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Growth and real time corrosion resistance monitoring of lead decanoate coatings

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Adriaens, A. (Annemie) , De Bisschop, Frank, Dowsett, M. G. and Schotte, Bart (2008) Growth and real time corrosion resistance monitoring of lead decanoate coatings. Surface Science, Vol.254 (No.22). pp. 7351-7355. doi:10.1016/j.apsusc.2008.05.333

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Official URL: http://dx.doi.org/10.1016/j.apsusc.2008.05.333

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Abstract

Lead is very susceptible to corrosion in the presence of organic acids and humidity. A potential countermeasure is to apply a lead carboxylate coating by immersing the metal in a sodium carboxylate solution/suspension. In this work we report on the degree of surface coverage and the corrosion resistance of a lead decanoate Pb(C-10)(2) coating as a function of treatment time. Results show that the surface coverage reaches 91% after 15 min and about 100% after 1 h in a 0.05 M sodium decanoate solution. The corrosion resistance, as indicated by electrochemical impedance spectroscopy, continues to increase even after 6 h of immersion. In addition, we show that in the case of planar transport, a diffusion layer of 17 mm thickness exists, wherein the sodium decanoate concentration drops linearly from its bulk value to almost zero at the solid/surface interface. (C) 2008 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QC Physics
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Corrosion resistant materials, Corrosion and anti-corrosives, Lead -- Corrosion, Protective coatings
Journal or Publication Title: Surface Science
Publisher: Elsevier Science BV
ISSN: 0039-6028
Official Date: 15 September 2008
Dates:
DateEvent
15 September 2008Published
Volume: Vol.254
Number: No.22
Number of Pages: 5
Page Range: pp. 7351-7355
DOI: 10.1016/j.apsusc.2008.05.333
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Fonds voor Wetenschappelijk Onderzoek—Vlaanderen [Research Foundation Flanders] (FWO)

Data sourced from Thomson Reuters' Web of Knowledge

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