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Interactions in the NdF3-Nd2O3-MF2 (M = Ba, Sr) systemsстатья
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: 20 сентября 2013 г.
- Авторы: Zolotova K.N., Kolbanev I.V., Ardashnikova E.I., Abakumov A.M., Dolgikh V.A.
- Журнал: Russian Journal of Inorganic Chemistry
- Том: 56
- Номер: 10
- Год издания: 2011
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1625
- Последняя страница: 1633
- DOI: 10.1134/S0036023611100275
- Аннотация: Isothermal anneals (at 873 K) and powder X-ray diffraction were used to study isothermal sections of phase diagrams of the NdF3-Nd2O3-MF2 (M = Ba, Sr) systems. In studying the NdF3-Nd2O3-BaF2 system, classical solid-phase synthesis was supplemented with mechanochemical activation of feedstock mixtures or BaF2 activated with gaseous hydrogen fluoride was used. In both systems, a solid solution with the fluorite structure based on MF2 and NdOF phases, a solid solution with the tysonite structure based on NdF3, and an ordered fluorite-related phase Ba4Nd3F17 were found. The NdOF-based solid solutions were shown to have polymorphism: beta(trig) reversible arrow alpha(cub) at approximate to 800 K; a new trigonal phase of these solid solutions has been discovered. The effect of a dimensional factor (RBA2+ > RSr2+) on phase formation and unit cell parameters of the solid solutions was traced.
- Добавил в систему: Долгих Валерий Афанасьевич