Electrochemical impedance spectroscopy as a method to evaluate coated aluminum beverage containers .2. Statistical analysis of performance

被引：22

作者：

Grandle, JA

Taylor, SR

机构：

[1] Dept. of Mat. Science Engineering, Thornton Hall, University of Virginia, Charlottesville

来源：

CORROSION | 1997年 / 53卷 / 05期

关键词：

alternating current; aluminum chloride; coatings; electrochemical impedance spectroscopy; epoxy; impedance; nondestructive testing; organic coatings;

D O I：

10.5006/1.3280477

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A method for evaluating commercially applied organic coatings must consider the observed distribution of coating performance for a given population. A sample of cans was examined using electrochemical impedance spectroscopy (EIS). The low-frequency impedance (the impedance between 0.01 Hz and 1 Hz) measured during the first month of exposure was analyzed statistically and used to evaluate performance of three coating populations. To verify EIS results, comparison was made to an 8-week analysis of aluminum concentration in solution and to visual observations at 8 months. Statistical analysis of EIS data and visual observations agreed well. Coating performance was related to chemistry and cure schedule.

引用

页码：347 / 355

页数：9

共 19 条

[1]

[Anonymous], METALS HDB

[2] AN EIS STUDY OF ALUMINUM BARRIER-TYPE OXIDE-FILMS FORMED IN DIFFERENT MEDIA [J].