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A kind of graphene microchip and alumina hybrid reinforced aluminum matrix composite material and preparation method thereof

A technology of aluminum-based composite materials and graphene microflakes, which is applied in the field of materials, can solve problems affecting comprehensive mechanical properties, achieve the effects of improving friction performance, reducing costs, and increasing hardness

Active Publication Date: 2021-02-09
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research bottleneck is mainly the dispersion of graphene and the control of the interface reaction between graphene and aluminum alloy, which seriously affects the significant improvement of comprehensive mechanical properties.

Method used

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  • A kind of graphene microchip and alumina hybrid reinforced aluminum matrix composite material and preparation method thereof
  • A kind of graphene microchip and alumina hybrid reinforced aluminum matrix composite material and preparation method thereof
  • A kind of graphene microchip and alumina hybrid reinforced aluminum matrix composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] This embodiment provides a graphene microflake and aluminum oxide hybrid reinforced aluminum matrix composite material, the aluminum matrix composite material is prepared from the following components in terms of weight percentage: 0.01% nickel-plated graphene, and the balance is aluminum .

[0026] The preparation steps of the above-mentioned graphene microflakes and aluminum oxide hybrid reinforced aluminum matrix composite materials are as follows:

[0027] 1. Plating nickel on the surface of graphene to activate and sensitize the surface of graphene;

[0028] Two, the nickel-plated graphene and aluminum powder after step one surface treatment adopt alcohol as solvent, carry out wet ball milling, control the content of nickel-plated graphene to be the 0.01% ball mill of the mixture body gross mass of nickel-plated graphene and aluminum powder The speed is 300r / min, and the ball milling time is 3 hours;

[0029] 3. After ball milling, filter and dry the wet mixed po...

Embodiment 2

[0035] This embodiment provides a graphene microflake and aluminum oxide hybrid reinforced aluminum matrix composite material, the aluminum matrix composite material is prepared from the following components in terms of weight percentage: 0.05% nickel-plated ene, and the balance is aluminum.

[0036] The preparation steps of the above-mentioned graphene microflakes and aluminum oxide hybrid reinforced aluminum matrix composite materials are as follows:

[0037] 1. Plating nickel on the surface of graphene to activate and sensitize the surface of graphene;

[0038] Two, the nickel-plated graphene and aluminum powder after step one surface treatment adopt alcohol as solvent, carry out wet ball milling, control the content of nickel-plated graphene to be 0.05% of the mixed powder body mass of nickel-plated graphene and aluminum powder , the ball milling speed is 300r / min, and the ball milling time is 4 hours;

[0039] 3. After ball milling, filter and dry the wet mixed powder, c...

Embodiment 3

[0043]This embodiment provides a graphene microflake and aluminum oxide hybrid reinforced aluminum matrix composite material, the aluminum matrix composite material is prepared from the following components in terms of weight percentage: 0.1% nickel-plated graphene, and the balance is aluminum .

[0044] The preparation steps of the above-mentioned graphene microflakes and aluminum oxide hybrid reinforced aluminum matrix composite materials are as follows:

[0045] 1. Plating nickel on the surface of graphene to activate and sensitize the surface of graphene;

[0046] Two, the nickel-plated graphene and aluminum powder after step one surface treatment adopt alcohol as solvent, carry out wet ball milling, control the content of nickel-plated graphene to be 0.1% of the mixed powder body mass mass of nickel-plated graphene and aluminum powder , the ball milling speed is 300r / min, and the ball milling time is 3 hours;

[0047] 3. After ball milling, filter and dry the wet mixed ...

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Abstract

The invention discloses a graphene microchip and aluminum oxide hybrid reinforced aluminum-based composite material and a preparation method thereof. The aluminum-based composite material is prepared from the following components in terms of weight percentage: 0.01-3% nickel-plated graphene , the balance is aluminum powder, and the preparation method is as follows: one, nickel-plated on the graphene surface, the graphene surface is activated and sensitized; two, the nickel-plated graphene and aluminum powder after surface treatment are used alcohol as a solvent to carry out Wet ball milling; 3. Suction filter and dry the wet mixed powder, and then use a cold press mold to press on an oil press; 4. Put the tableted composite powder into a graphite mold, and dry it under vacuum and argon. Hot-pressed and low-vacuum sintering was carried out under a protective atmosphere. The invention adopts graphene nickel plating to eliminate the agglomeration between graphene powders, uses the method of nickel plating layer and low vacuum hot pressing sintering to control the interface reaction between graphene and aluminum alloy matrix, and is a graphene-enhanced aluminum matrix composite The study of materials provides a theoretical basis.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to an aluminum-based composite material and a preparation method thereof, in particular to a graphene microchip and aluminum oxide hybrid reinforced aluminum-based composite material and a preparation method thereof. Background technique [0002] Aluminum and its alloys are widely used in aviation, aerospace, automotive and electronics industries due to their advantages such as low density, high specific strength, excellent ductility and good processing performance. However, with the widening of its application field, its performance deficiency is also reflected, mainly because the strength and elastic modulus of aluminum alloy are low, which affects its further application. [0003] Combining high-strength and high-modulus reinforcement materials with aluminum and its alloys is the most effective way to significantly improve the strength and elastic modulus of aluminum alloy materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/02B22F3/10B22F3/14C22C1/05C22C21/00C22C1/10
CPCC22C1/05C22C21/00B22F3/1007B22F3/14B22F1/17
Inventor 尹冬松陈客举宋良安勇良南景富张喜龙
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY