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LoginSilicon carbide is widely used as refractory material in the mould making for casting processes.
(a) True
(b) False
This question was addressed to me in an interview.
The question is from Foundry Fluxes and Refractories topic in section Foundry Introduction & Materials of Casting-Forming-Welding II
Casting-Forming-Welding Ii Foundry Introduction & Materials in Casting-Forming-Welding Ii . 3 years ago
+10 pts
The CORRECT answer is (b) False
The BEST I can explain: 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.
Posted on 02 Dec 2021, this text provides information on Casting-Forming-Welding Ii related to Foundry Introduction & Materials in Casting-Forming-Welding Ii. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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