Structual changes of the PLZT ceramics irradiated by high-current pulsed electron beam

Andris Sternberg; Sergei I. Tiutiunnikov; Vadim V. Efimov

doi:10.1117/12.515786

8 August 2003 Structual changes of the PLZT ceramics irradiated by high-current pulsed electron beam

Andris Sternberg, Sergei I. Tiutiunnikov, Vadim V. Efimov

Proceedings Volume 5122, Advanced Organic and Inorganic Optical Materials; (2003) https://doi.org/10.1117/12.515786
Event: 2003 Chapter books, 2003, Bellingham, WA, United States

Abstract

First time comprehensive study of high-current pulsed electron irradiation effects on the structural, optical and dielectric properties of relaxor (Pb_(1-x)La_x)(Zr_0.65Ti_0.35)_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.

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Andris Sternberg, Sergei I. Tiutiunnikov, and Vadim V. Efimov "Structual changes of the PLZT ceramics irradiated by high-current pulsed electron beam", Proc. SPIE 5122, Advanced Organic and Inorganic Optical Materials, (8 August 2003); https://doi.org/10.1117/12.515786

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