Employing Electrochemical Impedance in Predicting ... - Halox
Employing Electrochemical Impedance in Predicting ... - Halox
Employing Electrochemical Impedance in Predicting ... - Halox
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Why EIS?<br />
www.halox.com<br />
• For pa<strong>in</strong>ts/coat<strong>in</strong>gs on a metal substrate, EIS acts as a<br />
very sensitive quantitative detector of changes <strong>in</strong> both the<br />
coat<strong>in</strong>g and the metal substrate dur<strong>in</strong>g long-term exposure<br />
to an electrolyte.<br />
• Changes <strong>in</strong> the coat<strong>in</strong>g will be apparent <strong>in</strong> EIS long<br />
before any visible damage occurs.<br />
• Apply stress to the sample to cause it to fail. The stress<br />
should simulate the service environment, which could be<br />
weather<strong>in</strong>g or a specific chemical attack, e.g., seawater.<br />
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