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← ScienceWhich outcome occurs when a heavily doped silicon crystal rapidly cools?
A)Increased point defect concentrations form✓
B)Reduced dislocation density develops
C)Enhanced grain boundary diffusion occurs
D)Complete crystalline structure reformation
💡 Explanation
Increased point defect concentrations form because rapid cooling induces thermal stress surpassing diffusion thresholds; therefore, existing vacancies freeze rather than annealing given lattice contractions occur faster than atoms can move, leading to point defects rather than uniform restructuring.
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