Silicon carbide is widely used as refractory material in the mould making for casting processes.

Silicon carbide is widely used as refractory material in the mould making for casting processes. Correct Answer False

Silicon carbide is a good refractory material, but cannot be used in mould making process because it is highly reactive with oxygen and gets burns itself during oxidation. To avoid such oxidation problems, zirconia is preferred which can also bear very high temperatures and perfectly acts as a refractory material.
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Related Questions

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