Graphene-aluminum oxide hybrid reinforced copper-based composite material and preparation method thereof

A copper-based composite material and composite material technology, applied in the field of preparation of copper-based composite materials, can solve the problems of residual graphene oxide, unsatisfactory other performance indicators, cumbersome steps, etc., and achieve improved uniform dispersion and improved wetting The combination of sex and interface and the effect of preparation process optimization

Active Publication Date: 2018-02-23
ZOLTRIX MATERIAL GUANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the steps of this method are cumbersome, and there is a possibility of incomplete reduction of graphene oxide
[0007] In addition, some research has been carried out in the field of multi-phase reinforcement hybrid reinforced copper-based composite materials. For example, patent CN102978434A discloses a short fiber and particle synergistically reinforced copper-based composite material and its preparation method. The short fiber is carbon nanometer Tube, nano-carbon fiber, c...

Method used

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  • Graphene-aluminum oxide hybrid reinforced copper-based composite material and preparation method thereof
  • Graphene-aluminum oxide hybrid reinforced copper-based composite material and preparation method thereof
  • Graphene-aluminum oxide hybrid reinforced copper-based composite material and preparation method thereof

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preparation example Construction

[0042] The preparation method of this composite material comprises the steps:

[0043] S1: Put the graphene in an ultrasonic container for ultrasonic dispersion for 2 hours, and take the ultrasonically dispersed graphene and immerse it in SnCl 2 In the sensitization solution, ultrasonically disperse for 30 minutes again, take it out, filter it, and wash it with deionized water several times; then put the graphene after the sensitization treatment into the palladium sink solution to activate, then ultrasonically disperse it for 30 minutes, take it out and filter it, and use The deionized water was washed several times and then used; finally, the surface of the sensitized and activated graphene particles was treated with electroless nickel plating to obtain graphene@Ni.

[0044] S2: Put the Cu-Al alloy powder in a ball mill tank for in-situ reaction ball milling to obtain Cu-Al 2 o 3 Composite powder.

[0045] S3: placing the composite powder obtained in the step S2 in an alc...

Embodiment 1

[0056] A kind of preparation method of graphene-alumina hybrid reinforced copper-based composite material, described method is carried out according to the following steps:

[0057] S01: Place graphene nanosheets with a thickness of 0.1-3nm and a diameter of 1-2μm in an ultrasonic container for ultrasonic dispersion for 2 hours, and take the ultrasonically dispersed graphene and immerse it in SnCl 2 In the sensitization solution, ultrasonically disperse for 30 minutes again, take it out, filter it, and wash it with deionized water several times; then put the graphene after the sensitization treatment into the palladium sink solution to activate, then ultrasonically disperse it for 30 minutes, take it out and filter it, and use The deionized water was washed several times and then used; finally, the surface of the sensitized and activated graphene particles was treated with electroless nickel plating to obtain graphene@Ni.

[0058] S02: Put Cu-0.6wt%Al (mass percentage) atomize...

Embodiment 2

[0064] A kind of preparation method of graphene-alumina hybrid reinforced copper-based composite material, described method is carried out according to the following steps:

[0065] S01: Place graphene nanosheets with a thickness of 0.1-3nm and a diameter of 1-2μm in an ultrasonic container for ultrasonic dispersion for 2 hours, and take the ultrasonically dispersed graphene and immerse it in SnCl 2 In the sensitization solution, ultrasonically disperse for 30 minutes again, take it out, filter it, and wash it with deionized water multiple times; then put the graphene after sensitization into the palladium sink solution to activate it, then ultrasonically disperse it for 30 minutes, take it out and filter it, and use The deionized water was washed several times and then used; finally, the surface of the sensitized and activated graphene particles was treated with electroless nickel plating to obtain graphene@Ni.

[0066] S02: Put Cu-0.6wt%Al (mass percentage) atomized alloy po...

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Abstract

The invention discloses a graphene-aluminum oxide hybrid reinforced copper-based composite material. The composite material comprises 0.1-1.0 wt% of graphene, 1.0-1.2 wt% of Al2O3, and the balance copper. According to the copper-based composite material, the graphene and the aluminum oxide are adopted as complex-phase reinforcement bodies, zero-dimensional aluminum oxide particles can be effectively pinned through a special two-dimensional structure of a nano graphene sheet, a steric-hinerance effect is generated, accordingly, the agglomeration phenomenon of the particles is effectively reduced, and the particles are uniformly scattered; and the surface of the graphene is subjected to chemical nickel-plating and modification treatment, thus, the wettability and the interface bonding situation between the graphene/copper matrixes can be obviously improved, ideal interface bonding is achieved, accordingly, the synergistic effect between the graphene and the aluminum oxide particles is realized to the greatest extent, and the combination properties including strength, hardness, electrical conductivity, and friction and wear properties of the copper-based composite material are comprehensively improved.

Description

technical field [0001] The invention relates to the technical field of preparation of copper-based composite materials, in particular to a graphene-alumina hybrid reinforced copper-based composite material and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of aerospace technology, aerospace, electronic communication, rail transit and other fields, the demand for materials with wide temperature range, high strength, high conductivity, high heat resistance, excellent self-lubricating and wear-reducing functions has become increasingly strong. Traditional Single metal materials have been difficult to meet the actual needs, and material compounding has become an inevitable trend of its development. [0003] As an important part of the field of metal matrix composites, copper matrix composites have attracted the attention of many researchers. Traditional copper-based composite materials often use SiC, Al 2 o 3 、Si 3 N ...

Claims

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Application Information

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IPC IPC(8): C22C9/00C22C1/05B22F3/105
CPCB22F3/105B22F2003/1051C22C1/05C22C9/00
Inventor 张雪辉谢臣珍李晓闲
Owner ZOLTRIX MATERIAL GUANGZHOU
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