Method for manufacturing oxidic nuclear fuel bodies
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United States of America Patent
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-
Sep 7, 1982
Grant Date -
N/A
app pub date -
Dec 18, 1979
filing date -
Dec 20, 1978
priority date (Note) -
Expired
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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.degree.-1400.degree. C. Nuclear fuel powder with an arbitrary oxygen-to-metal ratio is mixed with a grain-growth promoting additive (U.sub.3 O.sub.8) and pressed into blanks. The blanks are subjected to a two-stage operation in a furnace at 1000.degree.-1400.degree. C. - an oxidative-sintering stage in a carbon dioxide atmosphere and a reducing stage in a hydrogen containing atmosphere.
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