PRODUCTION OF ELECTROLYTIC CAPACITORS AND SUPERCONDUCTORS
    5.
    发明公开
    PRODUCTION OF ELECTROLYTIC CAPACITORS AND SUPERCONDUCTORS 有权
    生产电解电容器和超导体

    公开(公告)号:EP1573828A1

    公开(公告)日:2005-09-14

    申请号:EP03814051.3

    申请日:2003-12-16

    发明人: WONG, James

    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.

    PROCESS OF PRODUCING SUPERCONDUCTING ALLOYS
    7.
    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

    发明人: WONG, James

    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.

    CONSTRAINED FILAMENT NIOBIUM-BASED SUPERCONDUCTOR COMPOSITE AND PROCESS OF FABRICATION
    9.
    发明公开
    CONSTRAINED FILAMENT NIOBIUM-BASED SUPERCONDUCTOR COMPOSITE AND PROCESS OF FABRICATION 审中-公开
    复合超导体基于链接铌纤维及其制备方法

    公开(公告)号:EP1177326A2

    公开(公告)日:2002-02-06

    申请号:EP00941112.5

    申请日:2000-04-18

    发明人: WONG, James

    IPC分类号: C23C2/00

    摘要: A niobium-based superconductor is manufactured by establishing multiple niobium components in a billet of a ductile metal, working the composite billet through a series of reduction steps to form the niobium components into elongated elements, each niobium element having a thickness on the order of 1 to 25 microns, surrounding the billet prior to the last reduction step with a porous confining layer of an acid resistant metal, immersing the confined billet in an acid to remove the ductile metal from between the niobium elements while the niobium elements remain confined by said porous layer, exposing the confined mass of niobium elements to a material capable of reacting with Nb to form a superconductor.