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Structure-property relationships in BiScO3-PbTiO3 -PbMg1/3Nb2/3O3 ceramics near the morphotropic phase boundaryстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Talanov M.V., Bush А.А., Каmentsev К.Е., Sirotinkin V.P., Segalla А.G.
- Журнал: Journal of the American Ceramic Society
- Том: 101
- Номер: 2
- Год издания: 2018
- Издательство: American Ceramic Society
- Местоположение издательства: United States
- Первая страница: 683
- Последняя страница: 693
- DOI: 10.1111/jace.15225
- Аннотация: The phase structure, dielectric, ferroelectric, and piezoelectric properties of (1-2x)BiScO3 - xPbTiO3 - xPbMg1/3Nb2/3O3 ceramics (x=0.30-0.46) were studied. It was found that an increase in x leads to a structural phase transition between the rhombohedral and tetragonal phase via an intermediate monoclinic phase and to a crossover from the nonergodic relaxor state to the ferroelectric one. It was proposed that at x>0.42 the phase transition changes from second to first order. The assumption about the existence of a tricritical point on the phase diagram at x≈0.42 with the enhanced dielectric response has been made. The observed structure-property relationships of the studied solid solutions are discussed. It is shown that the solid solutions with x=0.42 are characterized by the high piezoelectric parameters (d33 = 509 pC/N, d31 = -178 pC/N, dh = 153 pC/N), which makes possible their applications in sonar equipment.
- Добавил в систему: Чебышев Константин Александрович