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Phosphate-based glasses and glass ceramics for immobilization of lanthanides and actinidesстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
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 мая 2019 г.
- Авторы: Stefanovsky S.V., Stefanovsky O.I., Danilov S.S., Kadyko M.I.
- Журнал: Ceramics International
- Том: 45
- Год издания: 2019
- Издательство: Pergamon Press Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 9331
- Последняя страница: 9338
- DOI: 10.1016/j.ceramint.2018.06.208
- Аннотация: Borosilicate glasses used to be a choice to vitrify nuclear wastes in most of the countries. However, Russian HLW vitrification plant at the Mayak Production Association (Chelyabinsk Region, Urals) uses phosphate-based glasses. Initially, Russian HLW glasses were based on sodium-aluminophosphate with the following approximate composition(mol.%): 40 Na2O, 20 Al2O3, 40 P2O5. Recently we have modified this composition by replacing of up to 50% Al2O3 with Fe2O3. Such replacement increases chemical durability and resistance to devitrification and radiation of the glasses. The phase composition and structure of these glasses containing ~ 10 wt% RE oxides and ~ 10, ~ 50, and ~ 100 wt% UO3 (over 100 wt%) were studied in details using XRD and FTIR. Glasses and glass-ceramics have high chemical durability. Thus, the glasses and glass ceramics on sodium-aluminum-ironphosphate basis are good waste forms for lanthanide fraction of HLW generated at spent nuclear fuel pyroprocessing and minor actinides.
- Добавил в систему: Стефановский Сергей Владимирович