Irradiation performance of helium-bonded uranium--plutonium carbide fuel elements. [LMFBR]
Conference
·
OSTI ID:6323150
The current irradiation program of helium-bonded uranium--plutonium carbide elements is achieving its original goals. By August 1978, 15 of the original 171 helium-bonded elements had reached their goal burnups including one that had reached the highest burnup of any uranium--plutonium carbide element in the U.S.--12.4 at.%. A total of 66 elements had attained burnups over 8 at.%. Only one cladding breach had been identified at that time. In addition, the systematic and coordinated approach to the current steady-state irradiation tests is yielding much needed information on the behavior of helium-bonded carbide fuel elements that was not available from the screening tests (1965 to 1974). The use of hyperstoichiometric (U,Pu)C containing approx. 10 vol% (U,Pu)/sub 2/C/sub 3/ appears to combine lower swelling with only a slightly greater tendency to carburize the cladding than single-phase (U,Pu)C. The selected designs are providing data on the relationship between the experimental parameters of fuel density, fuel-cladding gap size, and cladding type and various fuel-cladding mechanical interaction mechanisms.
- Research Organization:
- Los Alamos Scientific Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6323150
- Report Number(s):
- LA-UR-78-2932; CONF-790306-3
- 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
BURNUP
CARBIDES
CARBON COMPOUNDS
CRYSTAL STRUCTURE
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
FUEL ELEMENTS
FUEL-CLADDING INTERACTIONS
IRRADIATION
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MICROSTRUCTURE
PERFORMANCE
PERFORMANCE TESTING
PHYSICAL RADIATION EFFECTS
PLUTONIUM CARBIDES
PLUTONIUM COMPOUNDS
RADIATION EFFECTS
REACTOR COMPONENTS
REACTORS
SWELLING
TESTING
TRANSURANIUM COMPOUNDS
URANIUM CARBIDES
URANIUM COMPOUNDS
210500* -- Power Reactors
Breeding
36 MATERIALS SCIENCE
360206 -- Ceramics
Cermets
& Refractories-- Radiation Effects
ACTINIDE COMPOUNDS
BREEDER REACTORS
BURNUP
CARBIDES
CARBON COMPOUNDS
CRYSTAL STRUCTURE
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
FUEL ELEMENTS
FUEL-CLADDING INTERACTIONS
IRRADIATION
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MICROSTRUCTURE
PERFORMANCE
PERFORMANCE TESTING
PHYSICAL RADIATION EFFECTS
PLUTONIUM CARBIDES
PLUTONIUM COMPOUNDS
RADIATION EFFECTS
REACTOR COMPONENTS
REACTORS
SWELLING
TESTING
TRANSURANIUM COMPOUNDS
URANIUM CARBIDES
URANIUM COMPOUNDS