Abstract
The impedance of zinc-rich polymer coatings on steel in a 3-% NaCl solution is studied. The electrochemical behavior of the electrode is satisfactorily described by an equivalent circuit that contains a constant-phase element, which reflects fractal properties of the zinc surface in the binder. From the results of calculations of the circuit elements for metal-rich electrodes with different zinc contents computed are fractions of the active area of the surface of the coating and its fractal dimensionality.
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Ostanina, T.N., Rudoi, V.M., Yaroslavtseva, O.V. et al. Protective Properties of Zinc-Rich Coatings: An Impedance Method Estimate. Russian Journal of Electrochemistry 40, 1019–1023 (2004). https://doi.org/10.1023/B:RUEL.0000046485.07713.cb
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DOI: https://doi.org/10.1023/B:RUEL.0000046485.07713.cb