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Short carbon fiber composite graphene reinforced copper base wear resistant material and preparation method thereof

A technology of composite graphene and short carbon fibers, applied in the field of metal matrix composite materials, can solve the problem of uneven dispersion of short carbon fibers and graphene, and achieve the effects of reasonable component content, excellent wear resistance, and good dispersion uniformity

Active Publication Date: 2016-05-04
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention aims to solve the problem of uneven dispersion of short carbon fibers and graphene in the matrix by selecting short carbon fibers and graphene with excellent wear resistance as reinforcements, and obtains Good wear resistance of copper-based composite materials, thereby providing a short carbon fiber composite graphene reinforced copper-based wear-resistant material, another purpose of the present invention is to provide a preparation method for the wear-resistant material

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  • Short carbon fiber composite graphene reinforced copper base wear resistant material and preparation method thereof
  • Short carbon fiber composite graphene reinforced copper base wear resistant material and preparation method thereof
  • Short carbon fiber composite graphene reinforced copper base wear resistant material and preparation method thereof

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Embodiment 1

[0026] Present embodiment is example with producing 0.5wt% short carbon fiber composite 2.5wt% graphene reinforced copper-based composite material (300 grams), and this composite material contains the component of following percentage by weight: short carbon fiber 0.5wt%, graphene 2.5wt% , the balance being Cu.

[0027] The preparation method of the short carbon fiber composite graphene reinforced copper-based wear-resistant material is as follows:

[0028] (1) Preparation of composite material mixed powder: Measure 420 mL of graphene oxide aqueous solution with a concentration of 18 mg / mL, and add short carbon fibers of 1 to 2 mm to the graphene oxide aqueous solution under the condition of electric stirring at a speed of 250 r / min 1.5g, after stirring for 2.5h, add 13.84mL of hydrazine hydrate solution with a mass fraction of 80%; then add 291g of Cu powder with a particle size of 5–20μm, and stir for 3h to make it into a slurry to obtain a composite material Mix the powder...

Embodiment 2

[0032] Present embodiment is example with producing 1.0wt% short carbon fiber composite 2.5wt% graphene strengthened copper matrix composite material (300 grams), and this composite material contains the component of following percentage by weight: short carbon fiber 1.0wt%, graphene 2.5wt% , the balance being Cu.

[0033] The preparation method of the short carbon fiber composite graphene reinforced copper-based wear-resistant material is as follows:

[0034] (1) Preparation of composite material mixed powder: Measure 420 mL of graphene oxide aqueous solution with a concentration of 18 mg / mL, and add 1 to 2 mm short carbon fibers to the graphene oxide aqueous solution under the condition of electric stirring at a rotational speed of 300 r / min 3.0g, after stirring for 3 hours, add 9.22mL of hydrazine hydrate solution with a mass fraction of 80%; then add 289.5g of Cu powder with a particle size of 5–20μm, and stir for 3 hours to make it into a slurry to obtain a composite mate...

Embodiment 3

[0038] Present embodiment is example with producing 1.5wt% short carbon fiber composite 2.5wt% graphene strengthened copper matrix composite material (300 grams), and this composite material contains the component of following percentage by weight: short carbon fiber 1.5wt%, graphene 2.5wt% , the balance being Cu.

[0039] The preparation method of the short carbon fiber composite graphene reinforced copper-based wear-resistant material is as follows:

[0040] (1) Preparation of composite material mixed powder: Measure 420 mL of graphene oxide aqueous solution with a concentration of 18 mg / mL, and add 1 to 2 mm short carbon fibers to the graphene oxide aqueous solution under the condition of electric stirring at a rotational speed of 300 r / min 4.5g, after stirring for 3 hours, add 9.22mL of hydrazine hydrate solution with a mass fraction of 80%; then add 288g of Cu powder with a particle size of 5–20μm, and stir for 3 hours to make it into a slurry to obtain a composite materi...

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Abstract

The invention discloses a short carbon fiber composite graphene reinforced copper base wear resistant material and a preparation method thereof, solves the problem of nonuniform dispersion of short carbon fibers and graphene in a basal body, and obtains excellent wear resistance of a copper base composite material. The short carbon fiber composite graphene reinforced copper base wear resistant material comprises the following chemical components in percentage by weight: 0.5-3.0 wt% of short carbon fibers, 1.0-4.0 wt% of graphene, and the balance of Cu. The preparation method of the short carbon fiber composite graphene reinforced copper base wear resistant material comprises two steps of preparation of composite material mixed powder and sintering of the composite material. The graphene / copper base composite material is simple in production process; the productivity is improved; the production cost is reduced; and the prepared composite material is compact in structure, low in friction coefficient and excellent in wear resistance.

Description

technical field [0001] The invention belongs to the field of metal-based composite materials, and in particular relates to a short carbon fiber composite graphene-reinforced copper-based wear-resistant material and a preparation method thereof. Background technique [0002] Copper-based composite materials refer to the introduction of reinforcements into the copper and copper alloy matrix, which can improve the yield and tensile strength at room temperature and high temperature while maintaining the toughness of the matrix material, and improve fatigue strength, elastic modulus, wear resistance and other properties. , reduce the thermal expansion coefficient of the base material, and make up for the lack of performance of copper and copper alloys to a large extent. As a reinforcement material, carbon fiber has a variety of excellent performance characteristics, such as: low specific gravity, high strength and high modulus; friction resistance, corrosion resistance and fatigu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/05C22C1/10C22C47/14C22C49/02C22C49/14C22C101/10
CPCC22C1/0425C22C1/05C22C1/10C22C9/00C22C47/14C22C49/02C22C49/14
Inventor 张新疆张本国陈勇晁月雨
Owner YANCHENG INST OF TECH