Peculiarities of Modified Ceramics (Na0.5Bi0.5)TiO3–BaTiO3–(K0.5Na0.5)NbO3

Авторы: Kalevaa G.M., Politova E.D., Mosunov A.V., Ilina T.S., Kiselev D.A.
Журнал: Russian Journal of Physical Chemistry A
Том: 97
Номер: 5
Год издания: 2023
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 965
Последняя страница: 970
DOI: 10.1134/S0036024423050126
Аннотация: Single-phase ceramic samples with new compositions (1–x–у)(Na0.5Bi0.5)TiO3–хBaTiO3–у(K0.5Na0.5)NbO3 (x=0.05, у=0–0.15) modified with ZnO and GeO2 additions were obtained by solidphase synthesis. Their crystal structure, microstructure, and dielectric and local piezoelectric properties were studied. A phase with a perovskite structure with a pseudocubic unit cell was found to form in all of the synthesized samples; it was shown that the unit cell volume increased as a result of the partial replacement of base cations by complex additive cations. The ferroelectric phase transitions were confirmed by dielectric spectroscopy. Residual piezoelectric hysteresis loops were obtained for the synthesized samples in the polarization switching spectroscopy mode, which confirmed the switching of ferroelectric polarization.
Добавил в систему: Мосунов Александр Викторович

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