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C60 reinforced Al-based composite material and preparation method thereof

A composite material, C60 technology, which is applied in the field of C60 reinforced Al-based composite materials and its preparation, can solve the problems of carbon nanotube agglomeration and the ineffective reinforcement effect of aluminum-based composite materials, and achieves comprehensive performance improvement, wide industrial application prospects, simple craftsmanship

Inactive Publication Date: 2017-09-15
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the Chinese invention patents with publication numbers CN103602843A, CN1546695A, CN1730688A, and CN101613079A all introduced the preparation technology of carbon nanotube-reinforced aluminum-based composite materials. The reinforcement effect on aluminum matrix composites is not obvious
The main problem is that carbon nanotube agglomeration is more obvious in carbon nanotube reinforced aluminum matrix composites.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Firstly, C with a mass ratio of 99.1:0.9 60 Mix with Al powder, add 1.0ml of ethanol and use a ball mill to mix for 2.0 hours. (2) The mixed sample after ball milling was placed in a vacuum drying oven, and dried at 55° C. for 0.6 h. (3) Then put C 60 / Al composite powder is molded at 430°C, the pressure is 680-700MPa, and the pressure is maintained at this pressing pressure for 20 minutes. (4) Finally, put the formed billet into a heating device protected by an inert gas Ar gas for sintering, the sintering temperature is 530°C, and the sintering time is 1.6h. After testing, its density reaches 99.4%, and its tensile strength reaches 172.3MPa, which is 53.28% higher than that of the matrix.

Embodiment 2

[0028] (1) First mix C with a certain mass ratio (98.3: 1.7) 60 And Al powder, add a small amount of ethanol (2.0ml) and use a ball mill to mix for 2.5 hours. (2) Next, place the mixed sample after ball milling in a vacuum drying oven, and dry it at 68° C. for 0.9 h. (3) Then put C 60 / Al composite powder is molded at 460°C, the pressure is between 680-700MPa, and the pressure is maintained at this pressing pressure for 30min. (4) Finally, put the formed billet into a heating device protected by an inert gas Ar gas for sintering, the sintering temperature is 560°C, and the sintering time is 2.0h. After testing, its density reaches 99.5%, and its tensile strength reaches 181.5MPa, which is 55.65% higher than that of the matrix.

Embodiment 3

[0030] (1) First mix C with a certain mass ratio (98.8: 1.2) 60 And Al powder, add a small amount of ethanol (3.0ml) and use a ball mill to mix for 3.0 hours. (2) Next, place the mixed sample after ball milling in a vacuum drying oven, and dry it at 75°C for 1.5h. (3) Then put C 60 / Al composite powder is molded at 480°C, the pressure is between 700MPa and 800MPa, and the pressure is maintained at this pressing pressure for 60min. (4) Finally, put the formed billet into a heating device with inert gas Ar gas protection for sintering, the sintering temperature is 600°C, and the sintering time is 4.0h. After testing, its density reaches 99.5%, and its tensile strength reaches 178.6MPa, which is 54.93% higher than that of the matrix.

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Abstract

The invention discloses a C60 reinforced Al-based composite material and a preparation method thereof. The preparation method comprises the following steps that (1) C60 and Al powder are mixed firstly, and mixing is conducted through a ball mill after ethanol is added; (2) a mixed sample after ball milling is placed into a vacuum drying box to be dried; (3) C60 / Al composite powder is formed under the high temperature and high pressure, and the pressure is held for a period of time under the pressing pressure; and (4) finally, a formed blank is placed into a heating device with inert gas AR protection to be sintered, and the C60 reinforced Al-based composite material with excellent comprehensive performance is finally prepared. Application and popularization of the C60 reinforced Al-based composite material in the electronics industry are facilitated.

Description

technical field [0001] The present invention relates to a C 60 The invention relates to a reinforced Al-based composite material and a preparation method thereof, belonging to the field of metal materials. Background technique [0002] Aluminum matrix composites have the advantages of low density, strong corrosion resistance, excellent electrical and thermal conductivity, and good processability, and have become the mainstream of current metal matrix composites research. With the development of automotive and aerospace fields, especially in harsh environments such as space and ionizing radiation, metal matrix composites have higher requirements for specific strength, specific modulus, corrosion resistance, electrical and thermal conductivity, etc. Traditional ceramics Fiber and granular reinforcements have been unable to meet the material requirements. [0003] In the past few decades, researchers have made great efforts to improve the traditional process of aluminum alloy...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/05
CPCC22C21/00C22C1/0416C22C1/05C22C26/00C22C2026/001
Inventor 孙凤儿刘和平徐宏毛红奎杨晓禹
Owner ZHONGBEI UNIV
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