发明授权
US08815777B2 Metal laminated substrate for use as an oxide superconducting wire material, and manufacturing method therefor 有权
用作氧化物超导线材的金属层压基板及其制造方法

Metal laminated substrate for use as an oxide superconducting wire material, and manufacturing method therefor
摘要:
A metal laminated substrate for an oxide superconducting wire is produced by removing, in a state where a copper foil to which rolling is applied at a draft of 90% or more is held at a temperature below a recrystallization temperature, an absorbed material on a surface of the copper foil by applying sputter etching to the surface of the copper foil; removing an absorbed material on a surface of a nonmagnetic metal sheet by applying sputter etching to the surface of the nonmagnetic metal sheet; bonding the copper foil and the metal sheet to each other by reduction rolls at an applied pressure of 300 MPa to 1500 MPa; orienting crystals of the copper by heating a laminated body obtained by bonding at a crystal orientation temperature of copper or above; and forming a protective layer on a copper-side surface of the laminated body by coating.
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