|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ИНХС РАН |
||
Evolution of cations speciation during the initial leaching stage of alkali-borosilicate-glassesстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Дата последнего поиска статьи во внешних источниках: 12 августа 2020 г.
- Авторы: Farid O.M., Ojovan M.I., Abdel Rahman R.O.
- Журнал: MRS Advances
- Том: 5
- Номер: 3-4
- Год издания: 2020
- Первая страница: 185
- Последняя страница: 193
- DOI: 10.1557/adv.2020.39
- Аннотация: Alkali-borosilicate glasses (ABS) are used as host immobilization matrices fordifferent radioactive waste streams and are characterized by their ability to incorporate awide variety of metal oxides with respectively high waste loadings. The vitreous wasteform isalso characterized by very good physical and chemical durability. The durability of three ABScompositions were analyzed by investigating their leaching behavior using the MCC1 testprotocol and these data were used to investigate the waste components retention in the alteredlayer and the evolution of the interfacial water composition during the test. The resultsindicated that the Mg species evolution is exceptional with respect to other alkaline elementsand dependent on glass matrix composition and leaching progress, while transition elementsspeciation is fairly constant throughout leaching process and independent on glasscompositions. Si and B species are changing during leaching process and are affected bywaste composition. For modified wasteform sample, evolution of Mg, Si and B species isrespectively constant, whereas at highest waste loading, these elements have fairly constantspeciation evolution within the first 2 weeks of leaching.
- Добавил в систему: Ожован Михаил Иванович