Question

Refractory should possess the ability to be perfectly

Answer 1

A refractory should have the ability to perfectly:

*Possess high refractoriness by featuring high mechanical strength in the operating temperature range

*Maintain optimum porosity or optimum ratio of pore volume to bulk volume

*Overcome thermal spalling that causes pealing, cracking or breaking off refractory materials under high temperatures

*Indicate dimensional stability and not undergo volume changes when subject to high temperatures for a prolonged period