Graphene reinforced alloy composite material and preparation method thereof

A composite material, graphene technology, applied in metal material coating technology, metal processing equipment, chemical instruments and methods, etc., can solve the problems of graphene edge damage, affecting the mechanical properties of composite materials, etc., to achieve good compatibility, The effect of improving mechanical properties

Inactive Publication Date: 2021-04-02
BEIJING FEILIXIN INFORMATION SECURITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Patent CN109234658B discloses a method for preparing graphene-reinforced aluminum alloy composite materials. First, prepare graphene composite powder, then prepare prefabricated plates, and finally friction stir, but in the process of friction stirring, it will cause damage to the edges of graphene, affecting Mechanical properties of the resulting composites

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of preparation method of graphene-reinforced alloy composite material, concrete steps are as follows:

[0035] (1) First, use graphene oxide aqueous solution as raw material to make porous graphene colloid, then melt the first part of the alloy into alloy melt, pour it into porous graphene colloid, heat extrude, and pulverize into powder I; at the same time, The second part of the alloy is smelted into an alloy melt, and high-purity silicon powder is added to the alloy melt, stirred and mixed, and the restrictive annular gap nozzle is used to atomize to obtain the powder II; the powder I and the powder II are combined, mixed evenly, and the prepared powder is obtained. processing alloy powder;

[0036] (2) Then place the pretreated alloy powder in a high-purity ark, transfer it to a high-temperature tube furnace, perform oxidation-reduction treatment, and then pass methane and hydrogen to grow graphene to obtain a coated alloy powder;

[0037] (3) Pre-pressing a...

Embodiment 2

[0051] A kind of preparation method of graphene-reinforced alloy composite material, concrete steps are as follows:

[0052] (1) First, use graphene oxide aqueous solution as raw material to make porous graphene colloid, then melt the first part of the alloy into alloy melt, pour it into porous graphene colloid, heat extrude, and pulverize into powder I; at the same time, The second part of the alloy is smelted into an alloy melt, and high-purity silicon powder is added to the alloy melt, stirred and mixed, and the restrictive annular gap nozzle is used to atomize to obtain the powder II; the powder I and the powder II are combined, mixed evenly, and the prepared powder is obtained. processing alloy powder;

[0053] (2) Then place the pretreated alloy powder in a high-purity ark, transfer it to a high-temperature tube furnace, perform oxidation-reduction treatment, and then pass methane and hydrogen to grow graphene to obtain a coated alloy powder;

[0054] (3) Pre-pressing a...

Embodiment 3

[0068] A kind of preparation method of graphene-reinforced alloy composite material, concrete steps are as follows:

[0069] (1) First, use graphene oxide aqueous solution as raw material to make porous graphene colloid, then melt the first part of the alloy into alloy melt, pour it into porous graphene colloid, heat extrude, and pulverize into powder I; at the same time, The second part of the alloy is smelted into an alloy melt, and high-purity silicon powder is added to the alloy melt, stirred and mixed, and the restrictive annular gap nozzle is used to atomize to obtain the powder II; the powder I and the powder II are combined, mixed evenly, and the prepared powder is obtained. processing alloy powder;

[0070] (2) Then place the pretreated alloy powder in a high-purity ark, transfer it to a high-temperature tube furnace, perform oxidation-reduction treatment, and then pass methane and hydrogen to grow graphene to obtain a coated alloy powder;

[0071] (3) Pre-pressing a...

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Abstract

The invention provides a graphene reinforced alloy composite material and a preparation method thereof. The preparation method comprises the steps that a graphene oxide aqueous solution serves as a raw material to prepare porous graphene colloid, a first part of alloy is smelted into alloy melt, the alloy melt is poured into the porous graphene colloid, and hot extrusion and smashing are conductedto obtain powder I; meanwhile, a second part of alloy is smelted into alloy melt, high-purity silicon powder is added into the alloy melt, the mixture is stirred and mixed to be uniform, a limiting type circular seam nozzle is adopted, and atomization is conducted to obtain powder II; the powder I and the powder II are combined, and uniformly mixed to obtain pretreated alloy powder; then the pretreated alloy powder is put into a high-purity square vessel, the high-purity square vessel is transferred into a high-temperature tubular furnace, oxidation-reduction treatment is conducted, methane and hydrogen are introduced to carry out graphene growth, and thus, coated alloy powder is obtained; and finally the coated alloy powder is subjected to pre-pressing forming and sintering to obtain thegraphene reinforced alloy composite material. The mechanical property of the product is effectively improved.

Description

technical field [0001] The invention relates to the technical field of alloy materials, in particular to a graphene-enhanced alloy composite material and a preparation method thereof. Background technique [0002] Alloy materials (such as aluminum alloys, copper alloys, and magnesium alloys, etc.) have the advantages of good electrical and thermal conductivity and easy forming, and are widely used in many fields. With the development of modern science and technology, traditional alloy materials can no longer meet the performance requirements of practical applications, especially the higher and higher strength requirements. [0003] Graphene is a two-dimensional nanomaterial composed of carbon atoms. Due to its unique two-dimensional honeycomb crystal structure and extremely high bond strength, graphene is the material with the highest specific strength and the hardest known in the world. Yang Its modulus is about 1100GPa, and its fracture strength is about 130GPa, which are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/08B22F1/00B22F1/02B22F3/02B22F3/10C22C1/04C23C16/26
CPCB22F9/082B22F3/02B22F3/10C22C1/04C23C16/26B22F1/145B22F1/16C22C1/058B22F2998/10B22F2999/00C22C26/00B22F1/09B22F1/142B22F2003/1051B22F2201/013B22F2201/30C22C1/1036B22F2003/208B22F9/04C22C1/081C01B32/194C01B32/192C22C1/1005C22C1/1094C22C1/1089
Inventor 杜波
Owner BEIJING FEILIXIN INFORMATION SECURITY TECH CO LTD
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