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TiB2 particle and carbon nano tube hybrid reinforced copper-based composite material and preparation method thereof

A copper-based composite material, carbon nanotube technology, applied in metal material coating process, liquid chemical plating, coating and other directions, can solve problems such as poor comprehensive performance, achieve high tissue density, good application prospects, can be good operability

Active Publication Date: 2018-02-23
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of TiB 2 A copper-based composite material reinforced by a mixture of particles and carbon nanotubes, thereby solving the problem of poor comprehensive performance of existing copper-based composite materials

Method used

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  • TiB2 particle and carbon nano tube hybrid reinforced copper-based composite material and preparation method thereof
  • TiB2 particle and carbon nano tube hybrid reinforced copper-based composite material and preparation method thereof

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Experimental program
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Embodiment 1

[0031] TiB of this embodiment 2 A copper-based composite reinforced by a mixture of particles and carbon nanotubes, made of raw materials composed of the following volume percentages: TiB 2 : 2%, copper-plated carbon nanotubes: 8%, copper powder balance; TiB 2 The particle size of the particles is 100nm; the aspect ratio of the copper-plated carbon nanotubes is 20; the particle size of the copper powder is 50μm.

[0032] The preparation method of the copper-based composite material of this embodiment includes the following steps:

[0033] 1) Purification of carbon nanotubes: Concentrated sulfuric acid with a mass fraction of 95% and concentrated nitric acid with a mass fraction of 65% are prepared into a mixed acid solution at a volume ratio of 3:1, and the carbon nanotubes are added to the mixed acid solution at a speed of 400r / min, the temperature is 60 ℃, purification for 3 hours, after standing still, filtering, washing with deionized water to neutral, to obtain purified carbon...

Embodiment 2

[0047] TiB of this embodiment 2 A copper-based composite reinforced by a mixture of particles and carbon nanotubes, made of raw materials composed of the following volume percentages: TiB 2 : 4%, copper-plated carbon nanotubes: 4%, copper powder balance; TiB 2 The particle size of the particles is 10 μm; the aspect ratio of the copper-plated carbon nanotubes is 200; the particle size of the copper powder is 75 μm.

[0048] The preparation method of the copper-based composite material of this embodiment includes the following steps:

[0049] 1) Purification of carbon nanotubes: Concentrated sulfuric acid with a mass fraction of 97% and concentrated nitric acid with a mass fraction of 67% are formulated into a mixed acid solution at a volume ratio of 3:1, and the carbon nanotubes are added to the mixed acid solution at a speed of 450r / min, the temperature is 65 ℃, purified for 2.5 hours, filtered after standing, washed with deionized water to neutral, to obtain purified carbon nanotu...

Embodiment 3

[0063] TiB of this embodiment 2 A copper-based composite reinforced by a mixture of particles and carbon nanotubes, made of raw materials composed of the following volume percentages: TiB 2 : 4%, copper-plated carbon nanotubes: 1%, copper powder balance; TiB 2 The particle size of the particles is 100 μm; the aspect ratio of the copper-plated carbon nanotubes is 500; the particle size of the copper powder is 100 μm.

[0064] The preparation method of the copper-based composite material of this embodiment includes the following steps:

[0065] 1) Purification of carbon nanotubes: Concentrated sulfuric acid with a mass fraction of 98% and concentrated nitric acid with a mass fraction of 68% are formulated into a mixed acid solution at a volume ratio of 3:1, and the carbon nanotubes are added to the mixed acid solution at a speed of 450r / min, at a temperature of 70°C for 2h, filter after standing, and wash with deionized water to neutral to obtain purified carbon nanotubes;

[0066] 2)...

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Abstract

The invention relates to a TiB2 particle and carbon nano tube hybrid reinforced copper-based composite material and a preparation method thereof. The copper-based composite material is prepared from TiB2, a coppered carbon nano tube and copper powder, and the sum of the volume percent of the TiB2 in the raw material and the volume percent of the coppered carbon nano tube in the raw material is notmore than 10%. According to the copper-based composite material provided by the invention, a copper substrate is subjected to hybrid reinforced modification by adopting the TiB2 particles and the coppered carbon nano tube, the two components including the TiB2 particles and the coppered carbon nano tube exist in the copper substrate in a particle form and a whisker form correspondingly, on the basis that the self physical property parameters of the two reinforcement bodies are sufficiently achieved, complementary advantages and the coupling effect of the two reinforcement bodies can be achieved by means of the different placeholders of the two reinforcement bodies in the copper substrate, and accordingly, the purposes that synergetic enhancement of the substrate is conducted, and the comprehensive performance of the copper-based composite material is improved are achieved.

Description

Technical field [0001] The invention belongs to the field of copper-based composite materials, and specifically relates to a TiB 2 A copper-based composite material reinforced by mixing particles and carbon nanotubes and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of my country's transportation and electric power industries and the continuous improvement of technical levels, higher requirements have been put forward for the characteristics of high-strength and high-conductivity copper alloy materials, such as conductive contact contact materials and copper alloy wear resistance Pieces and brushes. Commonly used precipitation-strengthened copper alloys (such as Cu-Cr and Cu-Zr alloys, etc.), their high strength and high conductivity are obtained by the strengthening of the copper matrix by the fine dispersion precipitated after heat treatment. However, when the service temperature exceeds the temperature of precipitation ...

Claims

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Application Information

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IPC IPC(8): C22C9/00C22C32/00C22C1/05C23C18/38C23C18/18
CPCC22C1/05C22C9/00C22C32/0073C22C32/0084C23C18/1646C23C18/1889C23C18/38
Inventor 国秀花李国辉宋克兴郑晓晖冯江梁淑华周延军张彦敏张学宾赵培峰郜建新龙飞张胜利
Owner HENAN UNIV OF SCI & TECH
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