IMR OpenIR
EIS studies of water transport in epoxy coatings coated on LY12 aluminum alloys
Hu, JM; Zhang, JQ; Cao, CN
Corresponding AuthorZhang, JQ()
2003-05-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume39Issue:5Pages:544-549
AbstractElectrochemical impedance spectroscopy (EIS) of LY12 aluminum alloy based epoxy coating electrodes immersed in water solution with different concentrations of NaCl was investigated. Impedance models related to different immersion stages were also proposed. According to the time dependence of coating capacitance, the water sorption in epoxy coatings is mainly controlled by Fick diffusion during the initial stage of immersion, while by non-Fick diffusion in the medium and late stages. The presence of Cl- ion leads to increase in diffusion coefficient of water, however inhibits the interaction between water molecules and coating components, that is, impedes the non-Fick diffusion process. The evaluation of impedance parameters shows electrochemical reaction impedance of metal/electrolyte interface is primarily determined by water uptake in coatings. The water sorption of coatings directly determines electrochemical reaction area of base metal/electrolyte interface.
Keywordelectrochemical impedance spectroscopy epoxy coating water transport aluminum alloy
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000183358400016
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/117372
Collection中国科学院金属研究所
Corresponding AuthorZhang, JQ
Affiliation1.Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China
2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Hu, JM,Zhang, JQ,Cao, CN. EIS studies of water transport in epoxy coatings coated on LY12 aluminum alloys[J]. ACTA METALLURGICA SINICA,2003,39(5):544-549.
APA Hu, JM,Zhang, JQ,&Cao, CN.(2003).EIS studies of water transport in epoxy coatings coated on LY12 aluminum alloys.ACTA METALLURGICA SINICA,39(5),544-549.
MLA Hu, JM,et al."EIS studies of water transport in epoxy coatings coated on LY12 aluminum alloys".ACTA METALLURGICA SINICA 39.5(2003):544-549.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Hu, JM]'s Articles
[Zhang, JQ]'s Articles
[Cao, CN]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hu, JM]'s Articles
[Zhang, JQ]'s Articles
[Cao, CN]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hu, JM]'s Articles
[Zhang, JQ]'s Articles
[Cao, CN]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.