Analysis on organic film degradation by dynamic impedance measurements

Masayuki Itagaki; Akira Ono; Kunihiro Watanabe; Hideki Katayama; Kazuhiko Noda

doi:10.1016/j.corsci.2006.01.011

Analysis on organic film degradation by dynamic impedance measurements

Masayuki Itagaki, Akira Ono, Kunihiro Watanabe, Hideki Katayama, Kazuhiko Noda

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Degradation of the organic coating film on the carbon steel has been investigated by dynamic impedance measurements. Since the permeation of water into the coating progresses in short period after the immersion, the time-stability of the electrode system is not satisfied while measuring the electrochemical impedance. As the result, the impedance spectrum in the low frequency region is distorted with the electrode that does not satisfy the time-stability. In the present paper, a dynamic impedance spectroscopy is applied to the electrode without the time-stability, and the distortion of impedance spectrum in the low frequency region is compensated. The degradation process of the coated metal was analyzed by the curve-fitting of the compensated impedance spectra with the equivalent circuit.

Original language	English
Pages (from-to)	3802-3811
Number of pages	10
Journal	Corrosion Science
Volume	48
Issue number	11
DOIs	https://doi.org/10.1016/j.corsci.2006.01.011
Publication status	Published - 2006 Nov 1

Keywords

Degradation
Dynamic impedance
EIS
Organic film

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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10.1016/j.corsci.2006.01.011

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title = "Analysis on organic film degradation by dynamic impedance measurements",

abstract = "Degradation of the organic coating film on the carbon steel has been investigated by dynamic impedance measurements. Since the permeation of water into the coating progresses in short period after the immersion, the time-stability of the electrode system is not satisfied while measuring the electrochemical impedance. As the result, the impedance spectrum in the low frequency region is distorted with the electrode that does not satisfy the time-stability. In the present paper, a dynamic impedance spectroscopy is applied to the electrode without the time-stability, and the distortion of impedance spectrum in the low frequency region is compensated. The degradation process of the coated metal was analyzed by the curve-fitting of the compensated impedance spectra with the equivalent circuit.",

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T1 - Analysis on organic film degradation by dynamic impedance measurements

AU - Itagaki, Masayuki

AU - Ono, Akira

AU - Watanabe, Kunihiro

AU - Katayama, Hideki

AU - Noda, Kazuhiko

PY - 2006/11/1

Y1 - 2006/11/1

N2 - Degradation of the organic coating film on the carbon steel has been investigated by dynamic impedance measurements. Since the permeation of water into the coating progresses in short period after the immersion, the time-stability of the electrode system is not satisfied while measuring the electrochemical impedance. As the result, the impedance spectrum in the low frequency region is distorted with the electrode that does not satisfy the time-stability. In the present paper, a dynamic impedance spectroscopy is applied to the electrode without the time-stability, and the distortion of impedance spectrum in the low frequency region is compensated. The degradation process of the coated metal was analyzed by the curve-fitting of the compensated impedance spectra with the equivalent circuit.

AB - Degradation of the organic coating film on the carbon steel has been investigated by dynamic impedance measurements. Since the permeation of water into the coating progresses in short period after the immersion, the time-stability of the electrode system is not satisfied while measuring the electrochemical impedance. As the result, the impedance spectrum in the low frequency region is distorted with the electrode that does not satisfy the time-stability. In the present paper, a dynamic impedance spectroscopy is applied to the electrode without the time-stability, and the distortion of impedance spectrum in the low frequency region is compensated. The degradation process of the coated metal was analyzed by the curve-fitting of the compensated impedance spectra with the equivalent circuit.

KW - Degradation

KW - Dynamic impedance

KW - EIS

KW - Organic film

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Analysis on organic film degradation by dynamic impedance measurements

Abstract

Keywords

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