PZT 52/48 Depolarization: Quasi-Static Thermal Heating vs. . Longitudinal Explosive Shock


Systematic studies of the depolarization ofPb(Zr₀.₅₂Ti₀.₄₈)O₃ (PZT 52/48) poled piezoelectric ceramic samples were performed using thermal heating and explosive longitudinal-shock compression. The electric charge density that is released due to thermal heating at a rate of 0.9 K/min was consistent for all sample sizes (Q = 27.8µC/cm²). The charge density that is released due to shock compression was practically equal to that released due to thermal heating. The PZT 52/48 samples were completely depolarized by longitudinal shock waves at shock front pressures of P[subscript SW] = 1.5 ± 0.2 GPa. The electric charge that the samples release can be transformed into pulsed power. Miniature explosive-driven ferroelectric generators containing PZT 52/48 ceramic elements with a volume of 0.35-3.5 cm³ are capable of converting the depolarization charge into pulses of high voltage with amplitudes of up to 22 kV and high power with a peak power of up to 0.35 MW within a time interval of 0.3-1.5 µs © 2010 IEEE.


Mining and Nuclear Engineering

Keywords and Phrases

Depolarization; Ferroelectric Ceramics; Lead Zirconate Titanate Oxides; Shock Wave Effects

Document Type

Article - Conference proceedings

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© 2010 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.