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Yttrium barium copper oxide superconducting thin film mixed with samarium and manufacture method thereof

A technology of superconducting thin film and yttrium barium copper oxide is applied in the field of samarium-doped yttrium barium copper oxide superconducting thin film and its preparation field, and can solve the problems of high cost, low deposition efficiency, not suitable for large-scale industrial production and the like, Achieve low cost, improve critical current density, smooth surface effect

Inactive Publication Date: 2012-06-13
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the introduction of the above-mentioned pinning centers mostly adopts the method of physical vapor deposition (PVD), which often requires a vacuum environment, and the deposition efficiency is low, the cost is high, and it is not suitable for large-scale industrial production.

Method used

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  • Yttrium barium copper oxide superconducting thin film mixed with samarium and manufacture method thereof
  • Yttrium barium copper oxide superconducting thin film mixed with samarium and manufacture method thereof
  • Yttrium barium copper oxide superconducting thin film mixed with samarium and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] wxya 0.1 Ba 1.9 Cu 3 o y Preparation of superconducting film: (6.5≤y≤7.0, but this value is not controllable, and it is difficult to test the specific content of oxygen in the film under existing conditions, so it is generally replaced by y)

[0036] Step 1, preparation of precursor solution:

[0037] 101. Add yttrium acetate, samarium acetate, barium acetate and copper acetate to deionized water according to the atomic ratio of yttrium: samarium: barium: copper = 1:0.1:1.9:3 to obtain a suspension;

[0038] 102. According to the stoichiometric ratio of the reaction between trifluoroacetic acid and yttrium acetate, samarium acetate, barium acetate and copper acetate, add 30% excess volume of trifluoroacetic acid to the mixed solution described in 101, stir well and reflux at 80°C for 6 hours , to obtain a blue clear solution; the reaction formula is as follows:

[0039] R(CH 3 COO) n +nCF 3 COOH=R(CF 3 COO) n +nCH 3 COOH

[0040] Where R is Y, Ba, Cu or Sm; wh...

Embodiment 2

[0047] wxya 0.2 Ba 1.8 Cu 3 o y Preparation of superconducting film: (6.5≤y≤7.0, but this value is not controllable, and it is difficult to test the specific content of oxygen in the film under existing conditions, so it is generally replaced by y)

[0048] Step 1, preparation of precursor solution:

[0049] 101. Add yttrium acetate, samarium acetate, barium acetate and copper acetate to deionized water according to the atomic ratio of yttrium: samarium: barium: copper = 1:0.2:1.8:3 to obtain a suspension;

[0050] 102. According to the stoichiometric ratio of the reaction between trifluoroacetic acid and yttrium acetate, samarium acetate, barium acetate and copper acetate, add 30% excess volume of trifluoroacetic acid to the mixed solution described in 101, stir well and then reflux at 80°C for 8 hours , to obtain a blue clear solution; the reaction formula is as follows:

[0051] R(CH 3 COO) n +nCF 3 COOH=R(CF 3 COO) n +nCH 3 COOH

[0052] Where R is Y, Ba, Cu or...

Embodiment 3

[0060] wxya 0.3 Ba 1.7 Cu 3 o y Preparation of superconducting film: (6.5≤y≤7.0, but this value is not controllable, and it is difficult to test the specific content of oxygen in the film under existing conditions, so it is generally replaced by y)

[0061] Step 1, preparation of precursor solution:

[0062] 101. Add yttrium acetate, samarium acetate, barium acetate and copper acetate to deionized water according to the atomic ratio of yttrium: samarium: barium: copper = 1:0.3:1.7:3 to obtain a suspension;

[0063] 102. According to the stoichiometric ratio of the reaction of trifluoroacetic acid with yttrium acetate, samarium acetate, barium acetate and copper acetate, add 30% excess volume of trifluoroacetic acid to the mixed solution mentioned in 101, stir well and reflux at 80°C for 7 hours , to obtain a blue clear solution; the reaction formula is as follows:

[0064] R(CH 3 COO) n +nCF 3 COOH=R(CF 3 COO) n +nCH 3 COOH

[0065] Where R is Y, Ba, Cu or Sm; when...

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Abstract

The invention discloses an yttrium barium copper oxide superconducting thin film mixed with samarium. Chemical composition of the superconducting thin film is YSmxBa2-xCu3Oy, wherein 0

Description

technical field [0001] The invention belongs to the technical field of film materials, in particular to a samarium-doped yttrium-barium-copper-oxygen superconducting film and a preparation method thereof. Background technique [0002] In view of the attractive application prospects of high-temperature superconducting materials in high current (strong electric application), electronics (weak electric application) and diamagnetism, it has been a lot of domestic and foreign research and development of practical superconducting materials in the relatively cheap liquid nitrogen temperature region. direction of the research group's efforts. With the continuous deepening of laboratory research, the practical YBCO high-temperature superconducting material is about to emerge. However, to truly achieve practical application, it is urgent to break through the superconducting performance threshold for coated conductors to enter commercial applications, that is, the critical current dens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/45C04B35/622
Inventor 王鹏飞卢亚锋张国防金利华王耀于泽铭李成山
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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