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U.S. Department of Energy
Office of Scientific and Technical Information

UO$sub 2$ COMPACTION BY SWAGING

Technical Report ·
OSTI ID:4781391
The different parameters influencing cold and hot swaging behavior, such as the nature of the UO/sub 2/, cladding material (nature, diameter, and thickness), number of passes between annealing, and annealing temperature, are given. The influence of tube dimensions depends only on the diameter/thickness ratio. Good results can be obtained starting with a ratio up to 50. Cold swaging processes for the fabrication of a good quality fuel element with a density of 93 to 94% are described. Intermediate annealing at 950 to 1000 deg C might be necessary. The yield reaches 90% if the over-all density range is fixed at plus or minus 0.2 g/cm/sup 3/; the density is required to be uniform within plus or minus 0.2 g/cm/sup 3/ along the rod; and the uniformity of the thickness along the rod is fixed plus or minus 4%. Densities of 96% and more can be obtained by hot swaging, but the quality of the tube is more difficult to control. (P.C.H.)
Research Organization:
Brussels. Centre d'Etude de l'Energie Nucleaire; and Societe Belge pour l'Industrie Nucleaire, Brussels
NSA Number:
NSA-16-030748
OSTI ID:
4781391
Report Number(s):
EURAEC-281; BN-6112-03
Country of Publication:
United States
Language:
English