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Which limitation arose during early Mesopotamian bronze casting because of crucible environments?

A)Rapid crucible thermal gradient increase
B)Reduced diffusion of molten silicate
C)Faster gas absorption into the metal
D)Delayed onset of eutectic transformation

💡 Explanation

Excessive thermal shock caused common cracking of the clay-based crucibles preventing repeated usage; it limited bronze casting size, because the thermal stress exceeded material strength, and repeated cycles exacerbated crack formation, therefore rapid quenching became problematic rather than alternative processes like delayed transformations becoming major issues.

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