Abstract

The design and performance of a compact explosive-driven high-voltage primary power generator is presented. The generator utilizes a fundamental physical effect—depolarization of ferroelectric materials under longitudinal shock wave impact, when the shock wave is initiated along the polarization vector P. These primary power sources, containing energy-carrying elements made of lead zirconate titanate poled piezoelectric ceramics, with the volume from 0.35 to 3.3 cm3, are capable of producing pulses of high voltage with amplitudes up to 21.4 kV. The amplitude and full width at half-maximum of the high-voltage pulses are directly proportional to the thickness of the energy-carrying element, with coefficients of proportionality of 3.42±0.12 kV/mm (amplitude) and 0.125±0.01 µs/mm (width). The specific energy density of these ferroelectric energy-carrying elements reaches 76 mJ/cm3.

Department(s)

Mining and Nuclear Engineering

Keywords and Phrases

Dielectric Depolarisation; Ferroelectric Ceramics; Pulsed Power Supplies; Shock Wave Effects

Library of Congress Subject Headings

Ferroelectric devices
Lead compounds
Pulse generators

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2004 American Institute of Physics (AIP), All rights reserved.

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