Continuous preparation method of three-dimensional in-situ graphene reinforced metal matrix composite

A composite material and graphene technology, which is applied in metal material coating process, metal rolling, gaseous chemical plating, etc., can solve the problems of difficulty in guaranteeing the quality of graphene, poor bonding of metal-graphene interface, graphene distribution and Low density and other problems, to avoid material densification, realize continuous large-scale preparation, and promote high-temperature molding and densification

Pending Publication Date: 2022-03-22
SHANGHAI UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0009] In order to solve the problems of the prior art, the object of the present invention is to overcome graphene agglomeration, metal-graphene interface bonding is not strong, the quality of graphene is difficult to guarantee, graphene distribution and low density in the preparation process of graphene reinforced metal matrix composites and other issues, a continuous preparation method of three-dimensional in-situ graphene-reinforced metal matrix composites is proposed to prepare metal matrix composites with long dimensions and excellent properties.

Method used

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  • Continuous preparation method of three-dimensional in-situ graphene reinforced metal matrix composite
  • Continuous preparation method of three-dimensional in-situ graphene reinforced metal matrix composite
  • Continuous preparation method of three-dimensional in-situ graphene reinforced metal matrix composite

Examples

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Embodiment 1

[0045] In this example, see figure 1 , a continuous preparation method of a three-dimensional in-situ graphene-reinforced metal matrix composite, comprising the steps of:

[0046] Step 1: Transport the commercial nickel foam strip 1 to a vacuum heat treatment furnace 3 in a hydrogen reducing atmosphere at 1000°C through a conveyor belt 2, and keep it for 30 minutes to fully wash the impurities and oil stains on the surface of the nickel foam strip; see figure 2 , is the physical figure of the commercial nickel foam strip 1 in the present embodiment;

[0047] Step 2: Transport the washed commercial nickel foam strip 1 through the conveyor belt 2 to a vacuum heat treatment furnace 4 with a mixed atmosphere of methane and hydrogen at 1000°C, and keep it for 30 minutes to promote the full reaction of foam nickel 1 and methane 4, and finally realize Vapor-phase chemical deposition of graphene on nickel foam to produce monolithic graphene-reinforced nickel foam ribbon5; see imag...

Embodiment 2

[0053] The method of this embodiment is basically the same as that of Embodiment 1, especially in that:

[0054] In this example, the continuous preparation method of three-dimensional in-situ graphene-reinforced metal matrix composites is suitable for chemical vapor deposition of different carbon sources. The gaseous carbon source is methane, and the solid carbon source is polymethylpropionate, formic acid At least one of copper and amorphous carbon;

[0055] The method of this embodiment is applicable to metal foam substrates of different shapes, and at least one of porous metal foam strips, rods and profiled materials is used;

[0056] The method of this embodiment is applicable to various high-temperature mechanical processing methods, and at least one of rolling, swaging, and continuous extrusion is adopted;

[0057] The method of this embodiment is applicable to the continuous preparation of various metal-based graphene composite materials, and at least one metal or all...

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Abstract

The invention discloses a continuous preparation method of a three-dimensional in-situ graphene reinforced metal-based composite material, which comprises the following steps: conveying a commercial foam metal base material into a high-temperature vacuum heat treatment furnace in a hydrogen reduction atmosphere through a conveyor belt, and removing impurities and oil stains on the surface of the base material; the metal base material is conveyed into a high-temperature heat treatment furnace protected by a hydrogen and methane mixed atmosphere through a conveying belt, and graphene is deposited on the foam metal base material through chemical vapor deposition; the deposited graphene foam metal base material is conveyed to a room-temperature vacuum furnace protected by mixed gas of hydrogen and argon through a conveying belt and cooled to the room temperature; a winding and unwinding device is adopted for winding and unwinding and stacking on a conveying belt; and the stacked multi-layer graphene foam metal base material is conveyed to a continuous hot rolling area to be subjected to multi-pass continuous hot rolling, and therefore high-temperature forming and continuous preparation of the metal-based graphene composite material are achieved. The method is used for preparing various metal-based graphene composite materials, and the graphene-metal matrix bonding degree is high.

Description

technical field [0001] The invention relates to the field of metal-matrix composite materials, in particular to a method for producing a three-dimensional in-situ graphene-reinforced metal-matrix composite material through chemical vapor deposition composite continuous rolling technology using metal foam as a matrix. Background technique [0002] Composite materials are composed of two or more materials with different components. Because they have a variety of excellent properties at the same time, composite materials are widely used in aerospace, automotive, microelectronics and other fields. Generally speaking, a composite material consists of one material as a matrix and one or more materials as a reinforcing phase. The metal matrix is ​​widely used, and the reinforcing phase is usually fibers, nanosheets and nanoparticles with excellent properties, such as carbon fibers, asbestos fibers, whiskers, etc. Since the discovery of graphene by two scholars from the University ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/26C23C16/02C23C16/54C23C16/56C22C1/08B21B1/38C22C19/03C22C19/07C22C9/00C22C5/04
CPCC23C16/26C23C16/545C23C16/56C23C16/0227C22C1/08B21B1/38C22C19/03C22C19/07C22C9/00C22C5/04B21B2001/386
Inventor 钟云波林中泽沈喆时培建
Owner SHANGHAI UNIV
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