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US 10,032,528 B2Granted
Fully ceramic micro-encapsulated (FCM) fuel for CANDUs and other reactors
AssigneeUltra Safe Nuclear Corporation
InventorFrancesco Venneri
Life of this patent
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Abstract
A fuel pellet for a nuclear reactor includes a plurality of tristructural-isotropic fuel particles embedded in a structural silicon carbide matrix. A method of manufacturing a fuel pellet includes the steps of coating a plurality of tristructural-isotropic fuel particles with a coating slurry including silicon carbide powder to form a plurality of coated fuel particles; compacting the plurality of fuel particles; and sintering the compacted plurality of fuel particles to form the fuel pellet.
Claims11
A fuel pellet for a nuclear reactor comprising:
- a silicon carbide matrix;
- a plurality of tristructural-isotropic fuel particles embedded in the silicon carbide matrix;
- and
- two or more burnable poisons;
- wherein:
- the two or more burnable poisons include at least one short-acting burnable poison and at least one long-acting burnable poison;
- the at least one short-acting burnable poison has a larger neutron absorption cross section compared to the at least one long-acting burnable poison;
- and
- the at least one short-acting burnable poison includes gadolinium oxide and the at least one long-acting burnable poison includes erbium oxide.
6 more elements
Dependencies are inferred from the claim text.