Method for manufacturing oxidic nuclear fuel bodies

Details Method for manufacturing oxidic nuclear fuel bodies Method for manufacturing oxidic nuclear fuel bodies

G - Physics

21

C

25/89, 31/89

G21C 3/02 (2006.01) F27B 9/04 (2006.01) G21C 3/62 (2006.01)

Patent

CA 1122398

ABSTRACT Manufacture of oxidic nuclear fuel bodies with oxygen-to-metal ratio of 2.0 ? 0.02 at relatively low sintering temperature in range of 1000-1400°C. Nuclear fuel powder with an arbitrary oxygen-to-metal ratio is mixed with a grain-growth promoting additive (U308) and pressed into blanks. The blanks are subjected to a two-stage operation in a furnace at 1000-1400°C - an oxidative- sintering stage in a carbon dioxide atmosphere and a reducing stage in a hydro- gen containing atmosphere.

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