A method for the production of sintered pellets from uranium oxides and oxides of other actinides - metals or silicium this

摘要

1,241,976. Actinide oxides. COMITATO NAZIONALE PER L'ENERGIA NUCLEARE. 2 Aug., 1968 [4 Aug., 1967], No. 37063/68. Heading C1A. [Also in Division G6] Sintered pellets of actinide oxides, or mixtures thereof, having an oxygen: actinide ratio of 2 are formed from a powder of actinide oxides, or mixtures thereof, having an oxygen: actinide ratio of 2 or more, and with a specific surface area below 4 m.SP2/SP/g. and particle size less than 40 Á by pressing into pellets and sintering the pellets in a non-oxidizing atmosphere free from hydrocarbons at a temperature between 1150‹ and 1600‹ C. for between 1 and 8 hours, the temperature rise being not more than 600‹ C./hour. The sintering atmosphere may be hydrogen, nitrogen, argon, a mixture of these, or a vacuum. The actinide may be U or Th (see also Division G6).