A new method for UF sub 6 conversion to UO sub 2 with excellent characteristics
Several wet and dry methods for the conversion of UF{sub 6} to UO{sub 2} powder, e.g., the ammonium diuranate (ADU) process and the integrated dry route process, have been developed to an industrial scale. Although the UO{sub 2} powders fabricated by conventional methods have good ceramic characteristics, there is room for improvement. To extend burnup of nuclear fuel, a decrease in fission gas release from UO{sub 2} pellets is required. It has been considered that large-grain pellets satisfy this requirement, but it is difficult to obtain such large-grain pellets by using conventional UO{sub 2} powder. A new method has been developed to produce a highly active UO{sub 2} powder that can greatly contribute to improvement of the fabrication process of nuclear fuel pellet. By using this highly active UO{sub 2} powder, large-grain pellets can be made easily, and low-temperature sintering can be achieved.
- OSTI ID:
- 5560571
- Report Number(s):
- CONF-880601--
- Journal Information:
- Transactions of the American Nuclear Society; (USA), Journal Name: Transactions of the American Nuclear Society; (USA) Vol. 56; ISSN TANSA; ISSN 0003-018X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
220300* -- Nuclear Reactor Technology-- Fuel Elements
ACTINIDE COMPOUNDS
BURNUP
CHALCOGENIDES
ENERGY SOURCES
FABRICATION
FISSION PRODUCT RELEASE
FLUORIDES
FLUORINE COMPOUNDS
FUEL PELLETS
FUELS
HALIDES
HALOGEN COMPOUNDS
MATERIALS
METALLURGY
NUCLEAR FUELS
OXIDES
OXYGEN COMPOUNDS
PELLETS
PERFORMANCE
POWDER METALLURGY
PRODUCTION
REACTOR MATERIALS
SINTERING
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM FLUORIDES
URANIUM OXIDES