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Multi-layer structure for barium-copper-oxygen high-temperature superconducting coated conductor

A technology of coated conductors and high-temperature superconductors, which is applied in superconducting/high-conducting conductors, the usage of superconducting elements, superconducting devices, etc., and can solve problems such as element diffusion, holes, and uneven component structure

Active Publication Date: 2016-05-04
SHANGHAI SHANGCHUANG SUPERCONDUCTING TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • Multi-layer structure for barium-copper-oxygen high-temperature superconducting coated conductor
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  • Multi-layer structure for barium-copper-oxygen high-temperature superconducting coated conductor

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Embodiment 1

[0019] Embodiment 1, with reference to figure 2 , a multilayer structure of barium copper oxide high temperature superconducting coated conductor, the bottom layer is manganese lanthanum oxide / magnesium oxide / yttrium oxide / aluminum trioxide Hastelloy strip, and the top coat is metal organic deposited rare earth barium copper oxide The superconductor layer, the intermediate coating is a metal organic compound deposited rare earth barium copper oxide superconductor layer, and a metal organic compound deposited copper oxide layer is sandwiched between the intermediate coating and the bottom layer. Its preparation method comprises the following steps:

[0020] a. Weigh the organic salts of Re, Ba, and 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 Trifluoroacetic acid solution, continue to stir for 2 hours, evaporate the solvent to obtain trifluoroacetic acid salt gel, mix RE and copper organ...

Embodiment 2

[0025] Embodiment 2, with reference to image 3 , a multilayer structure of barium copper oxide high temperature superconducting coated conductor, the bottom layer is manganese lanthanum oxide / magnesium oxide / yttrium oxide / aluminum oxide / Hastelloy strip, and the top coat is metal organic deposition rare earth barium copper oxide The material superconductor layer, the intermediate coating is a metal organic deposition rare earth barium copper oxide superconductor layer, and a metal organic deposition copper oxide layer is sandwiched between the intermediate coating and the top coating. Its preparation method comprises 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 Trifluoroacetic acid solution, continue to stir for 5 hours, evaporate the solvent to obtain trifluoroacetic acid salt gel, mix RE and copper organic salts in ...

Embodiment 3

[0031] Embodiment 3, with reference to figure 2 , a multilayer structure of barium copper oxide high temperature superconducting coated conductor, the bottom layer is manganese lanthanum oxide / magnesium oxide / yttrium oxide / aluminum oxide / Hastelloy strip, and the top coat is metal organic deposition rare earth barium copper oxide The material superconductor layer, the intermediate coating is a metal organic deposition rare earth barium copper oxide superconductor layer, and a metal organic deposition copper oxide layer is sandwiched between the intermediate coating and the bottom layer. Its preparation method comprises 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 Trifluoroacetic acid solution, continue to stir for 3 hours, evaporate the solvent to obtain trifluoroacetic acid salt gel, mix and dissolve the organic salt o...

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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 coating superconductor, in particular to a multilayer structure of a barium copper oxide high temperature superconducting coating 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 strip of high-temperature superconductor is a new type of power material, and its structure includes a metal base strip, an oxide buffer layer, a copper-based oxide REBaCuO superconductor conductive layer and metal protection layer. The second-generation high-temperature superconducting tape refers to a rare-earth barium copper oxide superconducting coating conductor mainly composed of REBCO-123 superconducting materials. It is composed of a metal alloy base band, 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 f...

Claims

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Application Information

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Patent Type & Authority Applications(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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