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- Article name
- Phase composition and dielectric characteristics of ternary solid solutions based on bismuth ferrite
- Authors
- REZNICHENKO L. A., , ilich001@yandex.ru, Research Institute of Physics of Southern Federal University, Rostov-on-Don, Russia
PAVLENKO A. V., , tolik_260686@mail.ru, Research Institute of Physics, Southern Federal University, Rostov-on-Don, Russia
SHILKINA L. A., , lid-shilkina@yandex.ru, Research Institute of Physics, Southern Federal University, Rostov-on-Don, Russia
BOLDYREV N. A., , nboldyrev@sfedu.ru, Research Institute of Physics Southern Federal University, Rostov-on-Don, Russia
- Keywords
- composite materials / multiferroics / solid solutions / dielectric characteristics / phase composition
- Year
- 2020 Issue 2 Pages 33 - 37
- Code EDN
- Code DOI
- Abstract
- Ceramics of seven quasi-binary concentration sections of the ternary solid solution system (1-x-y)BiFeO3-xPbFe0.5Nb0.5O3-yPbTiO3 was prepared by the conventional solid-phase reaction method in the range of 0.05 £ x £ 0.325; 0.05 £ y £ 0.325. By using x-ray diffraction technique the phase diagram of the system was constructed which was shown to contain the regions of tetragonal and rhombohedral symmetry and the morphotropic phase boundary between them. The regularities of the formation of the studied objects dielectric characteristics are established. Dielectric characteristics of 0.65BiFeO3-0.1PbFe0.5Nb0.5O3-0.25PbTiO3 and 0.625BiFeO3-0.1PbFe0.5Nb0.5O3-0.275PbTiO3 ceramics revealed ferroelectric relaxor behavior and region of diffuse phase transition from the paraelectric to ferroelectric phase in the temperature range of 600-800 K.
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