초록 ▼

A hydride blister-resistant nuclear fuel rod cladding has a tubular cladding formed from a zirconium-based alloy which has a thin nickel base film, of a thickness of about 0.01 to 5 microns distributed over between 1-40 percent of the area of the internal surface of the tubular cladding. The dispers

A hydride blister-resistant nuclear fuel rod cladding has a tubular cladding formed from a zirconium-based alloy which has a thin nickel base film, of a thickness of about 0.01 to 5 microns distributed over between 1-40 percent of the area of the internal surface of the tubular cladding. The dispersed nickel base film provides multiple sites for hydride transport from the interior of the nuclear fuel rod and prevents localized hydride transport and resulting hydride blistering.

대표청구항 ▼

A nuclear fuel rod comprising: a metallic tubular cladding formed from a zirconium alloy, containing a nuclear fuel therein, and having end sealing means thereon to hermetically seal said nuclear fuel within said metallic tubular cladding; a discontinuous thin film, about 0.01 to about 5 microns thi

A nuclear fuel rod comprising: a metallic tubular cladding formed from a zirconium alloy, containing a nuclear fuel therein, and having end sealing means thereon to hermetically seal said nuclear fuel within said metallic tubular cladding; a discontinuous thin film, about 0.01 to about 5 microns thick, of material, selected from the group consisting of nickel metal and nickel base-zirconium alloys, on the internal surface of said metallic tubular cladding to provide a nickel metal film over 1-40 percent of the area of said internal surface; and whereby multiple sites of said thin film are provided for hydride transport from the interior of the nuclear fuel rod, so as to prevent localized hydride transport and resulting hydride blistering, and cladding failures resulting therefrom.