High-performance REBCO multilayer film, application and preparation method for high-performance REBCO multilayer film

A multi-layer, high-performance technology, applied in coatings, metal material coating processes, ion implantation plating, etc., can solve problems such as affecting film performance and current inability to conduct, and achieve high critical current density, high shape The effect of morphology stability and repeatability, and simple preparation method

Active Publication Date: 2016-06-08
SHANGHAI JIAO TONG UNIV
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies at home and abroad have shown that introducing pinning centers into superconducting thin films by preparing sandwich structures can significantly solve the problem that the Jc of superconducting films decreases rapidly with thickness and magnetic field, but the th

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
  • High-performance REBCO multilayer film, application and preparation method for high-performance REBCO multilayer film
  • High-performance REBCO multilayer film, application and preparation method for high-performance REBCO multilayer film
  • High-performance REBCO multilayer film, application and preparation method for high-performance REBCO multilayer film

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0053] Example 1

[0054] This embodiment provides a method for preparing a REBCO multilayer film on an IBAD-MgO substrate, including the following steps:

[0055] Step 1. Mount the REBCO and STO targets prepared by high-temperature sintering in the target holder in the cavity;

[0056] Step 2. Wrap the IBAD-MgO base tape coated with the isolation layer in the multi-channel pulsed laser deposition system;

[0057] Step 3. Close the door of the coating system and vacuum to the required vacuum level of 1×10 -7 , And then start the heater and heat up to the required temperature value of REBCO thin film process, the temperature is 750℃;

[0058] Step 4. Fill in oxygen, adjust the gas pressure to the pressure value required by the REBCO thin film coating process, the pressure is 200mTorr;

[0059] Step 5. Start the laser target rotation and scanning system, start the excimer laser energy and frequency to the value required by the REBCO thin film coating process, the laser energy is 250mJ, an...

Example Embodiment

[0073] Example 2

[0074] This embodiment provides a method for preparing a REBCO multilayer film on an IBAD-MgO substrate, including the following steps:

[0075] Step 1. Mount the REBCO and STO targets prepared by high-temperature sintering in the target holder in the cavity;

[0076] Step 2. Wrap the IBAD-MgO base tape coated with the isolation layer in the multi-channel pulsed laser deposition system;

[0077] Step 3. Close the door of the coating system and vacuum to the required vacuum level of 1×10 -6 , And then start the heater and heat up to the required temperature value of REBCO thin film process, the temperature is 800℃;

[0078] Step 4. Fill in oxygen, adjust the gas pressure to the pressure required by the REBCO thin film coating process, and the pressure is 300mTorr;

[0079] Step 5. Start the laser target rotation and scanning system, start the excimer laser energy and frequency to the value required by the REBCO thin film coating process, the laser energy is 350mJ, and ...

Example Embodiment

[0093] Example 3

[0094] This embodiment provides a method for preparing a REBCO multilayer film on an IBAD-MgO substrate, including the following steps:

[0095] Step 1. Mount the REBCO and STO targets prepared by high-temperature sintering in the target holder in the cavity;

[0096] Step 2. Wrap the IBAD-MgO base tape coated with the isolation layer in the multi-channel pulsed laser deposition system;

[0097] Step 3. Close the door of the coating system and vacuum to the required vacuum level of 1×10 -5 , And then start the heater and heat up to the required temperature value of REBCO thin film process, the temperature is 800℃;

[0098] Step 4. Fill in oxygen, adjust the gas pressure to the pressure required by the REBCO thin film coating process, and the pressure is 400mTorr;

[0099] Step 5. Start the laser target rotation and scanning system, start the excimer laser energy and frequency to the value required by the REBCO thin film coating process, the laser energy is 450mJ, and ...

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
Thicknessaaaaaaaaaa
Critical current densityaaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical field of yttrium barium copper oxide coating conductors, in particular to a high-performance REBCO multilayer film, application and a preparation method for the high-performance REBCO multilayer film. The high-performance REBCO multilayer film is composed of a REBCO thin film layer and an STO interlayer. The invention further relates to the application of the high-performance REBCO multilayer film during preparing of a high-temperature superconductive belt material and relates to the preparation method for the high-performance REBCO multilayer film. The preparation method comprises the following steps that an IBAD-MgO base belt plated with an isolated layer is taken, and the high-performance REBCO multilayer film is prepared through a multi-target multi-channel pulse laser method. The prepared high-performance REBCO multilayer film prepared has a pure C-axis orientation, a smooth compact surface and a high critical current density, and the critical current density reaches up to 5 MA/cm<2>. The REBCO multilayer film has high critical current under a self field or a magnetic field, has the high binding force, can meet the application requirements for a superconducting cable and the like and is suitable for industrialization production.

Description

technical field [0001] The invention belongs to the technical field of yttrium-barium-copper-oxide-coated conductors, and specifically relates to a high-performance REBCO multilayer film, its application and its preparation method. Background technique [0002] As the second generation of high-temperature superconducting tape, REBCO coated conductor has the characteristics of high critical current density (Jc), magnetic field (Jc-B) characteristics and low price, and it is likely to replace bismuth-based high-temperature superconducting tape in the future. In the field of superconducting strong electric technology, such as motors, motors, transformers, current limiters, magnets, superconducting energy storage, nuclear magnetic resonance imaging, etc. Devices and equipment such as superconducting cables, superconducting transformers and superconducting current limiters made of superconducting tapes have the advantages of small size, light weight, high efficiency and low energ...

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): C23C14/08C23C14/28
CPCC23C14/08C23C14/28
Inventor 刘林飞李贻杰王斌斌姚艳婕吴祥王梦麟
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap