Invention Grant
- Patent Title: Metal laminated substrate for use as an oxide superconducting wire material, and manufacturing method therefor
- Patent Title (中): 用作氧化物超导线材的金属层压基板及其制造方法
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Application No.: US13383957Application Date: 2010-07-08
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Publication No.: US08815777B2Publication Date: 2014-08-26
- Inventor: Hironao Okayama , Teppei Kurokawa , Kouji Nanbu , Yoshihiko Isobe , Takashi Koshiro , Akira Kaneko , Hajime Ota , Kotaro Ohki , Takashi Yamaguchi , Kazuya Ohmastu
- Applicant: Hironao Okayama , Teppei Kurokawa , Kouji Nanbu , Yoshihiko Isobe , Takashi Koshiro , Akira Kaneko , Hajime Ota , Kotaro Ohki , Takashi Yamaguchi , Kazuya Ohmastu
- Applicant Address: JP Tokyo JP Osaka
- Assignee: Toyo Kohan Co., Ltd.,Sumitomo Electric Industries, Ltd.
- Current Assignee: Toyo Kohan Co., Ltd.,Sumitomo Electric Industries, Ltd.
- Current Assignee Address: JP Tokyo JP Osaka
- Agency: Browdy and Neimark, PLLC
- Priority: JP2009-169531 20090717
- International Application: PCT/JP2010/004460 WO 20100708
- International Announcement: WO2011/007527 WO 20110120
- Main IPC: H01L39/24
- IPC: H01L39/24

Abstract:
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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