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Carbon fabric integer fabric carbon-copper composite material and method of manufacturing thereof

A composite material and carbon fiber technology, which is applied in the field of carbon fiber integral fabric/carbon-copper composite material and its preparation, can solve the problems of poor wettability and achieve high conductivity, good conductivity and low cost

Inactive Publication Date: 2008-01-23
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wettability of copper to carbon materials is poor. In order to infiltrate copper into the carbon / carbon composite body, the wettability between copper and carbon / carbon composite body must be improved.

Method used

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  • Carbon fabric integer fabric carbon-copper composite material and method of manufacturing thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Needle-punched integral felt made of polypropylene nitrile carbon fiber, densified to 0.7g / cm by chemical vapor infiltration 3 The porous carbon composite green body was tempered at 2500°C; an infiltration agent with a Cu / Ti mass ratio of 9.5:0.5 was prepared; the carbon green body was embedded with the prepared infiltration agent, and kept at 1100°C for 30 minutes under vacuum conditions , and the carbon fiber monolithic fabric / carbon-copper composite material was prepared.

[0020] Its main performance indicators are shown in the table below:

[0021] density

Embodiment 2

[0023] Needle-punched integral felt made of polypropylene nitrile carbon fiber, densified to 1.35g / cm by chemical vapor infiltration 3 The porous carbon composite green body was tempered at 2300°C; an infiltration agent with a mass ratio of Cu / Ti of 9:1 was prepared; the carbon green body was embedded with the prepared infiltration agent, and kept at 1300°C for 30 minutes under vacuum conditions , and the carbon fiber integral fabric / carbon-copper composite material was prepared.

[0024] Its main performance indicators are shown in the table below:

[0025] density

Embodiment 3

[0027] Needle-punched integral felt made of polypropylene nitrile carbon fiber, densified to 1.5g / cm by impregnation and carbonization 3 The porous carbon composite green body was tempered at 2000°C; an infiltration agent with a Cu / Ti mass ratio of 7.5:2.5 was prepared; the carbon green body was embedded with the prepared infiltration agent, and kept at 1450°C for 30 minutes under vacuum conditions , and the carbon fiber monolithic fabric / carbon-copper composite material was prepared.

[0028] Its main performance indicators are shown in the table below:

[0029] density

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Abstract

The invention relates to a carbon fiber composite fabric or a carbon-copper compound material and the method thereof. The invention takes a porous carbon body prepared by the carbon fiber composite fabric densification as the prefabricated part, and the copper alloy is infiltrated in the pore of the prefabricated part. By adoption the method of no-pressure melt infiltration, the invention features the simple process, low cost, and easy realization of the industrialization, and is capable to prepare the carbon fiber composite fabric or the carbon-copper compound material with high electrical conductivity, outstanding self lubrication wear resistance performance, excellent hot-proof and anti-vibration and ablation resistance performance.

Description

technical field [0001] The invention relates to the field of metal matrix composite materials, in particular to a carbon fiber integral fabric / carbon-copper composite material and a preparation method. Background technique [0002] Carbon / copper composite material, as a metal matrix composite material integrating structure and function, is widely used in various industrial sectors because of its excellent electrical conductivity, thermal conductivity, wear reduction and wear resistance, such as friction materials, oil-containing Bearings, electrical contact materials, conductive materials and mechanical parts materials, etc. Especially in recent years, with the development of railway high-speed and electrification, sliding conductive materials have developed rapidly. Carbon / copper composite materials have become the first choice for modern sliding conductive materials because of their excellent electrical conductivity, wear reduction and wear resistance, and have broad appl...

Claims

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Application Information

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IPC IPC(8): C22C49/00C22C49/02C22C49/14C22C47/06C22C47/08
Inventor 冉丽萍杨琳易振华易茂中
Owner CENT SOUTH UNIV
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