Development of an accident-tolerant fuel composite from uranium mononitride (UN) and uranium sesquisilicide (U3 Si2) with increased uranium loading

The processing steps necessary to prepare a potential accident-tolerant fuel composite consisting of uranium mononitride (UN) combined with uranium sesquisilicide (U3 Si2) are described. Liquid phase sintering was performed with U3 Si2 as the liquid phase combined with UN powder or UN μ-spheres. Var...

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Bibliographic Details
Published inJournal of nuclear materials Vol. 471; no. C; pp. 116 - 121
Main Authors Ortega, Luis H., Blamer, Brandon J., Evans, Jordan A., McDeavitt, Sean M.
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 01.04.2016
Elsevier
Subjects
Accident-tolerant fuels
Composite
High density nuclear fuel
Nuclear fuel
U3Si2
Uranium mononitride
Uranium sequisilicide
High density nuclear fuel
Composite
Uranium sequisilicide
Uranium mononitride
Accident-tolerant fuels
U3Si2
UN
Nuclear fuel
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Summary:The processing steps necessary to prepare a potential accident-tolerant fuel composite consisting of uranium mononitride (UN) combined with uranium sesquisilicide (U3 Si2) are described. Liquid phase sintering was performed with U3 Si2 as the liquid phase combined with UN powder or UN μ-spheres. Various UN to U3 Si2 ratios were tested which resulted in up to 94% dense pellets. Composite UN-U3 Si2 samples had greater than 30% more uranium content than UO2.
Bibliography:USDOE
DE–NE0000566
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2016.01.014