Question:
Super refractories should have fusion temperature above
Super refractories should have fusion temperature above
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Super refractories are very high temperature materials and should have fusion temperature above \(2000^\circ C\).
Updated On: May 7, 2026
- \(1580^\circ C\)
- \(1780^\circ C\)
- \(2000^\circ C\)
- \(1600^\circ C\)
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The Correct Option is C
Solution and Explanation
Refractories are materials that can withstand high temperatures without melting or deforming.
They are used in furnaces, kilns, reactors, and high temperature industrial units.
Refractories are classified according to their fusion temperature.
Ordinary refractories have lower fusion temperatures.
High refractories have higher fusion temperatures.
Super refractories are those which can withstand extremely high temperatures.
For a material to be classified as a super refractory, its fusion temperature should be above:
\[
2000^\circ C.
\]
Therefore, the correct answer is:
\[
2000^\circ C.
\]
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