公开(公告)号：US20180158577A1

公开(公告)日：2018-06-07

申请号：US15890094

申请日：2018-02-06

申请人： Ohio State Innovation Foundation ,  HYPER TECH RESEARCH, INC.

发明人： Xingchen XU ,  Michael D. SUMPTION ,  Xuan PENG

IPC分类号： H01B12/10 ,  H01L39/24 ,  H01L39/14 ,  H01F6/06 ,  H01B13/00 ,  B22F5/12 ,  C22F1/18 ,  C22C1/04 ,  B22F7/04 ,  C22C32/00

CPC分类号： H01B12/10 ,  B22F5/12 ,  B22F7/04 ,  C22C1/0491 ,  C22C32/0031 ,  C22F1/18 ,  H01B13/0016 ,  H01F6/06 ,  H01L39/14 ,  H01L39/2409

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 superconducting 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 wire precursors that can be heat treated to prepare superconducting wires, as well as methods of making superconducting wires.

公开(公告)号：US20170062099A1

公开(公告)日：2017-03-02

申请号：US15119831

申请日：2015-02-18

申请人： THE OHIO STATE UNIVERSITY ,  HYPER TECH RESEARCH, INC.

发明人： Xingchen XU ,  Michael D. SUMPTION ,  Xuan PENG

IPC分类号： H01B12/10 ,  H01F6/06 ,  C22F1/18 ,  H01B13/00

CPC分类号： H01B12/10 ,  B22F5/12 ,  B22F7/04 ,  C22C1/0491 ,  C22C32/0031 ,  C22F1/18 ,  H01B13/0016 ,  H01F6/06 ,  H01L39/14 ,  H01L39/2409

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 / mm2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。