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Thermovaporous synthesis of fine crystalline gahnite (ZnAl2O4)статья
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: 2 апреля 2015 г.
- Авторы: Ivakin Yu D., Danchevskaya M.N., Ovchinnikova O.G., Muravieva G.P.
- Журнал: Journal of Materials Science
- Том: 41
- Номер: 5
- Год издания: 2006
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 1377
- Последняя страница: 1383
- DOI: 10.1007/s10853-006-7410-1
- Аннотация: In the present paper the formation mechanism of zinc aluminate (gahnite, ZnAl2O4) under hydrothermal and thermovaporous conditions has been investigated. The gahnite was obtained by treatment in water medium of a mixture of zinc oxide and oxide or hydroxide of aluminum at 180–400°C and under pressure of water vapor 1–26 MPa. It was found that formation of gahnite goes in accordance with the solid-phase mechanism. The impurities added into the reaction medium have an influence upon the rate of transformation. In this case the rate of reaction is controlled by nucleation. The impurities incorporate into the structure of gahnite and change the structural characteristics of the microcrystals, defects concentration and the optical properties of gahnite. The luminescence of Eu3+ ions is sensitive to the change of gahnite structure. Gahnite synthesized in ammonia medium has photoluminescence bands at 382 and 547 nm with the excitation band at 267 nm. These PL bands are attributed to oxygen vacancies.
- Добавил в систему: Ивакин Юрий Дмитриевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Sintez_ganita.pdf | 1,4 МБ | 25 марта 2015 [YuIvakin] |