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Production method of second generation high temperature superconducting band metal toughness template

A high-temperature superconducting tape and metal technology, which is used in equipment for manufacturing conductive/semiconducting layers, cable/conductor manufacturing, electrical components, etc. Low, cost-reducing effect

Active Publication Date: 2017-06-09
SHANGHAI SUPERCONDUCTOR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention mainly solves the problem of "mirror surface cold rolling" which is difficult to make the surface of the metal toughness template reach the level of nanometer level, and the cumbersome process of multiple coating films required by the existing chemical solution leveling technology

Method used

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  • Production method of second generation high temperature superconducting band metal toughness template
  • Production method of second generation high temperature superconducting band metal toughness template
  • Production method of second generation high temperature superconducting band metal toughness template

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment relates to a method for preparing a second-generation high-temperature superconducting strip metal toughness template. The structure diagram of the second-generation high-temperature superconducting strip metal toughness template is as follows figure 1 shown. Described preparation method comprises the steps:

[0042] 1) The rolling process of the alloy base strip: the Hastelloy C276 base material is cold-rolled in a single pass with a reduction rate of 0.1%. The working rolls of the rolling mill used are mirror polished with a roughness of 20 nm. The thickness of the base tape after production is 0.2mm;

[0043] 2) Using chemical solution deposition technology to grow an amorphous oxide film on the Hastelloy base tape obtained in step 1; specifically: coating the precursor solution that can obtain the amorphous oxide film on the surface of the base tape, and performing heat treatment; The composition of the crystal oxide film is Gd 2 o 3 -ZrO 2 The ...

Embodiment 2

[0046] This embodiment relates to a method for preparing a second-generation high-temperature superconducting strip metal toughness template. The structure diagram of the second-generation high-temperature superconducting strip metal toughness template is as follows image 3 shown. Described preparation method comprises the steps:

[0047] 1) The rolling process of the alloy base strip: the stainless steel substrate is cold-rolled in a single pass with a reduction rate of 0.1%. The working rolls of the rolling mill used are mirror polished with a roughness of 10 nanometers. 0.1mm thick;

[0048] 2) Using chemical solution deposition technology to grow a crystalline oxide film on the Hastelloy baseband obtained in step 1; specifically: coating the precursor solution that can obtain the crystalline oxide film on the surface of the baseband, and performing heat treatment; The composition of the oxide film is La 2 o 3 -ZrO 2 -La 2 Zr 2 o 7 The mixture, the number of cycles...

Embodiment 3

[0051] This embodiment relates to a method for preparing a second-generation high-temperature superconducting strip metal toughness template. The structure diagram of the second-generation high-temperature superconducting strip metal toughness template is as follows Figure 5 shown. Described preparation method comprises the steps:

[0052] 1) The rolling process of the alloy base strip: the Hastelloy C276 base material is cold-rolled in a single pass with a reduction rate of 0.1%. The working rolls of the rolling mill used are mirror polished with a roughness of 5 nanometers. The thickness of the base tape after production is 0.05 mm;

[0053] 2) Using chemical solution deposition technology to grow a crystalline oxide film on the Hastelloy baseband obtained in step 1; specifically: coating the precursor solution that can obtain the crystalline oxide film on the surface of the baseband, and performing heat treatment; The composition of the film is YSZ, the number of cycles ...

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Abstract

The invention discloses a production method of a second generation high temperature superconducting band metal toughness template. The production method comprises steps that a high temperature alloy board is selected, and is thinned to a thickness required by the high temperature superconducting band after mirror cold rolling processing, and then a base band is acquired; by adopting a chemical solution deposition method, an amorphous film isolation layer or a crystalline film isolation layer is deposited and grown on the base band; by adopting a chemical solution leveling method or a vacuum coating method, an amorphous oxide thin film is deposited and grown on the amorphous film isolation layer or the crystalline film isolation layer. By adopting the technological route of combining the mirror cold rolling and the deposition of a plurality of layers of thin films by adopting the chemical solution, the composite thin film toughness metal base band having strong oxidation-resistant performance and flat surface is produced, and the roughness of the surface of the base band reaches lower than two nanometers, and then the production method can be directly used for deposition of a high quality IBAD oxide thin film (for example, MgO, TiN, and YSZ), and therefore the low-cost high-efficiency preparation method is provided for industrial production of a second generation ReBCO high temperature superconducting band.

Description

technical field [0001] The invention relates to the technical field of preparation of second-generation high-temperature superconducting strips, in particular to a method for preparing metal tough templates of second-generation high-temperature superconducting strips. Background technique [0002] Compared with the first-generation high-temperature superconducting wire tape, the second-generation high-temperature superconducting wire tape has the following advantages: high operating temperature, low raw material price, and good current-carrying capacity under an external magnetic field. This makes this material have a wider application prospect. In order to obtain superconducting wire strips that can be used in practice, depositing high-temperature superconducting oxides with poor mechanical properties on metal tough templates in the form of thin films is currently the main technical means. The properties of metal ductile templates are particularly important for second-gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00
CPCH01B13/0026H01B13/0036
Inventor 赵跃储静远洪智勇金之俭
Owner SHANGHAI SUPERCONDUCTOR TECH CO LTD
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