Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Nb-doped YBCO (Yttrium Barium Copper Oxide) super-conducting film and preparation method

A technology of superconducting thin film and thin film, which is applied in the field of YBCO high temperature superconducting thin film material and its preparation, can solve the problems such as difficulty in flexibly controlling the doping amount, unfavorable large-scale industrialization, complex equipment, etc., to achieve improved field performance, The effect of low cost and simple equipment

Active Publication Date: 2013-01-16
深创超导(深圳)科技有限公司
View PDF1 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, methods such as PLD and magnetron sputtering are mainly used to achieve the doping of YBCO. Although these methods have obvious doping effects, the equipment is complicated, requires high vacuum, is expensive, and it is not easy to flexibly control the doping amount. These are unfavorable for large-scale industrialization

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nb-doped YBCO (Yttrium Barium Copper Oxide) super-conducting film and preparation method
  • Nb-doped YBCO (Yttrium Barium Copper Oxide) super-conducting film and preparation method
  • Nb-doped YBCO (Yttrium Barium Copper Oxide) super-conducting film and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Preparation of Nb-doped YBCO precursor:

[0029] (1) Dissolve yttrium acetate and barium acetate in deionized water at a molar ratio of 1:2. After fully stirring and dissolving at 40°C, add three Fluoroacetic acid, reacted at 40°C for 2 hours, then rotovapped at 40°C to obtain a white powder, which was dissolved in anhydrous methanol, Y, the precursor of Ba.

[0030] (2) Dissolve copper acetate and α-methacrylic acid in anhydrous methanol at a molar ratio of 1:4, reflux at 70°C for more than 2 hours, and then rotary evaporate at 40°C to obtain a blue gel, Dissolved with anhydrous methanol to obtain Cu precursor.

[0031] (3) Filter the precursor solutions of Y, Ba, and Cu respectively and mix them to obtain a blue transparent solution. Rotate evaporation at 40°C to obtain a blue gel, and then dilute with anhydrous methanol to control the total cation concentration to 1.5mol / L, is the YBCO precursor.

[0032] (4) Configure Y and Ba precursors according to (1).

...

Embodiment 2

[0040] 1. Preparation of Nb-doped YBCO precursor:

[0041](1) Dissolve yttrium acetate and barium acetate in deionized water at a molar ratio of 1:2. After fully stirring and dissolving at 50°C, add three Fluoroacetic acid, reacted at 50°C for 3 hours, then rotovapped at 50°C to obtain a white powder, which was dissolved in anhydrous methanol, Y, the precursor of Ba.

[0042] (2) Dissolve copper acetate and α-methacrylic acid in anhydrous methanol at a molar ratio of 1:4, reflux at 80°C for more than 3 hours, and then rotary evaporate at 50°C to obtain a blue gel, Dissolved with anhydrous methanol to obtain Cu precursor.

[0043] (3) Filter the precursor solutions of Y, Ba, and Cu respectively and mix them to obtain a blue transparent solution. Rotate evaporation at 50°C to obtain a blue gel, and then dilute with anhydrous methanol to control the total cation concentration to 1.0mol / L, is the YBCO precursor.

[0044] (4) Configure Y and Ba precursors according to (1).

[...

Embodiment 3

[0052] 1. Preparation of Nb-doped YBCO precursor:

[0053] (1) Dissolve yttrium acetate and barium acetate in deionized water at a molar ratio of 1:2. After fully stirring and dissolving at 60°C, add three Fluoroacetic acid, reacted at 60°C for 4 hours, then rotovapped at 60°C to obtain a white powder, which was dissolved in anhydrous methanol, Y, the precursor of Ba.

[0054] (2) Dissolve copper acetate and α-methacrylic acid in anhydrous methanol at a molar ratio of 1:4, reflux at 90°C for more than 4 hours, and then rotary evaporate at 60°C to obtain a blue gel, Dissolved with anhydrous methanol to obtain Cu precursor.

[0055] (3) Filter the precursor solutions of Y, Ba, and Cu respectively and mix them to obtain a blue transparent solution. Rotate evaporation at 60°C to obtain a blue gel, and then dilute with anhydrous methanol to control the total cation concentration to 2.0mol / L, is the YBCO precursor.

[0056] (4) Configure Y and Ba precursors according to (1).

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Critical transition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention provides an Nb-doped YBCO (Yttrium Barium Copper Oxide) super-conducting film and a preparation method. The super-conducting film is prepared by mixing a nano-particle BYNO (Ba2YNbO6) with a double perovskite structure into a YBCO film, wherein an Nb material is 1 to 10% of total quantity of a material of a metal cation. The preparation method comprises the following steps of: preparing a YBCO precursor solution; preparing an Nb precursor solution; preparing an Nb-doped YBCO precursor solution; coating same on a gel film; roasting at a low temperature; and sintering at a high temperature. The preparation method provided by the invention is simple and easy to carry out; a mixture ratio of doped materials can be randomly controlled; and furthermore, raw materials are cheap and easy to obtain, vacuum equipment is not needed, and low cost is ensured; a prepared film has higher critical transition temperature, critical current density and an excellent biaxial texture.

Description

technical field [0001] The invention relates to a YBCO high-temperature superconducting thin film material and a preparation method thereof, and belongs to the technical field of YBCO superconducting thin films. technical background [0002] YBCO coated superconducting material, due to its own series of advantages, has attracted widespread attention in the world once it is discovered, and is considered to be the superconducting material most likely to be applied on a large scale. With the deepening of research, the application of YBCO superconducting materials is also approaching. However, YBCO has a disadvantage, that is, with the increase of the external magnetic field, the critical current density it carries decreases significantly. However, most of the applications of YBCO superconducting materials are under the external magnetic field, so it is really necessary to achieve practical application. It is required to have a high current-carrying capacity under its own field...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B35/45C04B35/622
CPCY02E40/60
Inventor 索红莉毛磊刘敏叶帅徐燕马麟
Owner 深创超导(深圳)科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com