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Preparation method for metal-clad graphene reinforced metal matrix composites

A graphene composite and metal cladding technology, applied in metal material coating process, metal processing equipment, transportation and packaging, etc., can solve problems such as poor interface bonding, reduce agglomeration, improve compatibility, and simple process. Effect

Active Publication Date: 2018-07-27
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to solve the problem of poor interface bonding between the surface of carbon nanotubes and the metal matrix, and provide a method for in-situ reduction of coated metals on the surface of carbon nanotubes, and then compounded with metals. Thereby obtaining a kind of preparation method of metal-coated carbon nanotube reinforced metal matrix composite material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of preparation method of metal clad graphene reinforced metal matrix composite material, this preparation method is carried out according to the following steps:

[0023] a. In-situ reduction of the powdered graphene surface to coat the metal to obtain a metal-coated graphene composite powder;

[0024] B, the metal-coated graphene composite powder and the metal powder are mixed by ball milling to obtain the metal-coated graphene composite powder / metal mixed powder;

[0025] c adopt the powder metallurgy warm-pressing process to warm-press the metal-coated graphene / metal mixed powder, sinter, and process the composite material by extrusion, forging and rolling to obtain the metal-coated Graphene-reinforced metal matrix composites;

[0026] The in-situ reduction of coated metal on the surface of graphene comprises the following steps:

[0027] a powdery graphene is pressed into sheets, wherein the thickness of the sheet is 0.01cm;

[0028] b. Use the sheet press...

Embodiment 2

[0034] A kind of preparation method of metal clad graphene reinforced metal matrix composite material, this preparation method is carried out according to the following steps:

[0035] a. In-situ reduction of the powdered graphene surface to coat the metal to obtain a metal-coated graphene composite powder;

[0036] B, the metal-coated graphene composite powder and the metal powder are mixed by ball milling to obtain the metal-coated graphene composite powder / metal mixed powder;

[0037] c adopt the powder metallurgy warm-pressing process to warm-press the metal-coated graphene / metal mixed powder, sinter, and process the composite material by extrusion, forging and rolling to obtain the metal-coated Graphene-reinforced metal matrix composites;

[0038] The in-situ reduction of coated metal on the surface of graphene comprises the following steps:

[0039] a powdery graphene is pressed into sheets, wherein the thickness of the sheet is 0.1cm;

[0040] b Use the sheet pressed...

Embodiment 3

[0046] A kind of preparation method of metal clad graphene reinforced metal matrix composite material, this preparation method is carried out according to the following steps:

[0047] a. In-situ reduction of the powdered graphene surface to coat the metal to obtain a metal-coated graphene composite powder;

[0048] B, the metal-coated graphene composite powder and the metal powder are mixed by ball milling to obtain the metal-coated graphene composite powder / metal mixed powder;

[0049] c adopt the powder metallurgy warm-pressing process to warm-press the metal-coated graphene / metal mixed powder, sinter, and process the composite material by extrusion, forging and rolling to obtain the metal-coated Graphene-reinforced metal matrix composites;

[0050] The in-situ reduction of coated metal on the surface of graphene comprises the following steps:

[0051] a powdery graphene is pressed into sheets, wherein the thickness of the sheet is 0.05cm;

[0052] b. Use the sheet press...

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Abstract

The invention discloses a preparation method for metal-clad graphene reinforced metal matrix composites. The preparation method comprises the following steps that powder graphene is subjected to in-situ reduction and clad with metal to obtain metal-clad graphene composite powder, and then the metal-clad graphene composite powder and metal power are subjected to ball milling, and mixed to obtain metal-clad graphene / metal mixed powder; and the metal-clad graphene / metal mixed powder is subjected to warm compaction, molding and sintering with a power metallurgy warm compaction technology, and composites are machined and formed through extrusion, forging and pressing, rolling and other technologies. According to the preparation method, through metallization modification of the graphene surface,the wettability of the composites with metal matrix is improved, and the composites are liable to disperse in the metal matrix as reinforcements so that the mechanical properties of the metal are improved; and the preparation method is simple and has broad application prospects.

Description

technical field [0001] The invention relates to a method for preparing a metal-coated graphene-reinforced metal matrix composite material, and belongs to the technical field of composite material preparation. . technical background [0002] With the continuous development of aerospace and automobile manufacturing technology, lightweight, high-strength metal matrix composites have received extensive attention and research. As a lightweight material with excellent mechanical, electrical, and thermal properties, carbon nanomaterials have been widely used in metal matrix composites, catalysis, and energy in recent years. Among them, graphene is a new type of two-dimensional planar carbonaceous nanomaterial discovered and synthesized in recent years, with unparalleled high electron mobility (~200000cm 2 / V·s), thermal conductivity (~5000W / m·K), Young's modulus (1100GPa) and breaking strength (125GPa), exhibiting excellent electrical, thermal and mechanical properties. Therefor...

Claims

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Application Information

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IPC IPC(8): C22C1/05C22C1/10B22F1/02B22F3/14B22F3/10C23C18/31
CPCC22C1/05C23C18/31B22F3/1017B22F3/14B22F2003/145B22F2998/10B22F1/17B22F3/24
Inventor 方东鲍瑞易健宏李秀娟
Owner KUNMING UNIV OF SCI & TECH
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