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← HistoryWhich consequence results when ancient bronze-age crucibles experience rapid heating?
A)Refractory failure enhances thermal shock✓
B)Increased ductility reduces embrittlement
C)Faster reaction kinetics yield purer metal
D)Alloy segregation prevents efficient cooling
💡 Explanation
Spalling occurs because thermal gradients induce stresses exceeding the material's tensile strength due to rapid heating; therefore pieces break off, rather than the material remaining intact because of ductility at high temperatures.
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