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Composite superconducting material

A superconducting material and superconducting technology, which can be applied in superconducting devices, superconducting/high-conducting conductors, superconducting elements, etc., can solve problems such as application obstacles, and achieve the effect of dense and smooth surface and excellent superconducting performance

Inactive Publication Date: 2016-05-04
常熟市东方特种金属材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the one hand, the exploration of the high-temperature superconducting mechanism has attracted the attention of many physicists; on the other hand, due to energy and other special needs, the industry has high hopes for superconducting technology, but because the critical temperature of general superconducting alloys is close to absolute Zero degrees, refrigeration causes many obstacles in application, and high-temperature superconductivity is one of the future solutions that everyone is looking forward to

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The rare earth metal salt, barium salt and copper salt are mixed in a molar ratio of 1:1.5:2, and dispersed in a solvent at room temperature to prepare a precursor precursor; a polymer is added to the precursor precursor, and a magnetic stirrer is used to stir , obtain the first precursor liquid; select the magnesium oxide single crystal substrate as the superconducting substrate, and coat the first precursor liquid on the superconducting substrate by the pulling method; put the superconducting substrate coated with the first precursor liquid on the superconducting substrate In the heat treatment furnace, first perform low temperature treatment for 30 minutes, then perform high temperature treatment for 150 minutes, and finally perform low temperature treatment for 20 minutes to form a YBCO superconducting layer on the substrate; apply the second precursor solution containing yttrium ions on the YBCO superconducting layer. On the conductive layer, sintering is performed ...

Embodiment 2

[0016] The rare earth metal salt, barium salt and copper salt are mixed in a molar ratio of 1:2:2.5, and dispersed in a solvent at room temperature to prepare a precursor precursor; a polymer is added to the precursor precursor, and a magnetic stirrer is used to stir , obtain the first precursor liquid; select the magnesium oxide single crystal substrate as the superconducting substrate, and coat the first precursor liquid on the superconducting substrate by the pulling method; put the superconducting substrate coated with the first precursor liquid on the superconducting substrate In the heat treatment furnace, first perform low temperature treatment for 100 minutes, then perform high temperature treatment for 180 minutes, and finally perform low temperature treatment for 30 minutes to form a YBCO superconducting layer on the substrate; coat the second precursor solution containing magnesium ions on the YBCO superconducting layer. On the conductive layer, sintering is performe...

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Abstract

The invention discloses a composite superconducting material, which comprises a superconducting base material and a superconducting film, wherein the superconducting film coats the surface of the superconducting base material; the thickness of the superconducting film is 0.2-1.0micron; the superconducting film is a YBCO composite film; the YBCO composite film comprises at least two YBCO superconducting layers; and a conductive metal oxide layer is arranged between two adjacent YBCO superconducting layers. The composite superconducting material disclosed by the invention is compact and smooth in surface and excellent in superconducting property.

Description

technical field [0001] The invention relates to the field of material preparation, in particular to a composite superconducting material. Background technique [0002] Superconductivity is one of the most wonderful phenomena in the physical world. Generally, the resistance of superconducting alloys drops to zero and enters the superconducting state when it is close to absolute zero. High-temperature superconductivity refers to the sudden drop of resistance to zero at a relatively high critical temperature. It has a completely different physical mechanism and a wider range of application prospects. In 1986, physicists discovered cuprate high-temperature superconductors, which won the Nobel Prize in Physics the following year. Since then, scientists' exploration of new high-temperature superconducting materials has never stopped. While continuously pursuing higher critical temperatures, physicists have been working hard to reveal the mechanism. At present, almost all develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B12/06
CPCH01B12/06Y02E40/60
Inventor 朱正良
Owner 常熟市东方特种金属材料厂
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