초록 ▼

Zirconium-based corrosion resistant alloys for use primarily as a cladding material for fuel rods in a boiling water nuclear reactor consist essentially of by weight percent about 0.5 to 2.0 percent thin, about 0.24 to 0.40 percent of a solute composed of copper, nickel and iron, wherein the copper

Zirconium-based corrosion resistant alloys for use primarily as a cladding material for fuel rods in a boiling water nuclear reactor consist essentially of by weight percent about 0.5 to 2.0 percent thin, about 0.24 to 0.40 percent of a solute composed of copper, nickel and iron, wherein the copper is at least 0.05 percent, and the balance zirconium. Nuclear fuel elements for use in the core of a nuclear reactor have improved corrosion resistant cladding made from these zirconium alloys or composite claddings have a surface layer of the corrosion resistant zirconium alloys metallurgically bonded to the outside surface of a Zircaloy alloy tube. The claddings may contain an inner barrier layer of moderate purity zirconium metallurigcally bonded on the inside surface of the cladding to procide protection from fission products and gaseous impurities generated by the enclosed nuclear fuel.

대표청구항 ▼

A corrosion resistant nuclear fuel element, comprising; an elongated cladding container formed from a zirconium alloy tube consisting essentially of by weight percent 0.5 to 2.0 percent tin, 0.24 to 0.40 percent of a solute composed of copper, nickel and iron, and the balance zirconium; and a centra

A corrosion resistant nuclear fuel element, comprising; an elongated cladding container formed from a zirconium alloy tube consisting essentially of by weight percent 0.5 to 2.0 percent tin, 0.24 to 0.40 percent of a solute composed of copper, nickel and iron, and the balance zirconium; and a central core of a body of nuclear fuel material selected from the group consisting of compounds of uranium, plutonium, thorium and mixtures thereof disposed in and partially filling the container so as to leave a gap between the container and the core and an internal cavity at one end of the container an enclosure integrally secured and sealed at each end of the container and a nuclear fuel material retaining means positioned in the cavity.