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4. Uranium nitride fuel fabrication for SP-100 reactors

Author

Mason, Richard E, Chidester, Kenneth M, Hoth, Carl W, and Matthews, Bruce R

Subjects
Engineering (General)
Abstract

Fuel pins of uranium mononitride clad in Nb-1 percent Zr were fabricated for irradiation tests in EBR-II. Laboratory scale process parameters to synthesize UN powders and fabricate UN pellets were developed. Uranium mononitride was prepared by converting UO2 to UN. Fuel pellets were prepared by communition of UN briquettes, uniaxial pressing, and high temperature sintering. Techniques for machining, cleaning, and welding Nb-1 percent Zr cladding components were developed. End caps were electron beam welded to the tubing. Helium back-fill holes were sealed with a laser weld.

Published
1987

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