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    PROCESS OF PRODUCING SUPERCONDUCTING ALLOYS
    4.
    发明授权
    PROCESS OF PRODUCING SUPERCONDUCTING ALLOYS 失效
    用于生产SUPRA导电合金

    公开(公告)号：EP0595877B1

    公开(公告)日：1998-05-13

    申请号：EP92915382.3

    申请日：1992-07-09

    申请人： COMPOSITE MATERIALS TECHNOLOGY, Inc.

    发明人： WONG, James

    IPC分类号： C22F1/18 ,  H01L39/12 ,  H01L39/24 ,  H01B12/02

    CPC分类号： B21C23/22 ,  B21C33/002 ,  B21C33/004 ,  B21C37/042 ,  B21C37/045 ,  C22F1/18 ,  C22F1/183 ,  C22F1/186 ,  H01J7/183 ,  H01L39/2406 ,  H01L39/2409 ,  Y10S505/918 ,  Y10S505/921 ,  Y10T29/49014

    摘要： A type II superconducting alloy which is superconducting at a predetermined high magnetic field is prepared by creating a composite having a periodic arrangement of at least two transition metals so as to provide numerous interfaces between the different transition metals including niobium, titanium, zirconium, vanadium, hafnium, and tantalum, and alloys thereof. The combination of transition metals is such that one of the metals will serve as a second phase when the layers are subjected to temperatures which would produce a two-phase equilibrium state from a solid solution alloy of the transition metals. The composite is mechanically reduced and heated to cause interdiffusion of the transition metals to form ductile superconducting alloy zones at the interfaces of the transition metals. Sufficient heat treatment is provided in the region where two phases exist in the phase diagram to form two phases, one phase being the desired superconducting Type II alloy and the other phase being the non-superconducting normal metal or alloy. The temperature of heat treatment is limited to the two-phase region. Thereafter, the composite is mechanically reduced so that the two zones are each less than about 1,000 nm in thickness.

    Method of manufacturing Nb3Sn superconducting wire
    6.
    发明公开
    Method of manufacturing Nb3Sn superconducting wire 失效
    制造NB3SN超导线的方法

    公开(公告)号：EP0498413A3

    公开(公告)日：1993-01-07

    申请号：EP92101969.1

    申请日：1992-02-06

    申请人： THE FURUKAWA ELECTRIC CO., LTD.

    发明人： Suzuki, Takuya, c/o The Furukawa Elec. Co., Ltd. ,  Ogawa, Kinya c/o The Furukawa Elec. Co., Ltd. ,  Endoh, Sakaru c/o The Furukawa Elec. Co., Ltd. ,  Susai, Kyota, c/o The Furukawa Elec. Co., Ltd.

    IPC分类号： H01L39/24 ,  H01L39/14

    CPC分类号： H01L39/2409 ,  Y10S505/921

    摘要： A method of manufacturing an Nb₃Sn superconducting wire includes the steps of composing a desired number of rods, constituted by a material selected from the group consisting of Nb and an Nb alloy, in a Cu-Sn-based alloy matrix containing 15.1 to 24.6 wt % of Sn, thus forming a composite billet, subjecting the composite billet to hot working, subjecting the composite billet to cold or warm working to reduce a diameter and annealing repeatedly to divide an intermetallic compound phase in the Cu-Sn-based alloy into small pieces, thus obtaining a composite wire, and subjecting the composite wire to predetermined heating to diffuse Sn in Nb. A method of manufacturing an Nb₃Sn superconducting wire includes the steps of inserting a multiple of composite wires in a pipe, constituted by a material selected from the group consisting of Cu and a Cu alloy, and composing the multiple of composite wires to form a multi-core composite billet, drawing the multi-core composite billet to obtain a multi-core composite wire, and subjecting the multi-core composite wire to predetermined heating to diffuse Sn in Nb.

    PROCESS OF PRODUCING SUPERCONDUCTING ALLOYS
    8.
    发明公开
    PROCESS OF PRODUCING SUPERCONDUCTING ALLOYS 失效
    生产超导合金的工艺

    公开(公告)号：EP0595877A4

    公开(公告)日：1997-05-07

    申请号：EP92915382

    申请日：1992-07-09

    申请人： COMPOSITE MATERIALS TECH

    发明人： WONG JAMES

    IPC分类号： C22F1/00 ,  B21C23/22 ,  B21C37/04 ,  C22F1/18 ,  H01B12/10 ,  H01B13/00 ,  H01J7/18 ,  H01L39/00 ,  H01L39/24 ,  H01B12/02 ,  H01L39/12

    CPC分类号： B21C23/22 ,  B21C33/002 ,  B21C33/004 ,  B21C37/042 ,  B21C37/045 ,  C22F1/18 ,  C22F1/183 ,  C22F1/186 ,  H01J7/183 ,  H01L39/2406 ,  H01L39/2409 ,  Y10S505/918 ,  Y10S505/921 ,  Y10T29/49014

    摘要： A type II superconducting alloy which is superconducting at a predetermined high magnetic field is prepared by creating a composite having a periodic arrangement of at least two transition metals so as to provide numerous interfaces between the different transition metals including niobium, titanium, zirconium, vanadium, hafnium, and tantalum, and alloys thereof. The combination of transition metals is such that one of the metals will serve as a second phase when the layers are subjected to temperatures which would produce a two-phase equilibrium state from a solid solution alloy of the transition metals. The composite is mechanically reduced and heated to cause interdiffusion of the transition metals to form ductile superconducting alloy zones at the interfaces of the transition metals. Sufficient heat treatment is provided in the region where two phases exist in the phase diagram to form two phases, one phase being the desired superconducting Type II alloy and the other phase being the non-superconducting normal metal or alloy. The temperature of heat treatment is limited to the two-phase region. Thereafter, the composite is mechanically reduced so that the two zones are each less than about 1,000 nm in thickness.