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

Method for preparing nanocarbon conductive fiber coated niobium-aluminum superconducting wire

A technology of carbon nanofibers and conductive fibers, which is applied in the manufacture/processing of superconductor devices, superconducting devices, cables/conductors, etc., can solve the problem of reducing the reactivity of aluminum powder, and meet the requirements of avoiding the particularity of heating equipment, Conducive to the effect of large-scale production and cost reduction

Inactive Publication Date: 2017-12-12
SUZHOU NANER MATERIAL TECH CO LTD
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to control the oxidation of powder during the wire preparation process, especially the oxidation of nano-scale aluminum powder, has always existed. Because of its small size and relatively large area, nano-aluminum powder is very easy to absorb oxygen in the gas and generate oxidation on the surface of aluminum powder particles. Aluminum, which greatly reduces the reactivity of aluminum powder

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Graphite pretreatment, adding sodium fluoride to the nano-graphite powder, adding a metal catalyst, mixing, heating at 600°C under the protection of an inert gas, and controlling the heating time to 10min, fixing sodium fluoride on the surface of the nano-graphite powder .

[0018] Nano-carbon fiber pretreatment, the nano-carbon fiber is oxidized with concentrated sulfuric acid and potassium permanganate mixed acid, after ultrasonic vigorous stirring, the carboxylated nano-carbon fiber is obtained, the surface treatment agent is added, heat treatment at 150 ° C for 10 minutes, and silver is added. Under the protection of a mixed gas of nitrogen and helium, heat at 400° C. for 30 minutes to uniformly disperse the silver in the carbon nanofibers.

[0019] Put pretreated graphite and pretreated nano-carbon fiber in a container, dissolve with 150 parts of isopropanol, then add dispersant, polyphenylene sulfide, PPS resin, blend with a strong mixer, and then use an ultrasoni...

Embodiment 2

[0025] Graphite pretreatment, adding sodium fluoride to the nano-graphite powder, adding a metal catalyst, mixing, heating at 650°C under the protection of an inert gas, and controlling the heating time for 15 minutes, and fixing sodium fluoride on the surface of the nano-graphite powder .

[0026] Nano-carbon fiber pretreatment, the nano-carbon fiber is oxidized with concentrated sulfuric acid and potassium permanganate mixed acid, after ultrasonic vigorous stirring, to obtain carboxylated nano-carbon fiber, add surface treatment agent, heat treatment at 200 ° C for 15 minutes, add silver, in Under the protection of a mixed gas of nitrogen and helium, heat at 450° C. for 45 minutes to uniformly disperse the silver in the carbon nanofibers.

[0027] Put pretreated graphite and pretreated nano-carbon fiber in a container, dissolve with 250 parts of isopropanol, then add dispersant, polyphenylene sulfide, PPS resin, blend with a strong mixer, and then use an ultrasonic disperser...

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

No PUM Login to View More

Abstract

The invention discloses a method for preparing a nanocarbon conductive fiber coated niobium-aluminum superconducting wire. The method is characterized in that aluminium powder is added into a nanocarbon conductive fiber material solution to coat nanocarbon conductive fibers with aluminium powder, clustering is prevented after heat treatment, the electric conductivity is improved, and aluminium powder is prevented from oxidation. According to the method, the phenomena that a precursor has high probability of fracture in high temperature and heating equipment is specially demanded during traditional quick heating and quick cooling treatment are avoided, and the obtained superconducting wire is uniform in ingredient, favorable in performance, effectively lowered in cost and favorable for large-scale production.

Description

technical field [0001] The invention relates to the field of superconducting materials, in particular to a method for preparing a nano-carbon conductive fiber-coated niobium-aluminum superconducting wire. Background technique [0002] A superconducting material refers to a material that exhibits the properties of zero resistance and repelling magnetic lines of force under certain low temperature conditions. It has been found that 28 kinds of elements and thousands of alloys and compounds can become superconductors. The production technology of high-temperature superconducting materials has matured with the development of time, the price has also decreased, and the market competitiveness has continued to increase. It has the advantages of small size, light weight, low loss and large transmission capacity. It is an upgraded product of traditional cables. . [0003] Among practical superconducting materials, A15 type intermetallic compounds are the most common and rapid in de...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01L39/24H10N60/01
CPCH01B13/00H10N60/0184
Inventor 不公告发明人
Owner SUZHOU NANER MATERIAL TECH CO LTD
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