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← ScienceWhich outcome occurs when point defects aggregate in a crystal lattice during annealing?
A)Enhanced dislocation climb resistance
B)Increased material yield strength
C)Formation of Kirkendall voids✓
D)Improved thermal fatigue resistance
💡 Explanation
Kirkendall voids occur during annealing because vacancies diffuse at different rates within the lattice, leading to void formation due to the Kirkendall effect; therefore voids form, rather than increased strength, which requires dispersed defects.
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