Preparation method of aluminum base graphene alloy

A technology of aluminum-based olefin and aluminum alloy, which is applied in the field of preparation of aluminum-based olefin alloys, can solve the problems of small size, difficult to disperse, and large specific surface area of ​​graphene, and achieve improved casting and forging performance, good bonding interface, and dispersibility excellent effect

Inactive Publication Date: 2015-11-18
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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Problems solved by technology

However, graphene has the problems of small size, large specific surface area, difficulty in dispersing, and easy agglomeration, which seriously affects the performance of graphene alloys.
At present, the process of graphene-reinforced metal matrix composites has the problem of low output, and it is difficult to form large-scale production
The preparation of ene alloys by powder metallurgy process includes "sheath degassing" + "hot isostatic pressing". The sheath degassing is prone to poor sealing and air leakage, which makes the yield low and increases the production cost and cycle.

Method used

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  • Preparation method of aluminum base graphene alloy
  • Preparation method of aluminum base graphene alloy
  • Preparation method of aluminum base graphene alloy

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Experimental program
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Embodiment 1

[0039] Prepare aluminum-based graphene, the specific steps are as follows:

[0040] a) preparing graphene and aluminum mixed powder, powder comprising: graphene 5g (prepared by Hummer's method), aluminum powder 1kg; aluminum powder 20-25 μm;

[0041] a-1) preparing graphene monodisperse solution;

[0042] a-1-1) configure organic solvent aqueous solution, the weight of organic solvent is 19 times of graphene, organic solvent is ethanol solution, the mass percent of organic solvent in organic solvent aqueous solution is 80%;

[0043] a-1-2) Graphene is dissolved in the organic solvent aqueous solution;

[0044] a-1-3) putting the graphene organic solution prepared in step a-1-2) into an ultrasonic oscillator and stirring the solution for 2 hours;

[0045] a-2) Adding aluminum alloy powder to the graphene monodisperse solution obtained in step a-1), the particle size of the aluminum alloy powder is 5-100 μm;

[0046] a-3) putting the graphene and metal mixed solution obtained...

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Abstract

The invention provides a preparation method of aluminum base graphene alloy. The method comprises the following steps: preparing graphene and aluminum and/or aluminum alloy mixed powder, carrying out cold pressing, and carrying out sintering molding. The method improves an original preparation technology of the aluminum base graphene alloy, and has the advantages of production period and cost reduction, simple process operation, simple required device, high production efficiency, low preparation cost, and easy realization of large-scale industrialization.

Description

technical field [0001] The invention relates to a preparation method of an olefin alloy, in particular to a preparation method of an aluminum-based olefin alloy. Background technique [0002] Graphene is a new type of two-dimensional nanomaterial. Its nanosheet is a two-dimensional material with a single atomic layer thickness composed of sp2 hybridized carbon atoms. It is the thinnest and hardest nanomaterial known in the world, with a strength as high as 1.01Tpa. , is 100 times that of structural steel, but its density is 1 / 5 of that of structural steel. The thermal conductivity is as high as 5300W / m·K, which is higher than that of carbon nanotubes and diamonds. The electron mobility at room temperature exceeds 200,000cm2 / V·S, which is higher than that of carbon nanotubes or silicon crystals. The resistivity is only about 1Ω·m, which is higher than that of aluminum or silver. Lower, the material with the smallest resistivity in the world. [0003] Graphene is a nano-scal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C1/05
Inventor 燕绍九洪起虎杨程陈翔戴圣龙
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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