Method for the production of superconducting electrical conductor

A technology of superconductivity and electric conductor, which is applied in the direction of manufacturing/processing of superconducting/high-conducting conductors, superconducting devices, superconducting devices, etc.

Inactive Publication Date: 2008-06-04
NEXANS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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  • Method for the production of superconducting electrical conductor

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Embodiment Construction

[0016] 1 denotes a metal support, which can be embodied as a strip, cable, or tube. It preferably consists of steel and can also function as the tensile central element of the superconductor to be produced. The support body 1 preferably has an outer diameter of between 0.5 mm and 3.0 mm.

[0017] A slit tube 3 is formed around the support body 1 with a metal substrate provided as a band 2 which has been textured by pretreatment, advantageously as close as possible to the support body 1 . Its longitudinally extending edges adjoin one another at a firstly still open slot 4 . In this case, the strip 2 is pulled from a reel 5 and the slit tube 3 is formed in a forming device represented by rollers 6 . It consists, for example, of nickel, copper or iron or alloys. The strip 2 has already been given a biaxial texture in a preprocessing stage, for example. It preferably has a thickness between 50 μm and 150 μm.

[0018] The support body 1 and the slit tube 3 are preferably moved...

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Abstract

The invention provides a method for the production of a superconducting electrical conductor. The method involves applying an yttrium-barium-copper oxide (YBCO) layer on a textured metallic substrate as superconductive material, and performing thermal treatment. To produce a wire conductor, a slot tube (3) is formed from the textured metallic substrate longitudinally around an elongated metallic carrier (1) with a circular transverse cross-section where the textured metallic substrate is provided as a band (2). The slot tube has edges extending longitudinally and adjacent with each other at the slot part (4).The slot tube (3) is closed by welding the slot (4), and a closed tube (9) is dragged up to adhere to the carrier (1). An yttrium-barium-copper oxide layer is applied around the tube and finally a heat treatment is accomplished.

Description

technical field [0001] The present invention relates to a method for producing a superconducting electric conductor, wherein a layer formed of yttrium-barium-copper oxide (YBCO) is provided as superconducting material on a textured (texturiert) metal substrate (US- A-5739086). Background technique [0002] Superconductivity Electrical conductors consist of special materials that transform into a superconducting state at sufficiently low temperatures. The electrical resistance of a correspondingly designed conductor thus approaches zero. Suitable superconducting materials are, for example, YBCO (yttrium-barium-copper oxide) or BSCCO (bismuth-strontium-calcium-copper oxide). A sufficiently low temperature for such a ceramic material to reach the superconducting state is, for example, between 67K and 110K. The corresponding superconductors are called high-temperature superconductors. Suitable coolants are, for example, nitrogen, helium, neon and hydrogen, or mixtures of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L39/24
CPCH01L39/2454Y10T29/49014H10N60/0576H01B12/00
Inventor 阿诺·阿莱斯德克·伊斯福特克劳斯-弗里德里克·西昂克劳斯·波彻
Owner NEXANS
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