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Communication - an approach to measuring local electrochemical impedance for monitoring cathodic disbondment of coatings
journal contribution
posted on 2016-01-01, 00:00 authored by Fari Mahdavi, Mike Yongjun TanMike Yongjun Tan, Maria ForsythMaria ForsythAn electrochemically integrated multi-electrode array has been used for monitoring and visualizing the cathodic disbondment of
defective coatings by measuring local electrochemical impedance. Compared with the conventional electrochemical impedance and
local current measurement approaches, this new approach significantly enhances the sensitivity of detecting the propagation of
coating disbondment by eliminating the effects of the dominating low impedance regions, such as those that arise at coating defects,
and thus increases the visibility of higher impedance regions deep in the disbonded coating. Furthermore, it facilitates the probing
of electrode processes and mechanisms in selected local electrode regions.
defective coatings by measuring local electrochemical impedance. Compared with the conventional electrochemical impedance and
local current measurement approaches, this new approach significantly enhances the sensitivity of detecting the propagation of
coating disbondment by eliminating the effects of the dominating low impedance regions, such as those that arise at coating defects,
and thus increases the visibility of higher impedance regions deep in the disbonded coating. Furthermore, it facilitates the probing
of electrode processes and mechanisms in selected local electrode regions.
History
Journal
Journal of the electrochemical societyVolume
163Issue
5Pagination
C228 - C231Publisher
Electrochemical SocietyLocation
Pennington, N.J.Publisher DOI
ISSN
0013-4651Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2016, The AuthorsUsage metrics
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