In-pile intragranular densification of oxide fuels (AWBA Development Program)
This report proposes a model to describe in-pile densification of oxide fuels, by both vacancy boil-off due to thermal excitation and vacancy knockout by the passage of fission fragments through the pores. The model includes the migration rates of both vacancies and interstitials to pores and the production of vacancy-rich damage cascades by fission fragments. It has been coupled with a previously reported swelling and gas release model so that it can predict the total dimensional changes of the fuel as well as predicting intragranular densification for both ThO/sub 2/ and UO/sub 2/ fuels for advanced water breeder reactor applications development effort.
- Research Organization:
- Bettis Atomic Power Lab., West Mifflin, Pa. (USA)
- DOE Contract Number:
- EY-76-C-11-0014
- OSTI ID:
- 5289615
- Report Number(s):
- WAPD-TM-1293
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500* -- Power Reactors
Breeding
36 MATERIALS SCIENCE
360206 -- Ceramics
Cermets
& Refractories-- Radiation Effects
ACTINIDE COMPOUNDS
BREEDER REACTORS
CHALCOGENIDES
FISSION FRAGMENTS
FUEL DENSIFICATION
LWBR TYPE REACTORS
NUCLEAR FRAGMENTS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
REACTORS
THERMAL REACTORS
THORIUM COMPOUNDS
THORIUM OXIDES
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES
WATER COOLED REACTORS
WATER MODERATED REACTORS
210500* -- Power Reactors
Breeding
36 MATERIALS SCIENCE
360206 -- Ceramics
Cermets
& Refractories-- Radiation Effects
ACTINIDE COMPOUNDS
BREEDER REACTORS
CHALCOGENIDES
FISSION FRAGMENTS
FUEL DENSIFICATION
LWBR TYPE REACTORS
NUCLEAR FRAGMENTS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
REACTORS
THERMAL REACTORS
THORIUM COMPOUNDS
THORIUM OXIDES
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES
WATER COOLED REACTORS
WATER MODERATED REACTORS