Manufacture of sintered uranium dioxide

Details Manufacture of sintered uranium dioxide Manufacture of sintered uranium dioxide

1992-04-17

1993-05-18

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

Fuel component

376421, 264 05, G21C 362

Patent

active

052119050

ABSTRACT:
A method of manufacturing sintered uranium dioxide in which a mixture is formed of single crystals of uranium dioxide and uranium dioxide powder. Compacts are formed from granules of the mixture, the compacts are sintered in carbon dioxide, and then reduced in a hydrogen environment at a substantially lower temperature than the sintering temperature. The quantity of the single crystals is selected so as to inhibit excessive grain growth in the compacts during sintering.

REFERENCES:
patent: 4885147 (1989-12-01), Murakami et al.
patent: 4965024 (1990-10-01), Wood
patent: 5061434 (1991-10-01), Wood
Abstract No. 91-262469 of JP-A-3170898 issued Jul. 24, 1991, World Patents Index Latest, Derwent Publications Limited, London.
Abstract No. 89-072773 of JP-A-1025093 issued Jan. 27, 1989, World Patents Index Latest, Derwent Publications Limited, London.
Abstract No. 90-358580 of JP-A-2259596 issued Oct. 22, 1990, World Patents Index Latest, Derwent Publications Limited, London.

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