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Superconduction stabilizer material, superconducting wire, and superconducting coil

A stabilized, superconducting technology, applied in superconducting magnets/coils, superconducting/high-conducting conductors, superconducting devices, etc., can solve the problems of difficult oxygen and Zr content, complex manufacturing process, and difficult copper alloys, etc. Achieve the effect of reducing manufacturing costs and simplifying the manufacturing process

Active Publication Date: 2017-08-01
MITSUBISHI MATERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in order to make copper highly purified, the manufacturing process becomes very complicated, and there is a problem that the manufacturing cost is greatly increased.
[0013] Here, in Patent Document 1, the content of specific elements (Fe, P, Al, As, Sn, and S) is limited to less than 0.1 ppm, but it is not easy to reduce these elements to 0.1 ppm, and there are still manufacturing processes complicate matters
[0014] Also, in Patent Document 2, the content of oxygen and Zr is specified, but it is difficult to control the content of oxygen and Zr, and there is a problem that it is difficult to stably manufacture a copper alloy with a high residual resistivity (RRR).

Method used

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  • Superconduction stabilizer material, superconducting wire, and superconducting coil
  • Superconduction stabilizer material, superconducting wire, and superconducting coil
  • Superconduction stabilizer material, superconducting wire, and superconducting coil

Examples

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Embodiment

[0088] Hereinafter, the results of confirmation experiments conducted to confirm the effects of the present invention will be described.

[0089] In this example, as a laboratory experiment, high-purity copper with a purity of 99.9999% by mass and a master alloy of Ca, Ce, and La were used as raw materials, and the composition described in Table 1 was adjusted. And, regarding Fe, Ni, As, Ag, Sn, Sb, Pb, Bi, P and other impurities, from Fe, Ni, As, Ag, Sn, Sb, Pb, Bi, P with a purity of 99.9 mass or more and a purity of 99.9 A master alloy of each element was made of mass % pure copper, and adjustments were made using the master alloy. First, at N 2 High-purity copper is smelted in an electric furnace in a reducing gas atmosphere of +CO, and then a master alloy with various additive elements and impurities is added to a specified concentration, and cast in a specified mold to obtain a diameter: 70mm x length: 150mm of ingots. A cross-sectional size: 25mm×25mm square material...

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Abstract

The present invention is a superconduction stabilizer material used in a superconducting wire. The stabilizer material comprises a copper material containing a total of 3 to 400 ppm by mass of one or more additional elements selected from among Ca, La and Ce, with Cu and inevitable impurities as the remainder. The total concentration of the inevitable impurities other than the gas components O, H, C, N and S is 5 to 100 ppm by mass.

Description

technical field [0001] The present invention relates to a superconducting-stabilizing material for a superconducting wire, a superconducting wire provided with the superconducting-stabilizing material, and a superconducting coil composed of the superconducting wire. [0002] This application claims priority based on Patent Application No. 2015-001509 for which it applied in Japan on January 7, 2015, and uses the content here. Background technique [0003] The superconducting wires described above are used in fields such as MRI, NMR, particle accelerators, magnetic levitation trains, and power storage devices. [0004] The superconducting wire has a superconducting stabilization material between Nb-Ti alloy, Nb 3 A multi-core structure in which multiple bare wires made of superconductors such as Sn are bundled together. In addition, there is also provided a tape-shaped superconducting wire in which a superconductor and a superconducting stabilizing material are laminated. ...

Claims

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Application Information

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IPC IPC(8): C22C9/00B22D11/00B22D11/12H01B12/02H01F6/06
CPCB22D11/00B22D11/12C22C9/00H01F6/06H01B12/02H01B12/00Y02E40/60Y10T29/49014B21B1/463H01B12/04
Inventor 福冈航世伊藤优树牧一诚
Owner MITSUBISHI MATERIALS CORP
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