Studies on Deterioration Process of Organic Coatings Using EIS and SKP
文献类型：期刊论文
| 作者 | W. Zhang ; J. Wang ; Z. Y. Zhao ; J. Jiang |
| 刊名 | Chemical Journal of Chinese Universities-Chinese
 |
| 出版日期 | 2009 |
| 卷号 | 30期号:4页码:762-766 |
| 关键词 | Organic coating Deterioration Electrochemical impedance spectroscopy(EIS) Scanning Kelvin prove(SKP) electrochemical impedance spectroscopy polymeric coatings atmospheric corrosion steel delamination degradation interface mechanism |
| ISSN号 | 0251-0790 |
| 中文摘要 | Deterioration process of the organic coatings on carbon steel substrate during exposure to 3.5% NaCl solution was investigated using the electrochemical impedance spectroscopy(EIS) and scanning Kelvin probe(SKP). According to the EIS and SKP responses, the entire deterioration process can be divided into three main stages shown as follows. Stage I was the water penetratioti into coatings. In this stage the EIS plots showed single semi-circel with the impedence of the coatings drops gradually and the Volta potential obtained by SKP keeps decreasing but the potential distribution remaines flat. Stage R was the corrosion initiation under coatings. In this stage the EIS plots changed from a single loop to double capacitive loops with the resistance of the coatings decreased sharply, at the same time the surface Volta potential difference of the metal surface increased rapidly. Stage M was the corrosion development and extension. The Nyquist plots of the electrochemical impedence showed a capacitive loop in the HF and a oblique line in the LF, with the potential difference remained in the high level. It was confirmed that the novel combination of EIS and SKP can complement and perfect each other to get more exact and credible details in studying the deterioration process of the organic coatings. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32570]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | W. Zhang,J. Wang,Z. Y. Zhao,et al. Studies on Deterioration Process of Organic Coatings Using EIS and SKP[J]. Chemical Journal of Chinese Universities-Chinese,2009,30(4):762-766. |
| APA | W. Zhang,J. Wang,Z. Y. Zhao,&J. Jiang.(2009).Studies on Deterioration Process of Organic Coatings Using EIS and SKP.Chemical Journal of Chinese Universities-Chinese,30(4),762-766. |
| MLA | W. Zhang,et al."Studies on Deterioration Process of Organic Coatings Using EIS and SKP".Chemical Journal of Chinese Universities-Chinese 30.4(2009):762-766. |
入库方式： OAI收割
来源：金属研究所
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