Dielectric properties and crystallite size distribution of modified lead-free sodium-bismuth titanate ceramics

Авторы: Politova E.D., Kaleva G.M., Ivanov S.A., Mosunov A.V., Stefanovich S.Yu, Sadovskaya N.V., Shvartsman V.V.
Журнал: Ferroelectrics
Том: 605
Номер: 1
Год издания: 2023
Издательство: Taylor and Francis
Местоположение издательства: United States
Первая страница: 73
Последняя страница: 82
DOI: 10.1080/00150193.2023.2169012
Аннотация: Influence of (K0.5Bi0.5)TiO3 (KBT) dopants on crystal and microstruc-ture, ferroelectric and dielectric properties of ceramic compositionfrom morphotropic phase boundary in the system (1–x–y)(Na0.5Bi0.5)TiO3 – xBaTiO 3 – y(K0.5Bi 0.5)TiO 3 (x 1⁄4 0.06, y 1⁄4 0–0.15) add-itionally modified by ZnO additives was studied using a complex ofmethods. Changes from 42.8 nm to 62.6 nm of the volume-weightedcrystallite size distribution function G(L) corresponding to coherentscattering regions were observed. The microstructure and the secondharmonic generation data indicated a change in the relative contentof polar nanoregions in tetragonal nonpolar matrix. Decrease in tem-peratures of phase transitions Tm and Td was observed with KBT con-centration increasing.
Добавил в систему: Иванов Сергей Александрович

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