Impact of distinct sintering temperatures in pellets to strontium immobilization
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Brazilian Journal of Radiation Sciences
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The immobilization of radioactive strontium (Sr) from liquid effluents, a
byproduct of nuclear fission and accidents, presents significant environmental and public
health challenges. This study evaluates the immobilization of Sr in a glass matrix by
comparing the effects of different sintering temperatures. The analyses started from three
temperatures 800ºC, 900ºC and 1000ºC for each of the four compositions, which vary the
addition of niobium (Nb) content in the vitreous matrix by 2%, 4%, 6% and 8% in mol.
The highest temperature was excluded because its deformation did not match the final
objective, at 900ºC the compositions had better results in density and water absorption,
so that at the same temperature the composition with 4% niobium responded better to
the results. The study underscores the significance of treating temperature and Nb content
in the glass matrix for effective Sr immobilization, offering valuable insights for the
development of safe and sustainable nuclear waste management strategies.
Como referenciar
SANCHES, G.O.P.; ARAUJO, M.S.; MELLO-CASTANHO, S.R. Impact of distinct sintering temperatures in pellets to strontium immobilization. Brazilian Journal of Radiation Sciences, v. 12, n. 4A, p. 1-10, 2024. DOI: 10.15392/2319-0612.2024.2652. Disponível em: https://repositorio.ipen.br/handle/123456789/49082. Acesso em: 20 Jan 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.