SUPERCONDUCTING WIRES AND METHODS OF MAKING THEREOF
    9.
    发明公开
    SUPERCONDUCTING WIRES AND METHODS OF MAKING THEREOF 审中-公开
    VERFAHREN ZUR HERSTELLUNG DAVON的SUPRALEITENDEDRÄHTE

    公开(公告)号:EP3107879A2

    公开(公告)日:2016-12-28

    申请号:EP15792961.3

    申请日:2015-02-18

    IPC分类号: C04B35/45

    摘要: Disclosed herein are superconducting wires. The superconducting wires can comprise a metallic matrix and at least one continuous subelement embedded in the matrix. Each subelement can comprise a non-superconducting core, a superconducting layer coaxially disposed around the non-superconducting core, and a barrier layer coaxially disposed around the super-conducting layer. The superconducting layer can comprise a plurality of Nb3Sn grains stabilized by metal oxide particulates disposed therein. The Nb3Sn grains can have an average grain size of from 5 nm to 90 nm (for example, from 15 nm to 30 nm). The superconducting wire can have a high-field critical current density (Jc) of at least 5,000 A/mm2 at a temperature of 4.2 K in a magnetic field of 12 T. Also described are superconducting 4 wire precursors that can be heat treated to prepare super-conducting wires, as well as methods of making super-conducting wires.

    摘要翻译: 这里公开了超导线。 超导线可以包括金属基体和嵌入基质中的至少一个连续子元件。 每个子元件可以包括非超导芯,同轴地设置在非超导芯周围的超导层,以及围绕超导层同轴设置的阻挡层。 超导层可以包括由设置在其中的金属氧化物颗粒稳定的多个Nb 3 Sn颗粒。 Nb 3 Sn粒子的平均粒径可以为5nm〜90nm(例如15nm〜30nm)。 在12T的磁场中,超导线可以在4.2K的温度下具有至少5,000A / mm 2的高场临界电流密度(Jc)。还描述了可以热处理以制备的超导4线前体 超导线,以及制造超导线的方法。