Preparation of Tc-NpO2 metal-ceramic compositions and their imitators (Re, Th, Nd) for long-term safe storage of long-life fission productsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 15 февраля 2024 г.
Аннотация:The preparation routes for ceramic-metal matrices (CMM) Tc-NpO2 and their imitators Tc(Re)-ThO2 and Tc(Re)-Nd2O3 with different metal-oxide ratios has been investigated and the physical and chemical properties (such as leaching, thermal stability) of the products were determined. The structure of [Np(H2O)3(TcO4)4]×H2O has been determined by single crystal X-ray diffraction analysis. Thermal decomposition of neptunium pertechnetates (IV and VI) as well as their imitators neodymium and thorium perrhenates were considered in detail. The surface morphology for CMM Tc-NpO2 and the leaching rate of each radionuclide was experimentally determined.