Enhanced high temperature coated superconductors joined at a cap layer
    2.
    发明授权
    Enhanced high temperature coated superconductors joined at a cap layer 有权
    在盖层上连接的增强型高温涂层超导体

    公开(公告)号:US06828507B1

    公开(公告)日:2004-12-07

    申请号:US09617518

    申请日:2000-07-14

    IPC分类号: H01B1200

    摘要: This invention relates to a practical superconducting conductor based upon biaxially textured high temperature superconducting coatings. In particular, methods for producing flexible and bend strain-resistant articles and articles produced in accordance therewith are described which provide improved current sharing, lower hysteretic losses under alternating current conditions, enhanced electrical and thermal stability and improved mechanical properties between otherwise isolated films in a coated high temperature superconducting (HTS) wire. Multilayered materials including operational material which is sensitive to bend strain can be constructed, in which the bend strain in the region in which such operational material is located is minimized. The invention also provides a means for splicing coated tape segments and for termination of coated tape stack ups or conductor elements. In one embodiment, a multi-layer high temperature superconductor is provided and includes first and second high temperature superconductor coated elements. Each element includes a substrate, at least one buffer deposited on the substrate, a high temperature superconductor layer, and a cap layer. The first and second high temperature superconductor coated elements are joined at the first and second cap layers.

    摘要翻译: 本发明涉及一种基于双轴织构的高温超导涂层的实用超导导体。 特别地,描述了制造柔性和弯曲耐应变制品的方法和根据本发明生产的制品,其提供了改善的电流共享,在交流电流条件下的较低的滞后损耗,增强的电和热稳定性以及在其中隔离的膜中的改进的机械性能 涂覆高温超导(HTS)线。 可以构造包括对弯曲应变敏感的操作材料的多层材料,其中使得这种操作材料所在的区域中的弯曲应变最小化。 本发明还提供了用于拼接涂覆的带段和用于终止涂覆的带堆叠或导体元件的装置。在一个实施例中,提供了多层高温超导体,并且包括第一和第二高温超导体涂覆元件。 每个元件包括衬底,沉积在衬底上的至少一个缓冲器,高温超导体层和帽层。 第一和第二高温超导体涂覆元件在第一和第二盖层处接合。

    Enhanced high temperature coated superconductors
    3.
    发明授权
    Enhanced high temperature coated superconductors 有权
    增强型高温涂层超导体

    公开(公告)号:US06765151B2

    公开(公告)日:2004-07-20

    申请号:US10154566

    申请日:2002-05-24

    IPC分类号: H01B1200

    摘要: This invention relates to a practical superconducting conductor based upon biaxially textured high temperature superconducting coatings. In particular, methods for producing flexible and bend strain-resistant articles and articles produced in accordance therewith are described which provide improved current sharing, lower hysteretic losses under alternating current conditions, enhanced electrical and thermal stability and improved mechanical properties between otherwise isolated films in a coated high temperature superconducting (HTS) wire. Multilayered materials including operational material which is sensitive to bend strain can be constructed, in which the bend strain in the region in which such operational material is located is minimized. The invention also provides a means for splicing coated tape segments and for termination of coated tape stack ups or conductor elements. In one embodiment, a multi-layer high temperature superconductor is provided and includes first and second high temperature superconductor coated elements. Each element includes a substrate, at least one buffer deposited on the substrate, a high temperature superconductor layer, and a cap layer. The first and second high temperature superconductor coated elements are joined at the first and second cap layers.

    摘要翻译: 本发明涉及一种基于双轴织构的高温超导涂层的实用超导导体。 特别地,描述了用于生产柔性和弯曲耐应变制品的方法以及根据本发明生产的制品,其提供了改进的电流共享,在交流电流条件下的较低的滞后损耗,增强的电和热稳定性以及在其中隔离的膜中的改善的机械性能 涂覆高温超导(HTS)线。 可以构造包括对弯曲应变敏感的操作材料的多层材料,其中使得这种操作材料所在的区域中的弯曲应变最小化。 本发明还提供了用于拼接涂覆的带段和用于终止涂覆的带堆叠或导体元件的装置。在一个实施例中,提供了多层高温超导体,并且包括第一和第二高温超导体涂覆元件。 每个元件包括衬底,沉积在衬底上的至少一个缓冲器,高温超导体层和帽层。 第一和第二高温超导体涂覆元件在第一和第二盖层处接合。

    High performance (Bi,Pb)2Sr2Ca2Cu3Oy composites
    5.
    发明授权
    High performance (Bi,Pb)2Sr2Ca2Cu3Oy composites 失效
    高性能(Bi,Pb)2Sr2Ca2Cu3Oy复合材料

    公开(公告)号:US06188920B1

    公开(公告)日:2001-02-13

    申请号:US09137733

    申请日:1998-08-21

    IPC分类号: H01B1200

    摘要: The present invention provides a (Bi,Pb)SCCO-2223 oxide superconductor composite which exhibits improved critical current density and critical current density retention in the presence of magnetic fields. Retention of critical current density in 0.1 T fields (77 K, ⊥ ab plane) of greater than 35% is disclosed. Significant improvements in oxide superconductor wire current carrying capacity in a magnetic field are obtained by subjecting the oxide superconductor composite to a post-processing heat treatment which reduces the amount of lead in the (Bi,Pb)SCCO-2223 phase and forms a lead-rich non-superconducting phase. The heat treatment is carried out under conditions which localize the lead-rich phase at high energy sites in the composite.

    摘要翻译: 本发明提供了一种(Bi,Pb)SCCO-2223氧化物超导体复合材料,其在磁场存在下表现出改善的临界电流密度和临界电流密度保持。 公开了0.1T场(77K,⊥ab平面)中临界电流密度的保持率大于35%。 通过对氧化物超导体复合物进行后处理热处理,可以减少(Bi,Pb)SCCO-2223相中的铅的量,并形成铅 - 丰富的非超导相。 热处理在复合材料中在高能量位置使富铅相定位的条件下进行。