A poled lead zirconate titanate Pb(Zr52Ti48)O3 (PZT) polycrystalline piezoelectric ceramic energy-carrying element of a compact explosive-driven power generator was subjected to a longitudinal explosive shock wave (the wave front traveled along the polarization vector P0). The shock compression of the element at pressures of 1.5-3.8 GPa caused almost complete depolarization of the sample. Shock wave velocity in the PZT was determined to be 3.94 ± 0.27 km/s. The electric charge stored in a ferroelectric, due to its remnant polarization, is released during a short time interval and can be transformed into pulsed power. Compact explosive-driven power sources utilizing longitudinal shock wave depolarization of PZT elements of 0.35 to 3.3 cm3 volume are capable of producing pulses of high voltage, with amplitudes up to 22 kV, and up to 350 kW peak power.
S. I. Shkuratov et al., "Longitudinal Shock Wave Depolarization of Pb(Zr₅₂Ti₄₈)O₃ Polycrystalline Ferroelectrics and Their Utilization in Explosive Pulsed Power," Proceedings of the 2005 Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, American Institute of Physics (AIP), Jan 2006.
The definitive version is available at http://dx.doi.org/10.1063/1.2263532
2005 Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
Mining and Nuclear Engineering
Keywords and Phrases
Ferroelectric Ceramics; High-Pressure Effects; Piezoceramics; Shock Wave Effects; Explosions; Lead compounds; Titanium compounds; Zirconium
Article - Conference proceedings
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