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← ScienceWhich outcome occurs when exceeding displacement threshold in ferroelectric crystal?
A)Reversible piezoelectric energy harvesting occurs
B)Crystallographic domain wall motion begins✓
C)Pyroelectric coefficient increases substantially
D)Dielectric breakdown strength increases greatly
💡 Explanation
Applied stress surpassing the threshold strain induces crystallographic domain wall motion, because the **crystalline structure changes** therefore polarization switches alignment occur, rather than reversible energy harvesting at lower strains.
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