Phase transitions and transport properties of the bismuth vanadate-based (Bi,La)4(V, Zr)2O11-z ceramics

Ceramic solid solutions (Bi1-y/Lay) 4(V1-xZrx)2O11-z with x = 0-0.05, y = 0-0.16 have been prepared by the solid state reaction method. The samples were studied by differential thermal analysis, X-ray diffraction, dielectric spectroscopy, and impedance methods. The concentration and temperature stabilization regions of the polymorphous α-, β-, γ-, γ-modifications have been determined. The effects observed in dielectric properties, conductivity, and impedance data confirmed the influence both of intrinsic oxygen vacancies and those "pinned" at ferroelectric domain boundaries on the temperature hysteresis of α-β phase transition and their contribution to mechanism of oxygen ion transport.

Авторы
Politova E.D. 1 , Torba J.N.1 , Fortalnova E.A. 1, 2 , Kaleva G.M.1 , Safronenko M.G. 2 , Venskovskii N.U. 2
Редакторы
-
Сборник материалов конференции
Издательство
Polish Academy of Sciences
Номер выпуска
1
Язык
Английский
Страницы
20-23
Статус
Опубликовано
Подразделение
-
Ссылка
-
Номер
-
Том
117
Год
2010
Организации
  • 1 Karpov Institute of Physical Chemistry, Vorontsovo Pole St., 10, 105064, Moscow, Russian Federation
  • 2 Peoples' Friendship University of Russia, Ordzhonikidze St., 3, 117198, Moscow, Russian Federation
Ключевые слова
Dielectric properties; Differential thermal analysis; Ferroelectric materials; Ferroelectricity; Oxygen vacancies; Solid state reactions; Thermoanalysis; X ray diffraction; Bismuth vanadates; Ceramic solid solutions; Ferroelectric domain boundaries; Impedance method; Ion transports; Solid state reaction method; Temperature hysteresis; Temperature stabilization; Ceramic materials
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/2826/