Evaluation of the anticorrosive behaviour of organic coatings by using a variant of electrochemical impedance spectroscopy

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dc.contributor.author Kouloumbi, NJ en
dc.contributor.author Kyvelidis, ST en
dc.date.accessioned 2014-03-01T02:41:52Z
dc.date.available 2014-03-01T02:41:52Z
dc.date.issued 2001 en
dc.identifier.issn 0026-3672 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/30644
dc.subject Anticorrosive behaviour en
dc.subject Electrochemical impedance spectroscopy en
dc.subject Organic coatings en
dc.subject.classification Chemistry, Analytical en
dc.subject.other epoxide en
dc.subject.other organic compound en
dc.subject.other steel en
dc.subject.other conference paper en
dc.subject.other corrosion en
dc.subject.other diffusion coefficient en
dc.subject.other electrochemistry en
dc.subject.other exposure en
dc.subject.other impedance en
dc.subject.other methodology en
dc.subject.other molecular dynamics en
dc.subject.other spectroscopy en
dc.subject.other standard en
dc.subject.other water permeability en
dc.title Evaluation of the anticorrosive behaviour of organic coatings by using a variant of electrochemical impedance spectroscopy en
heal.type conferenceItem en
heal.identifier.primary 10.1007/s006040170050 en
heal.identifier.secondary http://dx.doi.org/10.1007/s006040170050 en
heal.language English en
heal.publicationDate 2001 en
heal.abstract Electrochemical impedance spectroscopy (EIS) has been acknowledged as a modem and efficient method in the evaluation of the anticorrosive behaviour of coatings. However, difficulties in the interpretation of the complex experimental data present a significant drawback in the use of the method in field studies where quick results are required. The breakpoint frequency method is an extension of the basic EIS method, which allows rapid qualitative assessment of the condition of a coating. By the breakpoint frequency method, the behaviour of epoxy coatings containing various types of reinforcement and applied on steel specimens has been examined after long-term (up to 300 days) exposure to a corrosive environment. The parameter values obtained by the breakpoint frequency method, such as the delaminated area, have been compared with those obtained from fitting the experimental EIS data to a suitable equivalent circuit. These results have also been compared with those of the water permeability of free membranes and the diffusion coefficient determined by standard test methods (e.g. the cup test). en
heal.publisher SPRINGER-VERLAG WIEN en
heal.journalName Mikrochimica Acta en
dc.identifier.doi 10.1007/s006040170050 en
dc.identifier.isi ISI:000169798600014 en
dc.identifier.volume 136 en
dc.identifier.issue 3-4 en
dc.identifier.spage 175 en
dc.identifier.epage 180 en

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