Recrystallisation of amorphous natural brannerite through annealing: The effect of radiation damage on the chemical durability of brannerite

Autor:	M.G. Blackford, Eric R. Vance, Michael Colella, Huijun Li, Melody L. Carter, Gregory R. Lumpkin, Yingjie Zhang
Rok vydání:	2006
Předmět:	Nuclear and High Energy Physics Aqueous solution Materials science Annealing (metallurgy) Metallurgy Durability Amorphous solid Nuclear Energy and Engineering Aluminosilicate visual_art visual_art.visual_art_medium Radiation damage General Materials Science Ceramic Dissolution Nuclear chemistry
Zdroj:	Journal of Nuclear Materials. 350:293-300
ISSN:	0022-3115
Popis:	An amorphous natural brannerite sample was chosen to study the annealing of the radiation damage through thermal recrystallisation, and subsequently to evaluate the effect of radiation damage on its aqueous durability. Microstructural characterisation of the natural brannerite revealed minor alteration along the rim of the crystal and within cracks. The formation of UO2 particles and soluble Pb–Ca-rich aluminosilicate glass is responsible for the higher U and Pb releases from the recrystallised brannerite. In general, natural brannerite has been shown to be resistant to dissolution over geological time, therefore minor brannerite inclusions in ceramic formulations for immobilisation of actinide-rich radioactive wastes should not have a detrimental effect on the long-term chemical durability of the wasteforms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8d5fa5fe66eab3bd42f0d3b1e166660e https://doi.org/10.1016/j.jnucmat.2006.01.012 Zobrazit plný text záznamu Full Text from ScienceDirect