Method of preparing 2223 phase (Bi,Pb)-Sr-Ca-Cu-O superconducting films
    13.
    发明授权
    Method of preparing 2223 phase (Bi,Pb)-Sr-Ca-Cu-O superconducting films 失效
    制备2223相(Bi,Pb)-Sr-Ca-Cu-O超导膜的方法

    公开(公告)号:US5330966A

    公开(公告)日:1994-07-19

    申请号:US905994

    申请日:1992-06-26

    IPC分类号: H01L39/24 B05D5/12 C23C16/00

    摘要: An oxide superconducting layer is formed on a base material of silver, whose single side is coated with MgO, or single-crystalline MgO for depositing a Bi.sub.2 Sr.sub.2 Ca.sub.2 Cu.sub.3 phase in a crystallographically oriented state by sputtering, CVD or laser ablation. Metal lead or lead oxide is then laid thereon by sputtering to obtain a two-layer structure, and the two-layer structure is heat treated in the atmospheric air. Thus, a bismuth oxide superconducting film, which is excellent in crystal orientation as well as denseness and thereby having high critical current density, is formed on the base material.

    摘要翻译: 在银的基体材料上形成氧化物超导层,其单面涂覆有MgO,或者通过溅射,CVD或激光烧蚀在晶体取向状态下沉积Bi2Sr2Ca2Cu3相的单晶MgO。 然后通过溅射将金属铅或氧化铅放置在其上以获得双层结构,并且在大气中对该二层结构进行热处理。 因此,在基材上形成结晶取向性和密度优异,从而具有高临界电流密度的氧化铋超导膜。

    Oxide superconductive wire, method of manufacturing the same and the
products using the same
    14.
    发明授权
    Oxide superconductive wire, method of manufacturing the same and the products using the same 失效
    氧化物超导线,其制造方法和使用其的产品

    公开(公告)号:US5312802A

    公开(公告)日:1994-05-17

    申请号:US613868

    申请日:1990-11-29

    摘要: An oxide superconductive wire is provided by, for example, forming an oxide superconductive layer on a tape-type flexible base. A preliminary compressive strain is applied to the oxide superconductive layer in the longitudinal direction. The remaining strain can be provided by using a base having thermal expansion coefficient larger than that of the oxide superconductive layer and by cooling the same after heat treatment, due to contraction of the base. Since the preliminary compressive strain is applied to the oxide superconductive layer, degradation of superconductivity of the oxide superconductive layer can be suppressed even if the oxide superconductive wire is bent in any direction, compared with the wire without such strain. Therefore, the oxide superconductive wire can be coiled, for example, without much degrading the superconductivity.

    摘要翻译: PCT No.PCT / JP90 / 00422 Sec。 371日期1990年11月29日第 102(e)1990年11月29日PCT PCT 1990年3月29日PCT公布。 WO90 / 12408 PCT出版物 日期1990年10月18日。氧化物超导线例如通过在带状柔性基底上形成氧化物超导层而提供。 在纵向上对氧化物超导层施加预压缩应变。 可以通过使用具有大于氧化物超导层的热膨胀系数的碱的基底,并且由于基底的收缩而在热处理后对其进行冷却来提供剩余的应变。 由于将预压缩应变施加到氧化物超导层上,与没有这种应变的线相比,即使氧化物超导线在任何方向上弯曲,也可以抑制氧化物超导层的超导性的劣化。 因此,氧化物超导线例如可以卷绕,而不会使超导性降低。