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Carbon fiber reinforced aluminum-based composite material and preparation method thereof

A technology for strengthening aluminum-based and composite materials, applied in the field of metallurgical composite materials, can solve the problems of low tensile strength and yield strength, low hardness, uneven particle distribution, etc., and achieve enhanced tensile strength and yield strength, high hardness , the effect of uniform particle distribution

Active Publication Date: 2015-02-04
广州贵宇光电材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the particle distribution of the aluminum-based composite material in the prior art is not uniform, and the mesh size is large, so the hardness is low, and its tensile strength and yield strength are not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Carbon fiber reinforced aluminum matrix composite material, containing the following components in mass percentage: 5% of graphite powder with a particle size of ≤120μm, 8% of cobalt powder with a particle size of ≤85μm, 5.5% of aluminum sulfide with a particle size of ≤100μm, and zinc oxide with a particle size of ≤75μm 8%, 4% iron oxide with a particle size of ≤40 μm, 3% of sodium carboxymethyl cellulose with a particle size of ≤30 μm, 12% of silicon carbide with a particle size of ≤25 μm, and the rest is aluminum powder with a particle size of ≤60 μm.

[0022] The specific gravity of silicon carbide is 3.23-3.24, and the microhardness is 2840-2900kg / mm 2 .

[0023] The preparation method of the above-mentioned carbon fiber reinforced aluminum matrix composite material comprises the following steps:

[0024] (1) After mixing graphite powder, cobalt powder, aluminum sulfide, zinc oxide, iron oxide, sodium carboxymethyl cellulose, silicon carbide, and aluminum powder, ...

Embodiment 2

[0031] Carbon fiber reinforced aluminum matrix composite material, containing the following components in mass percentage: 1% of graphite powder with a particle size of ≤120 μm, 4% of cobalt powder with a particle size of ≤85 μm, 5% of aluminum sulfide with a particle size of ≤100 μm, and zinc oxide with a particle size of ≤75 μm 7%, 2% iron oxide with a particle size of ≤40 μm, 1% of sodium carboxymethyl cellulose with a particle size of ≤30 μm, 4% of silicon carbide with a particle size of ≤25 μm, and the rest is aluminum powder with a particle size of ≤60 μm.

[0032] The specific gravity of silicon carbide is 3.23-3.24, and the microhardness is 2840-2900kg / mm 2 .

[0033] The preparation method of the above-mentioned carbon fiber reinforced aluminum matrix composite material comprises the following steps:

[0034] (1) After mixing graphite powder, cobalt powder, aluminum sulfide, zinc oxide, iron oxide, sodium carboxymethyl cellulose, silicon carbide, and aluminum powder,...

Embodiment 3

[0041] Carbon fiber reinforced aluminum matrix composite material, containing the following components in mass percentage: 10% of graphite powder with a particle size of ≤120 μm, 9% of cobalt powder with a particle size of ≤85 μm, 6% of aluminum sulfide with a particle size of ≤100 μm, and zinc oxide with a particle size of ≤75 μm 9%, 6% iron oxide with a particle size of ≤40 μm, 5% of sodium carboxymethyl cellulose with a particle size of ≤30 μm, 20% of silicon carbide with a particle size of ≤25 μm, and the rest is aluminum powder with a particle size of ≤60 μm.

[0042] The specific gravity of silicon carbide is 3.23-3.24, and the microhardness is 2840-2900kg / mm 2 .

[0043] The preparation method of the above-mentioned carbon fiber reinforced aluminum matrix composite material comprises the following steps:

[0044] (1) After mixing graphite powder, cobalt powder, aluminum sulfide, zinc oxide, iron oxide, sodium carboxymethyl cellulose, silicon carbide, and aluminum powde...

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Abstract

The invention discloses a carbon fiber reinforced aluminum-based composite material and a preparation method thereof. The composite material comprises the following components in percentage by mass: 1-10% of graphite powder with grain size not greater than 120 mu m, 4-9% of cobalt powder with grain size not greater than 85 mu m, 5-6% of aluminum sulfide with grain size not greater than 100 mu m, 7-9% of zinc oxide with grain size not greater than 75 mu m, 2-6% of iron oxide with grain size not greater than 40 mu m, 1-5% of sodium carboxymethyl cellulose with grain size not greater than 30 mu m, 4-20% of silicon carbide with grain size not greater than 25 mu m, and the balance of aluminum powder with grain size not greater than 60 mu m. The preparation method of the carbon fiber reinforced aluminum-based composite material comprises the following steps: uniformly mixing the components, enabling the mixed components to pass through a 200-mesh sieve specified in GB6003, and then, dry-mixing for at least 1-2 hours; carrying out compression molding under pressure of 700-800 MPa; sintering at 800-1200 DEG C, wherein the sintering pressure is 2-3MPa, the heat preserving time is 30-40 minutes; and cooling. The silicon carbide is added to greatly refine a matrix structure, so that the particle size distribution is uniform, the tensile strength and the yield strength are strengthened, and the hardness is high.

Description

technical field [0001] The invention belongs to the field of metallurgical composite materials, in particular to a carbon fiber reinforced aluminum-based composite material and a preparation method thereof. Background technique [0002] Powder metallurgy is a process technology for producing metal or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, forming and sintering to manufacture metal materials, composite materials and various types of products. Powder metallurgy has unique chemical composition and mechanical and physical properties, which cannot be obtained by traditional casting methods. Powder metallurgy technology can minimize the segregation of alloy components and eliminate coarse and uneven casting structures. [0003] Aluminum and its alloys are suitable as the matrix of metal matrix composites. The reinforcement of aluminum matrix composites can be continuous fibers, short fibers, or particles from spherical to irregul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22C21/00C22C47/14C22C49/14C22C101/10
Inventor 刘莉王爽邱晶刘晓东黄明明
Owner 广州贵宇光电材料科技有限公司
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