Fabrication of low density urania--thoria fuel pellets (LWBR Development Program)

Technical Report · Sat Jun 01 04:00:00 EDT 1968

OSTI ID:6743215

Williams, G H; Rodriguez, M K; Johnson, R G.R.

Low-density seed-size (< 0.250-inch diameter) UO/sub 2/-ThO/sub 2/ pellets were fabricated utilizing assocated volatile additives. Dextrose D-16 sugar (size -140/+200 mesh) produced acceptable porosity characteristics. Reducing the binder content reduced the amount of microcracking and elongated intergranular porosity. Micronizing subsequent to centrifuging also significantly reduced the amount of this porosity in ball-milled, acid-leached powder. Dextrose additions to produce 80, 85, and 90% of theoretical density sintered pellets with high-density matrices were determined. (NSA 22: 41088)

• Research Organization: Bettis Atomic Power Lab., Pittsburgh, PA (USA)
• DOE Contract Number: AT(11-1)-GEN-14
• OSTI ID: 6743215
• Report Number(s): WAPD-TM-721
• Country of Publication: United States
• Language: English

Related Subjects

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11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500 -- Power Reactors
Breeding
ACTINIDE COMPOUNDS
BREEDER REACTORS
CHALCOGENIDES
FABRICATION
FUEL PELLETS
LWBR TYPE REACTORS
OXIDES
OXYGEN COMPOUNDS
PELLETS
POROSITY
REACTORS
SINTERING
THERMAL REACTORS
THORIUM COMPOUNDS
THORIUM OXIDES
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES
WATER COOLED REACTORS
WATER MODERATED REACTORS