Abstract
PLZT and PSN ceramics have been exposed to 7-radiation (energy ^1.15 MeV, dose up to 3 - 109rad), electron flux (4.5 MeV, dose up to 3, 1018electr./cm2) and fast neutrons (> 0.1 MeV, dose up to 1018n/cm2). The irradiated material was used to study radiation effects on dielectric parameters (a and tg6 were measured at frequencies from 1 kHz to 5 MHz), polarization (dielectric hysteresis quasistatic loops) and non-linear optical properties (I2W)- The measurements were made in the region of phase transition as well as to examine annealing of radiation-induced defects. As compared to PLZT the PSN ceramics is more resistant to radiation, the most sensitive PLZT compounds being with 7 X 9.5 at.% of La. Obtained results are explained by the change of ion charge, redistribution of vacancies in A and B sublattices of PLZT and by possible ion ordering in sublattice B of PSN with account for intrinsic fields in the relevant compounds.
| Original language | English |
|---|---|
| Pages (from-to) | 89-101 |
| Number of pages | 13 |
| Journal | Ferroelectrics |
| Volume | 90 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Feb 1989 |
| Externally published | Yes |
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