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Analysis of the effect of organic coating thickness on EIS by transmission line model
Sun, QX; Zhang, JQ; Lin, WW
2004-11-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume40Issue:11Pages:1205-1209
AbstractAccording to the relationship of the transmission line model (CR circuit) and the fixed configuration model (QR circuit), the analytical method of electrochemical impedance spectroscopy is established, by which the effect of coating's thickness and its application are investigated. The results show that for intact coating the fitting stability of CR circuit is higher than that of QR circuit. As compared to the parameter of constant phase element Y(0), it is more regularity for the relationship of C(0) with the state change of coating due to uptake water. The parameters of A(1) and B(1) deduced from that can be used to evaluate the effect of coating thickness on barrier qualities. Moreover, within some range the logarithmic linear slope of parameter C(i) vs characteristic frequency f* is not effected by the thickness of the coating with incomplete barrier properties, and has a certain connection with the ratio between the relative increment of capacitance and that of resistance, which could be used to assess the change of adhesion between organic coating/metal interface, and the reason is given.
Keywordelectrochemical impedance spectroscopy (EIS) transmission line coating thickness barrier quality interfacial adhesion
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000225656500016
PublisherSCIENCE PRESS
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/118870
Collection中国科学院金属研究所
Affiliation1.Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China
2.Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China
3.Chinese Acad Sci, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Peoples R China
4.Shaoguan Univ, Dept Chem, Shaoguan 512005, Peoples R China
Recommended Citation
GB/T 7714
Sun, QX,Zhang, JQ,Lin, WW. Analysis of the effect of organic coating thickness on EIS by transmission line model[J]. ACTA METALLURGICA SINICA,2004,40(11):1205-1209.
APA Sun, QX,Zhang, JQ,&Lin, WW.(2004).Analysis of the effect of organic coating thickness on EIS by transmission line model.ACTA METALLURGICA SINICA,40(11),1205-1209.
MLA Sun, QX,et al."Analysis of the effect of organic coating thickness on EIS by transmission line model".ACTA METALLURGICA SINICA 40.11(2004):1205-1209.
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