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A kind of graphene/nickel-based composite material and preparation method thereof

A composite material and graphene technology, which is applied in the field of graphene-enhanced nickel-based composite materials and its preparation, can solve the problems of graphene-enhanced nickel-based composite materials that have not yet been seen, and achieve the effect of preventing material oxidation, avoiding agglomeration, and excellent performance

Active Publication Date: 2018-01-05
SHANGHAI HIWAVE COMPOSITE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] So far, there is no technology to prepare graphene-reinforced nickel-based composites by powder metallurgy.

Method used

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  • A kind of graphene/nickel-based composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The basic operation steps of present embodiment 1 preparation graphene / copper composite material are as follows:

[0040] Ⅰ) Material composition of graphene / nickel composites

[0041]The material components of the graphene / copper composite material are mainly metal nickel and graphene, wherein the mass fraction of nickel is 99.5wt%; the mass fraction of graphene is 0.5wt%. The raw material of graphene is graphene oxide.

[0042] Ⅱ) Basic steps for preparing graphene / nickel composites (see attached figure 1 )

[0043] 1) taking by weighing 50g of copper-nickel alloy powder and 20ml concentration is the graphene oxide dispersion of 0.015g / ml;

[0044] 2) According to the ball-to-material ratio of 15:1, put grinding balls, nickel powder, graphene oxide dispersion liquid and alcohol into a ball mill tank, and ball mill for 5 hours. As the ball milling progresses, the nickel powder and graphene oxide are fully mixed to obtain a graphene oxide / nickel alcohol mixture.

...

Embodiment 2

[0050] The difference from Example 1 is that: this Example 2 adds a hot extrusion process to obtain a graphene / nickel composite wire.

[0051] The basic operation steps of present embodiment 2 preparation graphene / copper composite material are as follows:

[0052] Ⅰ) Material composition of graphene / nickel composites

[0053] The material components of the graphene / copper composite material are mainly metallic nickel and graphene, wherein the raw materials and contents of metallic nickel and graphene are the same as those in Example 1.

[0054] Ⅱ) Basic steps for preparing graphene / nickel composites (see attached figure 1 )

[0055] 1) taking by weighing 50g of copper-nickel alloy powder and 20ml concentration is the graphene oxide dispersion of 0.015g / ml;

[0056] 2) According to the ball-to-material ratio of 15:1, put grinding balls, nickel powder, graphene oxide dispersion liquid and alcohol into a ball mill tank, and ball mill for 5 hours. As the ball milling progresse...

Embodiment 3

[0063] The difference from Example 2 is that in this example, the mass ratio of metallic nickel and graphene in the composite material is changed, and the process parameters are adjusted according to the formula.

[0064] The basic operation steps of present embodiment 3 preparation graphene / copper composite material are as follows:

[0065] Ⅰ) Material composition of graphene / nickel composites

[0066] The material composition of the graphene / copper composite material is mainly metal nickel and graphene, wherein the mass fraction of nickel is 95wt%; the mass fraction of graphene is 5wt%. The raw material of graphene is graphene oxide.

[0067] Ⅱ) Basic steps for preparing graphene / nickel composites (see attached figure 1 )

[0068] 1) taking by weighing 50g of copper-nickel alloy powder and 30ml concentration is the graphene oxide dispersion of 0.088g / ml;

[0069] 2) According to the ball-to-material ratio of 20:1, put grinding balls, nickel powder, graphene oxide dispers...

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Abstract

The invention provides a graphene / nickel composite material and a preparation method thereof. According to the preparation method of the graphene / nickel composite material, nickel or nickel alloy powder and oxidized graphene are subjected to mechanical ball milling and are mixed, and ethyl alcohol is added during mechanical ball milling for wet milling so that oxidization of the nickel powder can be avoided; and oxidized graphene / copper composite powder is obtained preliminarily through the ball milling process, and then a graphene / copper composite block material and a graphene / copper composite wire are obtained through the techniques such as reduction, powder metallurgy and hot extrusion. According to the composite material, graphene is evenly distributed, the interface bonding of a matrix and a reinforcement body is good, and the graphene / nickel composite material has excellent physical performance. According to the graphene / nickel composite material and the preparation method thereof, the technique is simple, the process can be controlled easily, and large-scale production and application can be achieved easily.

Description

technical field [0001] The invention belongs to the technical field of metal-based composite materials and their preparation, and specifically relates to a graphene-reinforced nickel-based composite material and a preparation method thereof. Background technique [0002] Nickel and nickel alloys have good mechanical, physical and chemical properties. Nickel-based composite materials have irreplaceable uses in energy development, chemical industry, electronics, especially in the field of aerospace. With the increasing demand of the aviation industry for the performance of materials, nickel-based composite materials are also being continuously developed and used, gradually replacing part of the nickel-based superalloy in the aviation industry. [0003] Nickel-based composites are divided into discontinuous phase and continuous phase-reinforced nickel-based composites according to the type of reinforcement. Discontinuous phase reinforcement includes short fiber reinforcement, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C1/05C22C19/03
CPCC22C1/05C22C1/10C22C1/1084C22C19/03
Inventor 王鹏鹏毛琳陈乐生沈敏华
Owner SHANGHAI HIWAVE COMPOSITE MATERIALS CO LTD
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