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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 ISSN 0039-6028.
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Official URL: http://dx.doi.org/10.1016/j.apsusc.2008.05.333
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 |
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| Divisions: | Faculty of Science, Engineering and Medicine > 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: |
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| 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) |
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