Release of fission products from irradiated aluminide fuel at high temperatures
Irradiated uranium-aluminide fuel plates of 40% /sup 235/U enrichment were heated for the determination of the amounts of fission products released at temperatures up to and higher than the melting point of the fuel cladding material. The release of fission products from the fuel plate at temperatures below 500/sup 0/C was negligible. Three stages of fission product release were observed. The first rapid release was observed at about 561/sup 0/C along with blistering of the plates. The next release, which occurred at 585/sup 0/C, might have been caused by melting of the Type 6061 aluminum alloy. The last release of fission product gases occurred at 650/sup 0/C, which probably corresponds to the eutectic temperature of the uranium-aluminum alloy. The released material was mostly xenon, and small amounts of iodine and cesium were observed.
- Research Organization:
- Kyoto Univ., Osaka
- OSTI ID:
- 6278211
- Journal Information:
- Nucl. Sci. Eng.; (United States), Vol. 87:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM ALLOYS
FISSION PRODUCT RELEASE
IRRADIATION
FUEL ELEMENTS
URANIUM
CESIUM
ENRICHMENT
FUEL-CLADDING INTERACTIONS
HIGH TEMPERATURE
IODINE
MELTING POINTS
PLATES
URANIUM 235
XENON
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALKALI METALS
ALLOYS
ALPHA DECAY RADIOISOTOPES
ELEMENTS
EVEN-ODD NUCLEI
FLUIDS
GASES
HALOGENS
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
METALS
MINUTES LIVING RADIOISOTOPES
NONMETALS
NUCLEI
PHYSICAL PROPERTIES
RADIOISOTOPES
RARE GASES
REACTOR COMPONENTS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES
220300* - Nuclear Reactor Technology- Fuel Elements