Menu
Search
Filters
Close
Menu

02200 Practical Application of ECN / EIS for In-Service Coatings Assessment

Picture for 02200 Practical Application of ECN / EIS...
Available for download
Product Number: 51300-02200-SG
ISBN: 02200 2002 CP
Author: R.L. Ruedisueli and B.D. Layer
$0.00
$20.00
$20.00
EIS (electrochemical impedance spectroscopy) is well established as a work horse in the laboratory evaluation of organic coatings performance. This paper describes the first step in the development of a test protocol to apply a field-portable ECN (electrochemical noise) sensor / system to the assessment of in-service coatings. The correlation between EIS and ECN scans on long-term lab coating samples confmns that ECN has the ability to discriminate, clearly, between "Good", and "Poor" coatings p e r f o r c e . This may prove useful in extending laboratory EIS data on coatings to field evaluations of in-service coatings. EIS and a modified ECN technique were used to examine the protective properties of nine epoxy-paint coating samples. All coatings were on metallic substrates, and had been immersed in ASTM-D1141 synthetic seawater and had EIS data for periods ranging from two to ten years. Each tested-sample represented a different stage of coating aging and degradation, from "Good" to "Failed", with the differences between all coatings discemable using EIS. The observed resolution in noise current measurements, by the modified ECN method, encourages its application to assessing in-service coating conditions, by comparing ECN readings on field samples to EIS values measured on laboratory data base samples of the service coatings.
EIS (electrochemical impedance spectroscopy) is well established as a work horse in the laboratory evaluation of organic coatings performance. This paper describes the first step in the development of a test protocol to apply a field-portable ECN (electrochemical noise) sensor / system to the assessment of in-service coatings. The correlation between EIS and ECN scans on long-term lab coating samples confmns that ECN has the ability to discriminate, clearly, between "Good", and "Poor" coatings p e r f o r c e . This may prove useful in extending laboratory EIS data on coatings to field evaluations of in-service coatings. EIS and a modified ECN technique were used to examine the protective properties of nine epoxy-paint coating samples. All coatings were on metallic substrates, and had been immersed in ASTM-D1141 synthetic seawater and had EIS data for periods ranging from two to ten years. Each tested-sample represented a different stage of coating aging and degradation, from "Good" to "Failed", with the differences between all coatings discemable using EIS. The observed resolution in noise current measurements, by the modified ECN method, encourages its application to assessing in-service coating conditions, by comparing ECN readings on field samples to EIS values measured on laboratory data base samples of the service coatings.
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 09119 An Electrochemical Impedance Spectroscopy (EIS) Based Above-ground Technique for Determining
Available for download

09119 An Electrochemical Impedance Spectroscopy (EIS) Based Above-ground Technique for Determining Coating Condition

Product Number: 51300-09119-SG
ISBN: 09119 2009 CP
Author: Fraser King, Russ Given, Li Yan, Robert Grant Worthingham
Publication Date: 2009
$20.00
Picture for Methodology for Coating Evaluation by Using Electrochemical Impedance Spectroscopy
Available for download

51313-02241-Methodology for Coating Evaluation by Using Electrochemical Impedance Spectroscopy

Product Number: 51313-02241-SG
ISBN: 02241 2013 CP
Author: Erich Salazar
Publication Date: 2013
$20.00
Picture for 96659 EVALUATION OF COATING DEGRADATION FOR
Available for download

96659 EVALUATION OF COATING DEGRADATION FOR POLYMER COATED STEEL EXPOSED TO SEAWATER

Product Number: 51300-96659-SG
ISBN: 96659 1996 CP
Author: B. J. Little, J. Jones - Meehan, F. Mansfeld, H. Xiao, L. T. Han, C. C. Lee, C. Chen
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support