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Specific features of phase transitions and the conduction of La2Mo2O9 oxide-ion conducting compound doped with vanadiumстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Voronkova V.I., Kharitonova E.P., Krasilnikova A.E.
- Журнал: Crystallography Reports
- Том: 55
- Номер: 2
- Год издания: 2010
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 276
- Последняя страница: 282
- DOI: 10.1134/S1063774510020203
- Аннотация: The X-ray powder analysis, calorimetric studies, and conductivity measurements of a series of ceramic La2Mo2-xVxOy specimens with different vanadium content are performed with the aim of following the dynamics of phase formation of the low-temperature a, high-temperature b, and metastable b(ms) phases. At x >= 0.06, the cubic phase becomes stable and the monoclinic phase vanishes; therefore, the main a -> b transition is suppressed. According to the data of differential thermal analyses, a weak thermal anomaly is observed in the range 450-470 C at x >= 0.06. This anomaly is indicative of the b(ms) -> b transition due to the conversion of the cubic phase with statically disordered oxygen atoms into the cubic phase with dynamic disorder. The conductivity of the high-temperature b phase obeys the Vogel-Tammann-Fulcher law.
- Добавил в систему: Харитонова Елена Петровна