Electric Breakdown of Longitudinally Shocked Pb(Zr0.52Ti 0.48)O₃ Ceramics
Electric breakdown of longitudinally-shock-compressed Pb(Zr₀.₅₂Ti₀.₄₈)O₃ (PZT 52/48) ferroelectric ceramics was experimentally investigated. It was found that a dependence of breakdown field strength, Eg, of shocked ferroelectrics on the thickness of the element, d, ranging from 0.65 to 6.5 mm is described by the E g (d) = γ · d[superscript -w] law that describes the breakdown of dielectrics at ambient conditions. It follows from the experimental results that the tunnel effect is a dominant mechanism of injection of prime electrons in the shocked ferroelectric elements. It was demonstrated that electric breakdown causes significant energy losses in miniature autonomous generators based on shock depolarization of poled ferroelectric elements. © 2011 American Institute of Physics.
S. I. Shkuratov et al., "Electric Breakdown of Longitudinally Shocked Pb(Zr0.52Ti 0.48)O₃ Ceramics," Journal of Applied Physics, American Institute of Physics (AIP), Jan 2011.
The definitive version is available at http://dx.doi.org/10.1063/1.3609074
Mining and Nuclear Engineering
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© 2011 American Institute of Physics (AIP), All rights reserved.