Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to__________________?
Correct answer: A. Thermal spalling
- A. Thermal spalling
- B. Slag attack
- C. Fusion under load
- D. CO attack
Explanation
Repeated heating and cooling produces expansion and contraction stresses, which can crack and detach refractory pieces through thermal spalling. Slag attack and CO attack are chemical mechanisms rather than cyclic thermal damage.
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