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← ScienceWhich outcome occurs when rapid sublimation cools a component?
A)Material undergoes micro-crack formation✓
B)Isotropic expansion becomes anisotropic
C)Tensile strength temporarily increases
D)Thermal conductivity reaches steady state
💡 Explanation
Material develops flaws because rapid sublimation induces differential thermal contraction; the mechanism is volumetric change within the crystal structure. Therefore, micro-cracks form rather than simple isotropic expansion because temperature gradients exceed material yield strength at grain boundaries.
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