Radiation effects on optical and dielectric properties of PLZT and PSN ceramics

被引:0
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作者
Sternberg, A
Shebanovs, L
Birks, E
Spule, A
Kulis, P
Ulmanis, U
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TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The effects of gamma-ray, electron and neutron (fluences up to 210(18) n/cm(2)) irradiation on extinction spectra and dielectric characteristics (hysteresis, thermal and frequency dependencies of dielectric permittivity epsilon and losses) in PLZT X/65/35 (X=4.5-11 at%) and PbSc0.5Nb0.5O3 ceramics are analyzed with respect to composition state of phase, and polarization by means of annealing in isochronic and prolonged time regimes. A gradual shift of extinction edge to longer wavelengths, reduction of polarization and epsilon values, and a progressive diffusion of the phase transition with the increase of irradiation fluence are observed in neutron irradiated PLZT ceramics.
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页码:667 / 670
页数:4
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