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    • 2. 发明授权
    • Oxide superconducting wire and method of manufacturing the same
    • 氧化物超导线及其制造方法
    • US06316391B1
    • 2001-11-13
    • US09536043
    • 2000-03-27
    • Toshiya DoiTakesi OzawaToyotaka YuasaKazutoshi Higashiyama
    • Toshiya DoiTakesi OzawaToyotaka YuasaKazutoshi Higashiyama
    • H01B1200
    • H01L39/2454H01F6/06H01L39/143
    • The present invention provides superconductors capable of being used at temperatures to which the superconductor can be cooled in liquid nitrogen and of carrying current in a high critical current density in a magnetic field, and superconducting apparatuses employing the superconductors and more advantageous in costs than the conventional superconducting apparatuses. A superconducting wire is formed by combining a metallic body of a cubic aggregate structure and an oxide superconducting substance. The present invention provides superconductors, superconducting wires, superconducting magnets and applied superconducting apparatuses having a high superconducting critical current density. The applied super conducting apparatuses employing the superconductors or the superconducting wires in accordance with the present invention are able to operate when cooled in liquid nitrogen-and can be manufactured at costs lower than those of the conventional superconducting apparatuses.
    • 本发明提供了能够在超导体可以在液氮中冷却并在磁场中以高临界电流密度承载电流的温度下使用的超导体,以及使用超导体的超导装置,并且比常规的成本更有利 超导装置。 通过组合立方体聚集体结构的金属体和氧化物超导物质来形成超导线。 本发明提供具有高超导临界电流密度的超导体,超导线,超导磁体和应用的超导装置。 使用根据本发明的超导体或超导线的应用的超导传导装置能够在液氮中冷却时操作,并且可以以比常规超导装置的成本低的成本制造。
    • 9. 发明授权
    • Superconducting wire and method of producing the same
    • 超导线及其制造方法
    • US6103669A
    • 2000-08-15
    • US448137
    • 1995-05-23
    • Akira OkayamaMichiya OkadaTadaoki MorimotoToshimi MatsumotoYoshimi YanaiHiroshi SatohToshiya DoiKazuhide TanakaTakahiko Kato
    • Akira OkayamaMichiya OkadaTadaoki MorimotoToshimi MatsumotoYoshimi YanaiHiroshi SatohToshiya DoiKazuhide TanakaTakahiko Kato
    • H01B12/04H01B13/00H01L39/14H01L39/24
    • H01L39/143H01L39/248Y10T29/49014
    • This invention provides an oxide-type superconducting flat wire having a critical current density of at least 1,000 A/cm.sup.2, which comprises a Y--Ba--Cu oxide layer having a superconducting property and a silver layer surrounding the oxide layer and has so flat a cross section vertical to the longitudinal direction of the wire that the upper and lower lines between the oxide layer and the silver layers appearing on the cross section having a zone over they are parallel to each other, the thickness of the oxide layer being cold rolled in the range of 0.35 to 0.75 based on the whole thickness of the wire, the whole thickness being 0.2 mm or less, and the metal layer being deformable to follow the shrink deformation of the oxide layer when heat treated to be sintered, but rigid when used. This flat wire is produced by filling a silver-made tube with a Y--Ba--Cu oxide powder having a superconducting property, drawing the tube into a rod wire having a round cross section, then cold rolling the rod wire in the flat wire so that (t.sub.i -t)/t.sub.i .times.100 is equal to or greater than 90%, wherein t.sub.i is the whole thickness of the cross section of the rod wire before the cold rolling and t is the whole thickness of the cold-rolled flat wire, and then heat treating the flat wire to sinter the superconducting oxide.
    • 本发明提供了具有至少1000A / cm 2的临界电流密度的氧化物型超导扁线,其包括具有超导特性的Y-Ba-Cu氧化物层和围绕氧化物层的银层,并且具有如此平坦的 横截面垂直于导线的纵向方向,在它们之间具有区域的横截面上出现的氧化物层和银层之间的上下线之间彼此平行,氧化层的厚度被冷轧 基于整个线材的0.35至0.75的范围,整个厚度为0.2mm或更小,并且当热处理烧结时,金属层可变形以跟随氧化物层的收缩变形,但是当使用时是刚性的 。 该扁线通过用具有超导特性的Y-Ba-Cu氧化物粉末填充银制管而制成,将管拉成具有圆形横截面的棒丝,然后将扁丝中的棒丝冷轧 (ti-t)/ tix100等于或大于90%,其中ti是冷轧前棒丝的横截面的整个厚度,t是冷轧扁丝的整个厚度, 然后对扁线进行热处理以烧结超导氧化物。