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    Laminated super conductor oxide with strontium, calcium, copper and at least one of thallium, lead, and bismuth
    2.
    发明授权
    Laminated super conductor oxide with strontium, calcium, copper and at least one of thallium, lead, and bismuth 失效
    层状超导体氧化物与锶，钙，铜和铊，铅和铋中的至少一种

    公开(公告)号：US5502029A

    公开(公告)日：1996-03-26

    申请号：US186545

    申请日：1994-01-26

    申请人： Toshiya Doi ,  Atsuko Soeta ,  Seizi Takeuchi ,  Tomoichi Kamo ,  Shinpei Matsuda

    发明人： Toshiya Doi ,  Atsuko Soeta ,  Seizi Takeuchi ,  Tomoichi Kamo ,  Shinpei Matsuda

    IPC分类号： C01B13/14 ,  C01G1/00 ,  C01G29/00 ,  H01B12/06 ,  H01B13/00 ,  H01L39/24 ,  H01B12/02 ,  C01F11/04 ,  C04B35/453 ,  H01L39/12

    CPC分类号： H01L39/2483 ,  Y10S428/93 ,  Y10S505/782 ,  Y10S505/783 ,  Y10S505/784

    摘要： Superconductors using oxide superconducting materials having pinning centers inside crystal grains are enhanced in transmissible critical current density and allowed to have a high critical current density even in the magnetic field. A superconductor is produced comprising superconducting materials having a high irreversible magnetic field where the c axes of their crystals are oriented in one direction. This can be practically realized by heat-treating a superconducting material having the composition (Tl.sub.1-X1-X2 Pb.sub.X1 Bi.sub.X2)(Sr.sub.1-X3 Ba.sub.X3).sub.2 Ca.sub.2 Cu.sub.3 O.sub.9+X4 together with Bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.8 having a tendency of growing in the form of plate crystal. Various apparatuses capable of working under cooling with liquid nitrogen let alone with liquid helium and having a high superconducting critical current density even in a high magnetic field can be produced.

    摘要翻译： 使用在晶粒内部具有钉扎中心的氧化物超导材料的超导体在传输临界电流密度方面得到增强，并且即使在磁场中也允许具有高的临界电流密度。 制造的超导体包括具有高不可逆磁场的超导材料，其中晶体的c轴在一个方向上取向。 这可以通过将具有组成（Tl1-X1-X2PbX1BiX2）（Sr1-X3BaX3）2Ca2Cu3O9 + X4的超导材料与具有板晶形式的生长趋势的Bi2Sr2CaCu2O8热处理来实际实现。 可以产生能够在液氮冷却下工作的各种装置，即使在高磁场下，也可以使用液氦，甚至具有高的超导临界电流密度。

    Magnetic field generator, a persistent current switch assembly for such a magnetic field generator, and the method of controlling such magnetic field generator
    8.
    发明授权
    Magnetic field generator, a persistent current switch assembly for such a magnetic field generator, and the method of controlling such magnetic field generator 失效
    磁场发生器，用于这种磁场发生器的持续电流开关组件，以及控制这种磁场发生器的方法

    公开(公告)号：US5680085A

    公开(公告)日：1997-10-21

    申请号：US462762

    申请日：1995-06-05

    申请人： Katsuzo Aihara ,  Shinpei Matsuda ,  Tomoichi Kamo

    发明人： Katsuzo Aihara ,  Shinpei Matsuda ,  Tomoichi Kamo

    IPC分类号： G01R33/3815 ,  H01L39/20 ,  H01F1/00

    CPC分类号： H01L39/20 ,  G01R33/3815 ,  Y10S505/882

    摘要： A magnetic field generator has a superconductive coil immersed in a coolant material. When power is supplied to the superconductive coil from a suitable power source, the superconductive coil is energized to generate the magnetic field. The ends of the superconductive coil may then be shorted through a persistent current switch, to maintain the magnetic field without the need for further power. The persistent current switch has a superconductive connection connected across the ends of the superconductive coil and a heater. These components are enclosed in a casing with a gap between these components and the casing. Apertures in the casing permit coolant material to enter the gap. When the heater is energized, it heats the coolant material in the gap until it vaporizes. There is then a significant decrease in the thermal conductivity through the gap and hence the superconductive connection is heated rapidly to its critical temperature. Only low power is needed. When the heater stops being energized, liquid coolant material fills the gap thereby rapidly cooling the superconductive connector to below its critical temperature.

    摘要翻译： 磁场发生器具有浸入冷却剂材料中的超导线圈。 当从合适的电源向超导线圈供电时，超导线圈被通电以产生磁场。 然后，超导线圈的端部可以通过持续电流开关短路，以保持磁场而不需要进一步的功率。 持续电流开关具有连接在超导线圈的端部和加热器两端的超导连接。 这些部件被封装在壳体中，这些部件和壳体之间具有间隙。 套管中的孔允许冷却剂材料进入间隙。 当加热器通电时，它加热间隙中的冷却剂材料，直到其蒸发。 然后，通过间隙导热性显着降低，因此超导连接被迅速加热至其临界温度。 只需要低功耗。 当加热器停止通电时，液体冷却剂材料填充间隙，从而将超导连接器快速冷却到其临界温度以下。