Title

PZT 52/48 Ferroelectric Ceramics: Depolarization and Electric Breakdown under Longitudinal Explosive Shock

Abstract

Electric breakdown within longitudinally explosively shockedPb(Zr₀.₅₂Ti₀.₄₈)O₃ (PZT 52/48) ferroelectric ceramics was investigated. It was experimentally demonstrated that electric breakdown causes significant energy losses in miniature autonomous generators based on shock depolarization of poled ferroelectric elements. We found that a dependence of breakdown field strength, E[subscript g], of shocked ferroelectric, on the thickness of the element, d, is described by the E[subscript g](d) = γ·d[superscript -w] law which describes breakdown measurements for a variety of dielectric materials at ambient conditions. The analysis of experimental results showed that the tunnel effect is a dominant mechanism of injection of prime electrons in the shocked ferroelectrics. © 2011 IEEE.

Meeting Name

18th IEEE International Pulsed Power Conference, PPC 2011

Department(s)

Mining and Nuclear Engineering

Sponsor(s)

Pulsed Power Sci. Technol. Comm. IEEE Nucl. Plasma Sci. Soc.
Air Force Office of Scientific Research
Defense Threat Reduction Agency
Department of Energy
L-3 Communications, Pulse Sciences

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2011 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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