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Diamond and corundum are examples of _____ ceramics.

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Diamond and corundum are examples of _____ ceramics.

(a) glass

(b) stone

(c) refractories

(d) abrasives

I had been asked this question in an interview.

This is a very interesting question from Ceramics in portion Non Metallic Materials of Engineering Material & Metallurgy

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Right option is (d) abrasives

Explanation: Abrasives are a kind of ceramic materials which are used for making grinding wheels, abrasive cloth and paper. Diamond, carborundum, and corundum are common abrasive materials.

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