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← ScienceWhat risk increases when cooling a piezoelectric quartz crystal below its Curie temperature during high-frequency acoustic wave generation?
A)Dielectric breakdown susceptibility improves slightly
B)Ferroelectric domain switching becomes more prevalent✓
C)Reduced signal-to-noise due to increased jitter
D)Acoustic impedance matching will improve readily
💡 Explanation
Ferroelectric domain switching risk increases because cooling stresses the crystal lattice, enhancing dipole alignment causing spontaneous polarization via the piezoelectric effect; therefore, domains can reorient readily rather than remain stable which impacts frequency.
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