte sys-tems as the result of power-law dependences of the coating resistivity and permittivity along theirthickness is revisited and applied to three different coating/electrolyte combinations. It is shown thatresistivity profiles may be determined, and their evolution with the time of exposure may be followed.The effect of the assumptions made on coating and electrolyte resistivity on the regressed parametersis discussed and the factors which affect the reliability of the measured water uptake are highlighted.It is shown that both the composition of the coating and that of the test solutions influence the timedependence of the coating performance.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Consiglio Nazionale delle Ricerche - CNR (ITALY)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Université Pierre et Marie Curie, Paris 6 - UPMC (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > University of Florida (USA)
Laboratory name:
Direction Générale de la Compétitivité, de l’Industrie et des Services
Deposited On:30 Jan 2017 14:59

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