Method for preparing graphene reinforced copper base composite material

A copper-based composite material and graphene technology, applied in the field of preparing graphene-reinforced copper-based composite materials, can solve the problems of complex process, high cost, poor graphene dispersibility, etc., and achieve uniform dispersion, improved tensile strength, and controlled ball milling. effect of time

Inactive Publication Date: 2016-08-03
HARBIN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problems of poor graphene dispersion, high cost and complicated process in the existing preparation of graphene-reinforced copper-based composite materials, and provide a preparation method of graphene-reinforced copper-based composite materials

Method used

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  • Method for preparing graphene reinforced copper base composite material
  • Method for preparing graphene reinforced copper base composite material
  • Method for preparing graphene reinforced copper base composite material

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specific Embodiment approach 1

[0016] Specific embodiment one: this embodiment is a kind of method for preparing graphene-reinforced copper-based composite material, specifically carries out according to the following steps:

[0017] 1. Preparation of graphene oxide: add 1g of graphite powder and 1g of sodium nitrate to the Erlenmeyer flask containing 46mL of concentrated sulfuric acid under the condition of ice-water bath, mix and stir for 20min under the condition of ice-water bath; Add 6g of potassium permanganate and stir for 40 minutes to obtain a green-purple mixed solution. Keep the green-purple mixed solution at a temperature of 30°C to 40°C for 1 hour, and then add it at a temperature of 30°C to 40°C. Incubate 40mL of distilled water at a temperature of 85°C to 95°C for 30 minutes to obtain a brown mixed solution. Add 100mL of distilled water and 6mL of hydrogen peroxide to the brown mixed solution at room temperature to obtain a bright yellow mixed solution. Then repeatedly wash the bright yellow ...

specific Embodiment approach 2

[0020] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: the graphene oxide obtained in step 1 is weighed in step 2 to be 0.5 g. Others are the same as the first embodiment.

specific Embodiment approach 3

[0021] Embodiment 3: The difference between this embodiment and Embodiments 1 to 2 is that in step 2, the ultrasonic frequency is 10 kHz and lasts for 1 hour. Others are the same as the first embodiment.

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Abstract

The invention relates to a method for preparing a graphene reinforced copper base composite material, and aims to solve the problems of weak graphene dispersibility, high cost and complex process in a traditional method for preparing the graphene reinforced copper base composite material. The method uses oxide graphene as a reinforcing front body; the prepared oxide graphene and copper powder are ultrasonically mixed in ethanol solution; and the oxide graphene and the copper powder are uniformly dispersed by using a low-cost ball milling technology. Finally, the vacuum hot pressed sintering is adopted to prepare the graphene reinforced copper base composite material. The composite material, prepared by the method, has the advantages of good graphene dispersibility, simple and efficiency preparation method and easiness in realization of large-scale production.

Description

technical field [0001] The invention relates to a method for preparing a graphene-reinforced copper-based composite material. Background technique [0002] Copper and its alloy materials have the advantages of good electrical and thermal conductivity and easy forming, and have been widely used in aerospace, transportation, machinery industry, energy, chemical industry, power electronics and other fields. With the development of modern science and technology, traditional copper and copper alloys have low strength and poor high-temperature performance and can no longer meet the performance requirements of practical applications. By adding high-strength second-phase particles to the copper matrix, it has more excellent properties. The comprehensive properties can effectively expand the application fields of copper and copper alloys. The added second phase mainly includes oxides, nitrides and new carbon materials. [0003] Graphene is a carbon atom with sp 2 The hexagonal hon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22C9/00B22F3/14B22F9/04
CPCB22F3/14B22F9/04B22F2009/043B22F2998/10C22C1/05C22C9/00
Inventor 岳红彦姚龙辉高鑫林轩宇王宝郭二军
Owner HARBIN UNIV OF SCI & TECH
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