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Which of the following is not used for fine polishing of the mount?

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in Engineering Material & Metallurgy by (773k points)
Which of the following is not used for fine polishing of the mount?

(a) Aluminum oxide

(b) Diamond paste

(c) Bauxite tailing

(d) Cerium oxide

This question was posed to me in homework.

The origin of the question is Metallography in portion Tools of the Metallurgist of Engineering Material & Metallurgy

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Correct choice is (c) Bauxite tailing

The explanation: The gamma form of aluminum oxide is widely preferred for fine polishing of ferrous and copper-based materials. Cerium oxide is also used for fine polishing of aluminum, magnesium, and their alloys. Other abrasives used are a diamond paste, chromium oxide, and magnesium oxide.

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