Coating a nuclear fuel with a burnable poison

Details Coating a nuclear fuel with a burnable poison Coating a nuclear fuel with a burnable poison

1983-08-26

1986-05-06

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Encased with nonfuel component

376414, 376421, 427 6, G21C 300

Patent

active

045870888

ABSTRACT:
A method for coating a nuclear fuel with a burnable poison and a burnable poison coated nuclear fuel made by the method. The nuclear fuel is surface cleaned, and then a burnable poison layer is sputtered thereon. A sputtering deposition rate is picked that preferably will heat the nuclear fuel surface between 200.degree. C. and 600.degree. C. For deposition rates that result in heating the nuclear fuel surface to less than 200.degree. C., external heat is applied to heat the nuclear fuel surface between 200.degree. C. and 600.degree. C. To make the burnable poison layer less hygroscopic, an overcoat layer of a hydrophobic material is sputtered on the burnable poison layer.

REFERENCES:
patent: 3427222 (1969-02-01), Biancheria
patent: 4209375 (1980-06-01), Gates
patent: 4279700 (1981-07-01), Boyle
Lyman, T.; Metals Handbook, 8th Ed., vol. 2, American Society for Metals, Metals Park, Ohio.

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