Production process of a composite nuclear fuel material composed of (U, Pu)O2 aggregates dispersed in a UO2 matrix
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United States of America Patent
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Jan 10, 2006
Grant Date -
Oct 14, 2004
app pub date -
Jul 2, 2002
filing date -
Jul 4, 2001
priority date (Note) -
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Abstract
The invention relates to a production process of a composite material composed of aggregates of a blend of UO2 and of PuO2 dispersed in a UO2 matrix comprising the steps of dry co-grinding of a UO2 powder and of a PuO2 powder in order to obtain a homogenous primary blend, of consolidating the primary blend in order to obtain cohesive aggregates, of sieving the aggregates in a range of 20 to 350 μm, of diluting the sieved aggregates in a UO2 matrix in order to obtain a powder blend, of pelletising the powder blend and of sintering the pellets obtained in order to obtain the composite.
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