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A multilayer structure of barium copper oxide high temperature superconducting coated conductor

A technology of coated conductors and high-temperature superconductivity, applied in superconducting/high-conducting conductors, the usage of superconducting elements, superconducting devices, etc., can solve the problems of element diffusion, secondary phase, holes, etc.

Active Publication Date: 2017-03-29
SHANGHAI SHANGCHUANG SUPERCONDUCTING TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-layer structure of barium copper oxide high temperature superconducting coated conductor and its preparation method, which mainly solve the problems of uneven component structure, serious element diffusion and rough surface in the current second-generation superconducting tape. High degree, hole, quadratic equal defect

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  • A multilayer structure of barium copper oxide high temperature superconducting coated conductor
  • A multilayer structure of barium copper oxide high temperature superconducting coated conductor
  • A multilayer structure of barium copper oxide high temperature superconducting coated conductor

Examples

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Embodiment 1

[0019] Example 1, reference figure 2 , A multi-layer structure of barium-copper-oxygen high-temperature superconducting coated conductors, the bottom layer is manganese lanthanum oxide / magnesium oxide / yttrium oxide / aluminum oxide Hastelloy tape, and the top coating is metal organic deposited rare earth barium copper oxide Superconductor layer, the intermediate coating is a metal organic deposited rare earth barium copper oxide superconductor layer, and a metal organic deposited copper oxide layer is sandwiched between the intermediate coating and the bottom layer. The preparation method includes the following steps:

[0020] a. Weigh the organic salts of Re, Ba, Cu according to the molar ratio of RE:Ba:Cu=1:2:3.25, dissolve the organic salts of Ba in deionized water, stir for 10 minutes and add 20% by mass Trifluoroacetic acid solution, continue to stir for 2 hours, evaporate the solvent to obtain trifluoroacetate gel, mix RE and copper organic salt in deionized water and stir f...

Embodiment 2

[0025] Example 2, reference image 3 , A multi-layer structure of barium-copper-oxygen high-temperature superconducting coated conductors, the bottom layer is manganese lanthanum oxide / magnesium oxide / yttrium oxide / aluminum oxide / hastelloy strip, and the top coating is metal organic deposits rare earth barium copper oxide The intermediate coating is a metal-organic deposited rare earth barium copper oxide superconductor layer, and a metal-organic deposited copper oxide layer is sandwiched between the intermediate coating and the top coating. The preparation method includes the following steps:

[0026] a. Weigh the organic salts of Re, Ba and Cu according to the molar ratio of RE:Ba:Cu=1:2:3.5, dissolve the organic salts of Ba in deionized water, stir for 30 minutes and add 40% by mass Trifluoroacetic acid solution, continue to stir for 5 hours, evaporate the solvent to obtain trifluoroacetate gel, mix RE and copper organic salt in deionized water and stir for 30 minutes, add 2 t...

Embodiment 3

[0031] Example 3, reference figure 2 , A multi-layer structure of barium-copper-oxygen high-temperature superconducting coated conductors, the bottom layer is manganese lanthanum oxide / magnesium oxide / yttrium oxide / aluminum oxide / hastelloy tape, and the top coating is metal organic deposited rare earth barium copper oxide The intermediate coating is a metal-organic deposited rare earth barium copper oxide superconductor layer, and a metal-organic deposited copper oxide layer is sandwiched between the intermediate coating and the bottom layer. The preparation method includes the following steps:

[0032] a. Weigh the organic salts of Re, Ba and Cu according to the molar ratio of RE:Ba:Cu=1:2:3, dissolve the organic salts of Ba in deionized water, stir for 20 minutes and add 30% by mass Trifluoroacetic acid solution, continue to stir for 3 hours, evaporate the solvent to obtain trifluoroacetate gel, mix RE and copper organic salt in deionized water and stir for 20 minutes, add 1.5...

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Abstract

The invention relates to a coated superconductor, in particular to a multi-layer structure for a barium-copper-oxygen high-temperature superconducting coated conductor, and mainly aims at overcoming the defects that an existing second generation superconducting strip has an uneven component structure, serious element diffusion, large surface coarseness, holes, a secondary phase and the like. According to the technical scheme, by the multi-layer structure for the barium-copper-oxygen high-temperature superconducting coated conductor, a lanthanum manganese oxide / magnesium oxide / yttrium oxide / aluminum oxide hastelloy strip is arranged on a bottom layer; a metal-organic deposited rare-earth barium-copper oxide superconductor layer is arranged on a top coating; the metal-organic deposited rare-earth barium-copper oxide superconductor layer is arranged on a middle coating; and the multi-layer structure is characterized in that a metal-organic deposited copper oxide layer is sandwiched between the middle coating and the top coating or between the middle coating and the bottom layer. The multi-layer structure for the barium-copper-oxygen high-temperature superconducting coated conductor is suitable for preparation of a rare-earth barium-copper-oxygen high-temperature superconducting thick film by a chemical method.

Description

Technical field [0001] The invention relates to a coated superconductor, in particular to a multilayer structure of a barium-copper-oxygen high-temperature superconducting coated conductor. Background technique [0002] Based on ReBa 1 Cu 2 O 7-δ (REBaCuO, RE=Y, Gd, Dy and other rare earth elements) The second-generation high-temperature superconducting tape of high-temperature superconductors is a new type of power material. Its structure includes metal base tape, oxide buffer layer, copper-based oxide REBaCuO super Guide layer and metal protective layer. The second-generation high-temperature superconducting tape refers to a rare earth barium copper oxide superconducting coated conductor mainly made of REBCO-123 series superconducting materials. It is composed of a metal alloy base tape, a seed layer, a barrier layer, a cap layer, a rare earth barium copper oxide superconducting layer, a protective layer and a stable layer. Compared with the first-generation Bi-based high-tem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B12/06H01B13/00
CPCH01B12/06H01B13/00Y02E40/60
Inventor 蔡传兵崔传伟刘志勇白传易
Owner SHANGHAI SHANGCHUANG SUPERCONDUCTING TECH CO LTD
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