Electrical and electrochemical measurements as predictors of corrosion at the metal-organic coating interface

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Electrical and electrochemical measurements as predictors of corrosion at the metal-organic coating interface

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Title: Electrical and electrochemical measurements as predictors of corrosion at the metal-organic coating interface
Creator: Leidheiser, H
Contributor: Hafsah bt. Ahmad
Contributor: Nor Faezah Bt. Ismail
Subject: Document Delivery
Subject: Others
Subject: Prog. Org. Coat.
Subject: Miscellaneous
Date: 2011-05-5 |2011-05-5 |2001– |1979 | | | | | | |
Description: Five types of electrical and electrochemical measurements are reviewed: D.C. electrical properties, A.C. resistance, capacitance, corrosion potential, and polarization curves. When the coating resistance decreases with time and falls below 106 to 107 ohms/cm2, corrosion beneath the coating is occurring at a significant rate. A low electrical resistance requires (a) ion and water penetration into the coating, (b) ready motion of ions through the coating, and (c) proceeding ionic/electron transfer reactions (corrosion) at the polymer—metal interface. Care must be taken when making electrical measurements that the measurement itself does not affect the corrosion rate.

Identifier: valet-20110505-113335
Identifier: vital1:78807
Format: Adobe Acrobat PDF
Coverage: 1979, , ,
Language: EN
Relation: 7,-,-,79,104
Relation: Prog Org Coat (1979) 7:79-104
Rights: No|No
Type: Article
Source: Others
Source: External/Others

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Leidheiser, H. Electrical and electrochemical measurements as predictors of corrosion at the metal-organic coating interface. 2011-05-5 |2011-05-5 |2001– |1979 | | | | | | |.

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VITAL Repository 5.2