Superconducting strand based on ReBCO high-temperature superconducting tape

A technology of high-temperature superconducting strips and superconducting strips, applied in the field of superconducting strands, can solve the problems of inconvenient application, insufficient flexibility and mechanical strength, etc., and achieve the effect of increasing engineering current density and expanding the scope of application

Inactive Publication Date: 2012-11-14
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current coated superconductors are all in the form of strips or plates, and their flexibility and mechanical strength are not enough in some specific applications.
Since its shape is strip or plate, the application is not very convenient
At present, there is no wire or strand of ReBCO high-temperature superconduct

Method used

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  • Superconducting strand based on ReBCO high-temperature superconducting tape
  • Superconducting strand based on ReBCO high-temperature superconducting tape
  • Superconducting strand based on ReBCO high-temperature superconducting tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1, a superconducting strand based on a circular cross-section of a ReBCO high temperature superconducting tape.

[0031] The cross-sectional structure of a circular cross-section superconducting strand based on ReBCO high-temperature superconducting tape is shown in figure 2 As shown, the superconducting strand is composed of a circular cross-section superconducting strand core and a cladding layer I12, and the circular cross-section superconducting strand core is stacked by coating superconducting tapes I11 of different widths The cladding layer I12 is rolled and coated on the circular cross-section superconducting strand core, and the Ag solder welds the cladding layer I12 in the rolling seam of the cladding layer I12 to form a welding seam 15 .

[0032] The material of coated superconducting tape I11 is YBCO coated superconducting plate in ReBCO (rare earth barium copper oxide system). The width of the coated superconducting tape I11 is cut according to the...

Embodiment 2

[0036] Example 2, a superconducting strand based on a ReBCO high temperature superconducting tape with a rectangular cross-section.

[0037] The cross-sectional structure of a rectangular cross-section superconducting strand based on ReBCO high-temperature superconducting tape is shown in figure 2 As shown in A, the superconducting strand is composed of a superconducting strand core with a square cross-section and a cladding layer II14, and the superconducting strand core with a rectangular cross-section is arranged by coating superconducting strips II13 cut into equal widths Stacked, the width of the coated superconducting tape II13 is greater than the thickness of the superconducting strand core after stacking, and the cladding tape material used for the cladding layer II14 is copper tape. The cladding layer II14 is rolled and coated on the superconducting strand core with a rectangular cross section, and the Ag solder welds the cladding layer II14 in the rolling seam of th...

Embodiment 3

[0041] Example 3, a superconducting strand based on a ReBCO high temperature superconducting tape with a square cross-section.

[0042] The cross-sectional structure of the square cross-section superconducting strand based on the ReBCO high-temperature superconducting tape is as follows figure 2 As shown in B, the superconducting strand is composed of a superconducting strand core with a square cross-section and a cladding layer II14, and the superconducting strand core with a square cross-section is arranged by coating superconducting strips II13 cut into equal widths Stacked, the width of the coated superconducting strip II13 is equal to the thickness of the superconducting strand core after stacking, and the cladding strip material used for the cladding layer II14 is an aluminum alloy strip. The cladding layer II14 is rolled and coated on the superconducting strand core with a rectangular cross section, and the Ag solder welds the cladding layer II14 in the rolling seam of t...

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Abstract

The invention belongs to the field of superconducting material and relates to a superconducting strand based on a ReBCO high-temperature superconducting tape. The superconducting strand comprises a superconducting strand core and a coating layer. The ReBCO high-temperature superconducting tape is cut into tapes which are arranged and stacked to be the superconducting strand core with circular, square or rectangular cross section; the coating layer is made of copper tapes, aluminum tapes, aluminum alloy tapes, stainless steel tapes or ReBCO coating superconducting tapes; the coating layer is rolled and coated on the superconducting strand core. A laser Ag welding technology is used for carrying out butt-seam welding on the coating tapes. The superconducting strand provided by the invention expands the application range of the coating superconductor, improves engineering current density, flexibility and mechanical strength of the superconducting wire, and is applicable to a superconducting cable, a current guide wire, and the like.

Description

technical field [0001] The invention belongs to the field of superconducting materials, in particular to a superconducting strand based on ReBCO high-temperature superconducting tape. Background technique [0002] In recent years, since the rare earth barium copper oxide (ReBCO, Re is Y, Sm or Nd) superconducting materials have higher critical current values ​​and better superconducting properties in a magnetic field, people are actively developing this type of superconducting materials. materials, especially ReBCO-coated high-temperature superconducting materials. From the perspective of economic and engineering applications, coated superconductors have more development potential, so the preparation and application of high-performance coated superconductors are technologies that advanced countries are competing to develop. Coated superconductors can be used to manufacture important power electronic devices such as superconducting cables, superconducting transformers, and s...

Claims

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Application Information

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IPC IPC(8): H01B12/02
CPCY02E40/641Y02E40/60
Inventor 王银顺薛驰长谷川隆代皮伟陆伟青木裕治陈雷张建民小泉勉
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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