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- Article name
- Structure, dielectric and piezoelectric characteristics of (1-x-y)BiFeO3-xPbFe0.5Nb0.5O3-yPbTiO3 ceramics
- Authors
- REZNICHENKO L. A., , ilich001@yandex.ru, Research Institute of Physics of 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
NAZARENKO A. V., , alex_v_nazarenko@mail.ru, Southern Scientific Center of the RAS, Rostov-on-Don, Russia
- Keywords
- composite materials / multiferroics / solid solutions / dielectric characteristics / piezoelectric characteristics
- Year
- 2020 Issue 1 Pages 64 - 67
- Code EDN
- Code DOI
- Abstract
- Ceramics of the ternary solid solution system (1-x-y)BiFeO3-xPbFe0.5Nb0.5O3-yPbTiO3 (y = 0.05, 0.175 £ х £ 0.325, Dx = 0.025) were prepared by the conventional solid-phase reaction. By using x-ray diffraction technique the phase composition of the studied objects is determined. The regularities of the formation of microstructural and electrophysical properties of ceramics are established. Grain morphology, dielectric and piezoelectric properties of selected solid solutions were investigated. Dielectric characteristics of 0.75BiFeO3-0.25PbFe0.5Nb0.5O3-0.05PbTiO3ceramics revealed ferroelectric relaxor behavior and region of diffuse phase transition from the paraelectric to ferroelectric phase in the temperature range of 600-800 K. The highest piezoelectric coefficient d33 = 50 pC/N was obtained.
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