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A new strategy for corrosion inhibition coatings for lead heritage metal objects
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Flexer, Victoria, Grayburn, Rosie, de Keersmaecker, Michel, Mohammed, Elbeshary A.A., Dowsett, M. G. and Adriaens, Annemie (2015) A new strategy for corrosion inhibition coatings for lead heritage metal objects. Electrochimica Acta, 179 . pp. 441-451. doi:10.1016/j.electacta.2015.05.022 ISSN 0013-4686.
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Official URL: http://dx.doi.org/10.1016/j.electacta.2015.05.022
Abstract
Corrosion is the major problem in the degradation of heritage metal objects. The development of appropriate treatment methods to stabilize and protect artefacts is a undeniable scientific challenge. Here we propose a new coating method to protect lead heritage metal objects. This coating is environmentally safe, stable, reversible, easy to apply and to remove, and aesthetically justified. The coating consists of a compact and thick layer of lead ditetradecanoate, which is formed upon immersion of a lead substrate in a melted sample of tetradecanoic acid at 60 °C. Coated lead samples were exposed either to an aqueous corrosive environment or to a closed chamber with high relative humidity and an oak corrosive atmosphere. The corrosion resistance of the coating was followed for 60 days by electrochemical impedance spectroscopy and X-ray diffraction. Results show an unprecedented corrosion inhibition of the new coatings.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Journal or Publication Title: | Electrochimica Acta | ||||||||
Publisher: | Pergamon | ||||||||
ISSN: | 0013-4686 | ||||||||
Official Date: | 10 October 2015 | ||||||||
Dates: |
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Volume: | 179 | ||||||||
Page Range: | pp. 441-451 | ||||||||
DOI: | 10.1016/j.electacta.2015.05.022 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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