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    PROCESS OF PRODUCING SUPERCONDUCTING ALLOYS
    4.
    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.

    PRODUCTION OF ELECTROLYTIC CAPACITORS AND SUPERCONDUCTORS
    6.
    发明公开
    PRODUCTION OF ELECTROLYTIC CAPACITORS AND SUPERCONDUCTORS 有权
    电解电容器的生产UNDSUPRALEITERN

    公开(公告)号：EP1573828A4

    公开(公告)日：2006-05-10

    申请号：EP03814051

    申请日：2003-12-16

    申请人： COMPOSITE MATERIALS TECH

    发明人： WONG JAMES

    IPC分类号： B21C37/04 ,  H01G9/042 ,  H01L39/24 ,  H02G15/34 ,  B23B15/00 ,  B23P17/00 ,  H01B12/00 ,  H01G9/145

    CPC分类号： H01G9/042 ,  B21C37/047 ,  H01L39/2409 ,  H02G15/34 ,  Y02E40/648

    摘要： A superconducting material useful for forming electrolytic devices is made by establishing multiple niobium or tantalum components in a primary billet of a ductile material; working the primary billet through a series of reduction steps to form the niobium or tantalum components into elongated elements; cutting and restacking the resulting elongated elements with a porous confining layer to form a secondary billet, working the secondary billet through a series of reduction steps including twisting and final rolling to thin ribbon cross-sections with greater than 5:1 Aspect Ratios; cutting the resulting elongated billet into sections; and leaching the core and sheath at least in part.

    SUPERCONDUCTOR AND PROCESS OF MANUFACTURE.
    9.
    发明公开
    SUPERCONDUCTOR AND PROCESS OF MANUFACTURE. 失效
    超导体和方法。

    公开(公告)号：EP0582565A4

    公开(公告)日：1994-11-09

    申请号：EP91913713

    申请日：1991-05-03

    申请人： COMPOSITE MATERIALS TECH

    发明人： WONG JAMES ,  RUDZIAK MARK M

    IPC分类号： H01B12/10 ,  H01B12/02 ,  H01B13/00 ,  H01L39/24

    CPC分类号： H01L39/2406

    摘要： A superconductor is produced by the steps of combining a plurality of layers of metal sheets to form a composite structure. The sheets are pure transition metals-niobium, titanium, zirconium, or vanadium, or alloys thereof alternate sheets being formed of different transition metals or alloys. The resulting composite structure is mechanically reduced sufficiently so that each transition metal sheet is less than 1000 ANGSTROM thick. In the course of reduction, the composite is subjected to sufficient temperatures for sufficient times such that the transition metal layers are at least partially reacted to form a ductile superconducting material between the transition metal layers. Some of the transition metal layers remain sufficiently unreacted that they remain non superconducting. These unreacted layers afford efficient flux pinning within the composite when the layers are reduced to the less than 1000 ANGSTROM final size. In other embodiments, powders and filaments can be used instead of initial layers. Binary or ternary superconducting alloys can be formed.