Graphene/metal matrix composite material and preparation method thereof

A composite material and graphene technology, applied in the field of graphene/metal matrix composite material and its preparation, can solve the problem that the comprehensive performance cannot meet the actual needs, and achieve the effects of high conductivity, high efficiency and simple process

Inactive Publication Date: 2014-09-10
WUHAN UNIV
View PDF2 Cites 47 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the demand for metal matrix composites with high strength, high electrical conductivity and high thermal conductivity is becoming more and more urgent. Although some metal matrix composites have been successfully applied in industry, their comprehensive performance is far from meeting the actual needs.

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
  • Graphene/metal matrix composite material and preparation method thereof
  • Graphene/metal matrix composite material and preparation method thereof
  • Graphene/metal matrix composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The average particle size of graphite powder in this embodiment is 325 mesh. The Hummer method is used. The details are as follows: first weigh 0.2g graphite and 0.5gK 2 S 2 O 4 And 0.5g P 2 O 5 Measure 4mL of concentrated sulfuric acid and mix it evenly, and put it in a water bath at 80°C and keep stirring for four hours before taking it out. Add 12mL concentrated sulfuric acid to the treated solution, and slowly add 2g KMnO below 20°C (addition rate is 0.1 g / min) 4 . Join KMnO 4 Afterwards, it was stirred at a constant temperature for 2 hours at 35°C. Then add it to 25 mL of distilled water, and use concentrated sulfuric acid to absorb water and exothermic heat, so that the graphite flakes are completely oxidized and separated. The resultant was added to 70 mL of distilled water, and kept at 70°C for 1 hour. Add 3mL hydrogen peroxide to the solution to remove excess KMnO 4 , Wash with alcohol to the solution pH=7, ultrasonically disperse for 1 hour, and dry the solu...

Embodiment 2

[0029] The experimental conditions for chemically exfoliating graphene are the same as in Example 1. After the graphene oxide is obtained, it is heated in a tube furnace, and heated to 700 degrees Celsius in an argon atmosphere for 2 hours to obtain thermally reduced graphene.

Embodiment 3

[0031] The experimental conditions for chemical exfoliation of graphene are the same as in Example 1. After obtaining graphene oxide, disperse it in an aqueous solution, add 0.5 mg / mL of the same volume of hydrazine hydrate solution, and heat it in a water bath at 90°C for 30 minutes. After filtration, hydrazine hydrate chemically reduced graphene is obtained.

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
particle sizeaaaaaaaaaa
electron mobilityaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical field of graphene/metal matrix composite materials and in particular relates to a graphene/metal matrix composite material and a preparation method thereof. The preparation method of the graphene/metal matrix composite material is as follows: reduced graphene or high-quality graphene prepared by an electric discharge sintering method and nano metal powder are added into an ethanol solution, ultrasonic mixing is carried out, and then ball milling, drying and sintering are carried out, so that the graphene/metal matrix composite material is obtained. The preparation method of the graphene/metal matrix composite material has the advantages of simple process, wide applicability and high efficiency; the prepared graphene/metal matrix composite material has the advantages of high conductivity, high thermal conductivity and high strength; strength of a metal matrix composite material is improved while good electricity conducting and heat conducting properties of the metal matrix composite material are maintained.

Description

Technical field [0001] The invention relates to the technical field of graphene / metal matrix composite materials, in particular to a graphene / metal matrix composite material and a preparation method thereof. Background technique [0002] Graphene is carbon atoms with sp 2 The hybrid two-dimensional honeycomb structure is considered to be "the thinnest material in the universe". From a structural point of view, graphene can be used as the basic unit of other carbon materials. This unique two-dimensional structure gives graphene extremely excellent physical, chemical, and mechanical properties. For example, graphene is the world's thinnest material (single-layer graphene thickness is only 0.335 nm); currently known strongest material (up to 130GPa, about 100 times that of ordinary steel); excellent toughness (modulus of elasticity) Up to 1.1 TPa); Outstanding electrical conductivity, high-speed electron mobility at room temperature (up to 15000cm 2 / (V·s), about 140 times that of...

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): C22C1/05C22C1/10C22C9/00
Inventor 潘春旭余超智张豫鹏
Owner WUHAN 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