/sup 238/Pu fuel form processes. Monthly report, July--August 1978
Microstructural analysis of /sup 238/PuO/sub 2/ pellets fabricated in the PuFF parametric experiment is in progress to relate incidence of cracking to process conditions, microstructure, and density. Additional precipitation tests were performed to determine the cause of inferior /sup 239/PuO/sub 2/ feed powder made in SRP precipitations of Pu(IV) oxalate. None of the variables tested caused the abnormally fine particle and large agglomerates that exist in plant feed. These variables included residual heel in precipitator, /sup 238/Pu vs /sup 239/Pu, stirring rate during precipitation, high Pu concentration, nitric acid concentration, and precipitation temperature. Heating of 95%-dense, cold-pressed-and-sintered /sup 238/PuO/sub 2/ pellets at 1200/sup 0/C and above after 14 months' aging produced large internal cracks attributable to decay helium. Laboratory-scale and production-scale fabrication tests of /sup 238/PuO/sub 2/ shard fuel demonstrated that acceptable shards can be produced from calcined plutonium oxalate powder for Milliwatt Heat Sources. A scaleup problem in the production test resulted in /sup 238/PuO/sub 2/ shards of morphology inferior to that of shards made in the laboratory.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
- DOE Contract Number:
- EY-76-C-09-0001
- OSTI ID:
- 6498998
- Report Number(s):
- DPST-78-128-7/8
- Country of Publication:
- United States
- Language:
- English
Similar Records
/sup 238/Pu fuel form processes. Savannah River Laboratory monthly report, May/June 1978
/sup 238/Pu fuel form processes. Savannah River Laboratory monthly report
/sup 238/Pu fuel form processes. Quarterly report, January-March 1980
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Sat Dec 31 23:00:00 EST 1977
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OSTI ID:6536972
/sup 238/Pu fuel form processes. Savannah River Laboratory monthly report
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/sup 238/Pu fuel form processes. Quarterly report, January-March 1980
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Sat Feb 28 23:00:00 EST 1981
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OSTI ID:6551854
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07 ISOTOPE AND RADIATION SOURCES
070301* -- Isotopic Power Supplies-- Design & Fabrication-- (-1987)
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NESDPS Office of Nuclear Energy Space and Defense Power Systems
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070301* -- Isotopic Power Supplies-- Design & Fabrication-- (-1987)
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
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NESDPS Office of Nuclear Energy Space and Defense Power Systems
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PLUTONIUM 238
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PLUTONIUM DIOXIDE
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TRANSURANIUM COMPOUNDS
YEARS LIVING RADIOISOTOPES