Uranium nitride and silicide composite fuels used to reduce fuel oxidation
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Journal of Engineering Research
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In the 1960s, the space nuclear
program for developing reactor propulsion
designs led to uranium mononitride (UN)
exploration as a fuel. Since then, the UN has
gained traction because of its superior thermal
conductivity and uranium density compared
to standard UO2. Reactors using sodium and
lead as liquid coolants have a. long history
with UN fuel. More recently, a combination of
uranium UN and uranium silicide (U3Si2) has
emerged as a promising fuel option for power
units. This composite fuel offers enhanced
tolerance and resilience. However, several
silicide compounds exist, such as USi, USi2,
USi3, U3Si, U3Si2, and U3Si5. Instead, they use
nitride-silicide composites, such as UN-U3Si5.
The UN-U3Si5 fuel, which features a secondary
fissile phase with an elevated uranium density,
has garnered significant interest. In this study,
we compare the performance of UN-U3Si2 and
UN-U3Si5 using Kanthal APMT as cladding.
Como referenciar
GOMES, DANIEL de S. Uranium nitride and silicide composite fuels used to reduce fuel oxidation. Journal of Engineering Research, v. 4, n. 17, p. 1-8, 2024. DOI: 10.22533/at.ed.3174172421065. Disponível em: https://repositorio.ipen.br/handle/123456789/48834. Acesso em: 30 Dec 2025.
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.