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Proceedings Paper

Structual changes of the PLZT ceramics irradiated by high-current pulsed electron beam
Author(s): Andris Sternberg; Sergei I. Tiutiunnikov; Vadim V. Efimov
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Paper Abstract

First time comprehensive study of high-current pulsed electron irradiation effects on the structural, optical and dielectric properties of relaxor (Pb(1-x)Lax)(Zr0.65Ti0.35)1-x/4O3 ceramics with x = 4 and 9.75 at.% have been provided. The electron beam had the following parameters: energy E = 250 keV, current density I = 1000 A/cm2, pulse duration τ = 300 ns, beam density - 1015 electrons/cm2 per pulse. Infrared reflectivity spectra in the region of 100 ÷ 2000 cm-1 were obtained in virgin, irradiated by 1500 pulses. The reconstruction of perovskite ABO3 structure in irradiated samples has been studied by complex use of X-ray and neutron scattering and IR spectroscopy techniques revealing the changes in transverse and longitudinal phonon modes. Radiation effects on temperature behavior of dielectric permittivity ε in the region of phase transition were studied. The possible mechanisms of pulsed electron irradiation effect in relaxor PLZT ceramics are discussed.

Paper Details

Date Published: 8 August 2003
PDF: 10 pages
Proc. SPIE 5122, Advanced Organic and Inorganic Optical Materials, (8 August 2003); doi: 10.1117/12.515786
Show Author Affiliations
Andris Sternberg, Univ. of Latvia (Latvia)
Sergei I. Tiutiunnikov, Joint Institute for Nuclear Research (Russia)
Vadim V. Efimov, Joint Institute for Nuclear Research (Russia)


Published in SPIE Proceedings Vol. 5122:
Advanced Organic and Inorganic Optical Materials
Andris Krumins; Donats Millers; Inta Muzikante; Andris Sternbergs; Vismants Zauls, Editor(s)

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