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Phosphate coating and Chromate coating are classifications of ______ coatings.

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Phosphate coating and Chromate coating are classifications of ______ coatings.

(a) anodic

(b) cathodic

(c) chemical

(d) vitreous

I had been asked this question in my homework.

The origin of the question is Protective Coatings in section Composite & Ceramic Materials of Engineering Material & Metallurgy

1 Answer

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Correct option is (c) chemical

Explanation: Chemical or electrochemical conversion is a form of an inorganic coating. They are used to improve corrosion resistance and for decoration. Phosphate, chromate, anodized, and chemical oxide coating are the various classifications of inorganic coatings.

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