Keywords
Citation
(2003), "In-situ corrosion sensors", Anti-Corrosion Methods and Materials, Vol. 50 No. 2. https://doi.org/10.1108/acmm.2003.12850bad.017
Publisher
:Emerald Group Publishing Limited
Copyright © 2003, MCB UP Limited
In-situ corrosion sensors
In-situ corrosion sensors
Keywords: Corrosion, Sensors, Coatings
DACCO SCI, INC., has developed a series of in-situ corrosion sensors, based on electrochemical impedance spectroscopy (EIS), that allow coating degradation and substrate corrosion to be tracked from the very early stages. Because the sensor monitors the condition of the actual structure of interest, as opposed to monitoring the corrosivity of the environment, it is ideally suited for condition-based maintenance and coating development. Direct comparisons are possible between degradation occurring in accelerated testing and ambient service conditions.
Advantages of the DACCO SCI sensor over competing technologies include the following.
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Sensor directly measures coating degradation and substrate corrosion on the structure of interest.
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Sensor detects early stages of degradation before serious damage or loss of structural integrity.
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Sensor is suitable for a wide range of environments, including ambient field conditions and accelerated testing.
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Sensor is suitable for a one-time measurement; it does not have to be left in place in order for the sensor itself to degrade.
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Painted sensor can be mounted in inaccessible regions.
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Handheld sensor is pressed against the surface for short periods of time only.
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Range of detection is controllable.
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Sensor is also suitable for moisture detection in composites and adhesive bonds.
For further information, visit our Web site at: www.daccosci.com/