CARBIDE FUEL DEVELOPMENT. Phase IV Report, September 15, 1961-September 30, 1962
Single-phase solid solution UC-- PuC powders were prepared by the carbon reduction of a mixture of UO/sub 2/ and PuO/sub 2/. A simple method was developed to determine the completion of the reaction by analyzing the exhaust gas from the furnace for CO. Four groups of solid solution (U/sub 0.8/Pu/sub 0.2/ )C/sub 0.95/ pellets were prepared for irradiation tests. The groups differed in the enrichment of uranium and in the presence or absence of nickel sintering aid. Without sintering aid, densities averaged about 92% of theoretical; with sintering aid the average density was about 96% of theoretical. The second phase, promoted by the use of nickel sintering aid, was identified as sesquicarbide. IRRADIATION TESTS. The post-irradiation examination of UC specimens irradiated to 16,400 Mwd/tonne (avg) at 1400 deg F and 9.6 kw./ft was completed. The effect of radiation on UC was slight: 0.001 in. diametral increase, 0.4% fission gas release, and no microstructural changes. The (U/sub 0.8/Pu/sub 0.2/)C/sub 0.95/ irradiation tests were redesigned for insertion in GETR. All the irradiation specimens were assembled, and assembly of the capsules was started. One fueled and one dummy capsule were shipped to the test site. (auth)
- Research Organization:
- United Nuclear Corp. Development Div., White Plains, N.Y.; Carborundum Co., Niagara Falls, N.Y.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-029298
- OSTI ID:
- 4685476
- Report Number(s):
- UNC-5055
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBIDES
CARBON
CARBON MONOXIDE
DENSITY
ENRICHMENT
FABRICATION
FISSION PRODUCTS
FUEL CANS
FUELS
FURNACES
GASES
GETR
HIGH TEMPERATURE
INTERMETALLIC COMPOUNDS
IRRADIATION
MATERIALS TESTING
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
NICKEL
PHASE DIAGRAMS
PLANNING
PLUTONIUM CARBIDES
PLUTONIUM OXIDES
PREPARATION
QUALITATIVE ANALYSIS
RADIATION EFFECTS
REACTION KINETICS
REDUCTION
SAMPLING
SOLID SOLUTIONS
URANIUM CARBIDES
URANIUM DIOXIDE