Northampton Electronic Collection of Theses and Research

Developing electrochemical measurements in order to assess anti-corrosive coatings more effectively

Mills, D. J., Jamali, S. and Tobiszewski, M. T. (2012) Developing electrochemical measurements in order to assess anti-corrosive coatings more effectively. Progress in Organic Coatings. 74(2), pp. 385-390. 0300-9440.

Item Type: Article
Abstract: The aim of this project was to check reproducibility of results obtained using NOCS (no connection to the substrate) arrangement of the electrochemical noise method (ENM). NOCS involves taking measurements from three nominally identical areas on the coated surface. Thus, no electrical connection to substrate is required. In practice the areas are not identical and various arrangements for connection of the three cells were tried to see if the individual areas could be separated out and whether the individual resistances could be computed. Also different ways of calculating the Rn (noise resistance) and Rsn (spectral noise resistance) parameters were attempted to see which one gave the best comparison with the more standard EIS measurements. The maximum entropy method was recognized to be the most useful for comparison with EIS, as well as for graphic evaluation of results. Regarding distinguishing three areas using different connection arrangements, it was possible to identify the situation when one of the three values was different to the other two. However further experiments are needed before it will be possible to confidently assign an Rn value to each individual area
Uncontrolled Keywords: Electrochemical noise method (ENM); Coating assessment; NOCS arrangement; Data treatment
Subjects: T Technology > TP Chemical technology > TP250 Industrial electrochemistry
T Technology > TP Chemical technology > TP1175 Organic coatings
T Technology > TA Engineering (General). Civil engineering (General) > TA418 Corrosion engineering
Creators: Mills, Douglas J, Jamali, S and Tobiszewski, Mateusz T
Publisher: Elsevier
Faculties, Divisions and Institutes: University Faculties, Divisions and Research Centres - OLD > School of Science and Technology (2010-2016)
Faculties > Faculty of Arts, Science & Technology > Engineering
Date: June 2012
Date Type: Publication
Page Range: pp. 385-390
Journal or Publication Title: Progress in Organic Coatings
Volume: 74
Number: 2
Language: English
ISSN: 0300-9440
Status: Published / Disseminated
Related URLs:
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