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Glasses in the La2O3-B2O3-SiO3 system and crystallization of the ferroelectric LaBSiO5 phaseстатья
Информация о цитировании статьи получена из
Scopus,
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Sigaev V.N., Dechev A.V., Kadyshman S.L., Altakh O.L., Stefanovich S.Y., Molev V.I.
- Журнал: Glass Physics and Chemistry
- Том: 22
- Номер: 1
- Год издания: 1996
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1
- Последняя страница: 8
- Аннотация: Ten glasses close in composition to the stoichiometry of the LaBSiO5 stillwellite-like phase are synthesized, and the specific features of glass synthesis are discussed. The glass properties (density, thermal expansion, T-g, permittivity and dielectric loss at a frequency of 1 MHz, and volume de resistance) are measured, and the crystallization of glasses is studied. The crystallization field of the LaBSiO5 stillwellite is constructed. A narrow region of compositions and heat treatment conditions are determined at which the glass-ceramic samples with ferroelectric properties can be obtained. These samples are characterized by a step change in the temperature curve of the optical second harmonic signal I-2 omega in the temperature range 120-140 degrees C. The appreciable value of dl(2 omega)(T)/dT suggests that the LaBSiO5-based glass-ceramic materials possess both ferroelectric and pyroelectric properties.
- Добавил в систему: Стефанович Сергей Юрьевич