Effect of temperature on the impedance response of coated metals
| Autor: | Z. Sharer Sahir, John M. Sykes |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Work (thermodynamics)
Materials science General Chemical Engineering Organic Chemistry Analytical chemistry Activation energy engineering.material Chloride Spectral line Surfaces Coatings and Films Dielectric spectroscopy Coating Materials Chemistry medicine engineering Ionic conductivity Transient (oscillation) medicine.drug |
| Zdroj: | Progress in Organic Coatings. 77:2039-2044 |
| ISSN: | 0300-9440 |
| DOI: | 10.1016/j.porgcoat.2014.02.009 |
| Popis: | This work tested painted steel panels in chloride solutions at 50 °C using electrochemical impedance spectroscopy (EIS) and compared performance with tests at room temperature. EIS spectra were measured over a range of temperature while the samples cooled and activation energies for ion migration in the coating and the corrosion reaction at the interface were determined by analysis based on fitting to model circuits. The significance of the activation energies was explored from examination of transient behaviour after a sudden temperature change. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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