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← ScienceWhich consequence results when rapid cooling forces amorphous solidification?
A)Reduced grain boundary interface enthalpy
B)Increased susceptibility to brittle fracture✓
C)Enhanced atomic diffusion kinetics
D)Improved long-range crystalline order
💡 Explanation
Increased brittleness occurs because vitrification traps a disordered atomic structure through kinetic constraints, suppressing crystallization via glass transition; therefore, brittle fracture risk rises, rather than improved ductility or enhanced diffusion because atoms lack crystalline order.
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