Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
NUCLEAR REACTOR FUEL RODS AND FUEL ASSEMBLY IN WHICH SAME ARE BUNDLED
An object of the invention is to provide a nuclear reactor fuel rod in which a SiC material is used as materials of a fuel cladding tube and an end plug, and air tightness, heat resistance, and corrosion resistance are provided at a bonding portion between the fuel cladding tube and the end plug, and to provide a fuel assembly in which nuclear reactor fuel rods are bundled. According to the invention, a nuclear reactor fuel rod is a fuel rod for a light-water reactor. The nuclear reactor fuel rod includes a fuel cladding tube and an end plug, both of which are formed of a silicon carbide material. A bonding portion between the fuel cladding tube and the end plug is formed by brazing with a predetermined metal bonding material interposed, and/or by diffusion bonding. The predetermined metal bonding material has a solidus temperature of 1200°C or higher. An outer surface of the bonding portion, and a portion of an outer surface of the fuel cladding tube and the end plug, which is adjacent to the outer surface of the bonding portion are covered by bonding-portion coating formed of a predetermined coating metal. The predetermined metal bonding material and the predetermined coating metal have an average linear expansion coefficient which is less than 10 ppm/K.
NUCLEAR REACTOR FUEL RODS AND FUEL ASSEMBLY IN WHICH SAME ARE BUNDLED
An object of the invention is to provide a nuclear reactor fuel rod in which a SiC material is used as materials of a fuel cladding tube and an end plug, and air tightness, heat resistance, and corrosion resistance are provided at a bonding portion between the fuel cladding tube and the end plug, and to provide a fuel assembly in which nuclear reactor fuel rods are bundled. According to the invention, a nuclear reactor fuel rod is a fuel rod for a light-water reactor. The nuclear reactor fuel rod includes a fuel cladding tube and an end plug, both of which are formed of a silicon carbide material. A bonding portion between the fuel cladding tube and the end plug is formed by brazing with a predetermined metal bonding material interposed, and/or by diffusion bonding. The predetermined metal bonding material has a solidus temperature of 1200°C or higher. An outer surface of the bonding portion, and a portion of an outer surface of the fuel cladding tube and the end plug, which is adjacent to the outer surface of the bonding portion are covered by bonding-portion coating formed of a predetermined coating metal. The predetermined metal bonding material and the predetermined coating metal have an average linear expansion coefficient which is less than 10 ppm/K.
NUCLEAR REACTOR FUEL RODS AND FUEL ASSEMBLY IN WHICH SAME ARE BUNDLED
BRENNSTÄBE EINES KERNREAKTORS UND BRENNSTABBÜNDEL MIT DARIN GEBÜNDELTEN BRENNSTÄBEN EINES KERNREAKTORS
BARRES DE COMBUSTIBLE DE RÉACTEUR NUCLÉAIRE GROUPÉES DANS UN ENSEMBLE COMBUSTIBLE ET LEDIT ENSEMBLE COMBUSTIBLE
ISHIBASHI RYOU (Autor:in) / AOTA KINYA (Autor:in) / ZHANG XUDONG (Autor:in) / KITA HIDEKI (Autor:in) / YAMASHITA SEIJI (Autor:in)
29.05.2019
Patent
Elektronische Ressource
Englisch
Nuclear reactor fuel rod and fuel assembly having bundled same
| Europäisches Patentamt | 2020
Inspection of domestic nuclear fuel rods using neutron radiography at the Tehran Research Reactor
| British Library Online Contents | 2016
Surface controlled mechanism of water boiling for nuclear reactor fuel assembly
| BASE | 2024
Finite element simulation of Pellet-Cladding Interaction (PCI) in nuclear fuel rods
| British Library Online Contents | 2009
METHOD OF PRODUCING NUCLEAR FUEL PELLET, AND FUEL ASSEMBLY
| Europäisches Patentamt | 2023