Induced nuclear reactions: processes – systems – and elements – Handling of fission reactor component structure within... – Fuel component
Patent
1997-08-08
2000-01-11
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Handling of fission reactor component structure within...
Fuel component
376451, 376457, 420422, 148407, 428660, 22826271, 219137WM, G21C 2102
Patent
active
060144181
ABSTRACT:
A fuel rod for a light water reactor comprises a cladding tube which comprises a zirconium alloy having a composition including 0.6 to 2.0% by weight of Nb, 0.5 to 1.5% by weight of Sn, 0.05 to 0.3% by weight of Fe, and the balance being Zr and incidental impurities; uranium oxide fuel pellets packed in the cladding tube; and end plugs comprising a zirconium alloy and closing both ends of the cladding tube. The cladding tube is sealed by TIG welding with the end plugs. Grain boundaries in each heat affected zone of the cladding tube, which are adjacent to a bead formed by TIG welding, have structural compositions including 4 to 30% by weight of Nb, and 0.9 to 20% by weight of Fe.
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English Abstract of JP 33828, (Oct. 1973).
Isobe Takeshi
Mae Yoshiharu
Sando Akio
Suda Yoshitaka
Takahashi Toshimichi
Mitsubishi Heavy Industries, Ltd
Mitsubishi Materials Corporation
Mitsubishi Nuclear Fuel Co. Ltd.
Wasil Daniel D.
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