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AssigneeHitachi, Ltd.
InventorsRyou Ishibashi, Yoshiyuki Takamori, Xudong Zhang
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A fuel rod and a fuel assembly for light water reactors, in which crack penetration to a fuel cladding tube or an end plug can be prevented, are provided. The fuel rod 10a includes: a cylindrical cladding tube 11 formed of a ceramic base material; a connection 21 formed of the same material as the cladding tube 11; and an end plug 12a having a concave portion 12f of a continuously curved surface shape adapted to house the connection 21. The end plug 12a is formed of the same material as the cladding tube 11. A slanted surface 11a formed at an end portion of the cladding tube 11, and a slanted surface 12d formed at an end portion of the end plug 12a are joined in contact with each other with a metallic joint material 20. The joint is supported by the connection 21.
A fuel rod for light water reactors, comprising:
A fuel assembly that comprises a plurality of fuel rods bundled with a spacer, and that is loadable into a reactor core of a nuclear reactor,
Dependencies are inferred from the claim text.