Examination of T-111 clad uranium nitride fuel pins irradiated up to 13,000 hours at a clad temperature of 990/sup 0/C
The examination of 27 fuel pins irradiated in the Plum Brook reactor facility is described. Curtailment of NASA sponsored nuclear programs prevented a complete examination of all pins. Nevertheless, results include fuel pin integrity, clad ductility, clad strain, fission gas release, fuel burnup, fuel swelling, neutron fluence, metallography, and instrumentation reliability. Twenty-two fuel pins were tested for fission gas leaks; 13 pins leaked with two having visible cracks. Fuel swelling appeared to be primarily burnup dependent for burnup values up to 2 at. %. Maximum burnup reached in these tests was 2.34 at. %. In general, the fuel pellets did not crack or crumble and fuel metallography remained unchanged. The amount of fission gas released from the fuel was low, generally less than 0.5%. The maximum amount released was 2%. No incompatibilities between fuel, liner, and clad were evident.
- Research Organization:
- National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
- OSTI ID:
- 5315128
- Report Number(s):
- NASA-TM-X-2950; ON: DE84900884
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210600* -- Power Reactors
Auxiliary
Mobile Package
& Transportable
ACCIDENTS
ACTINIDE COMPOUNDS
ALLOYS
BURNUP
ENRICHED URANIUM REACTORS
FISSION PRODUCT RELEASE
FUEL ELEMENT FAILURE
FUEL ELEMENTS
FUEL PINS
IRRADIATION REACTORS
LEAK TESTING
MATERIALS TESTING REACTORS
MOBILE REACTORS
NESDPS Office of Nuclear Energy Space and Defense Power Systems
NITRIDES
NITROGEN COMPOUNDS
PBR REACTOR
PERFORMANCE TESTING
PNICTIDES
POWER REACTORS
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SPACE POWER REACTORS
SWELLING
TANK TYPE REACTORS
TANTALUM ALLOY-T111
TANTALUM ALLOYS
TANTALUM BASE ALLOYS
TESTING
URANIUM COMPOUNDS
URANIUM NITRIDES
WATER COOLED REACTORS
WATER MODERATED REACTORS
210600* -- Power Reactors
Auxiliary
Mobile Package
& Transportable
ACCIDENTS
ACTINIDE COMPOUNDS
ALLOYS
BURNUP
ENRICHED URANIUM REACTORS
FISSION PRODUCT RELEASE
FUEL ELEMENT FAILURE
FUEL ELEMENTS
FUEL PINS
IRRADIATION REACTORS
LEAK TESTING
MATERIALS TESTING REACTORS
MOBILE REACTORS
NESDPS Office of Nuclear Energy Space and Defense Power Systems
NITRIDES
NITROGEN COMPOUNDS
PBR REACTOR
PERFORMANCE TESTING
PNICTIDES
POWER REACTORS
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SPACE POWER REACTORS
SWELLING
TANK TYPE REACTORS
TANTALUM ALLOY-T111
TANTALUM ALLOYS
TANTALUM BASE ALLOYS
TESTING
URANIUM COMPOUNDS
URANIUM NITRIDES
WATER COOLED REACTORS
WATER MODERATED REACTORS