journal article·2006-01

Development of an electrochemical impedance spectroscopy sealant test: I. Nonconductive sealants

Guy D. Davis, John G. Dillard

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Abstract

Abstract Distinguishing between sealants and providing laboratory prognostic tools is essential for qualifying new sealants. Current test methods do not provide adequate discrimination between sealants. A laboratory test based on electrochemical impedance spectroscopy (EIS) supplemented by adhesion strength measurements and examination of sealed, bimetallic surfaces has been developed to give an early indication of sealant performance. Specimens using one of two different nonconductive sealants underwent hot-salt-water exposure followed by EIS measurements, pull strength measurements, and visual inspection. Defective sealant bonded specimens were readily detected by EIS. Absorption of moisture by the sealants was also detected and quantified. Keywords: SEALANTELECTROCHEMICAL IMPEDANCE SPECTROSCOPYSCREENING TESTMOISTURE
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Research context

OpenAlex topics: Corrosion Behavior and Inhibition · Concrete Corrosion and Durability · Hydrogen embrittlement and corrosion behaviors in metals

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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