Electron Backscattered Diffraction in the Study of Matrices for High-Level Wastes

Авторы: Yudintsev S.V., Nickolsky M.S., Stefanovskaya O.I., Nikonov B.S., Ulanova A.S.
Журнал: Doklady Earth Sciences
Том: 507
Номер: 2
Год издания: 2022
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 349
Последняя страница: 355
DOI: 10.1134/S1028334X22600827
Аннотация: The possibilities of scanning electron microscopy and electron backscatter diffraction (EBSD) inthe study of matrices for immobilization of high-level radioactive wastes are shown from the example of twosamples with Th (a Pu imitator) and Nd (an imitator of the REE–actinide fraction). The samples were pro-duced by melting-crystallization and are composed of murataite and zirconolite (sample with Th) orpyrochlore, zirconolite, and rutile (sample with Nd). Murataite is a polysome 8C, and zirconolite includespolytypes 3T (sample with Th) or 4M (sample with Nd). The formation of zirconolite in a sample with Nd isprobably caused by partial reduction of Ti4+ up to Ti3+ upon the reaction of melt with a glassy carbon crucible.It is concluded with the efficiency of EBSD in a study of crystalline matrices for radioactive wastes.
Добавил в систему: Стефановская Ольга Ивановна

	ИСТИНА	Войти в систему Регистрация
	ИСТИНА ЦЭМИ РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА