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Carbon fiber reinforced metal ceramic base composite material

A composite material and metal ceramic technology, applied in the field of carbon fiber reinforced metal ceramic composite materials, can solve the problems of affecting carbon fiber reinforcement, uneven distribution of carbon fibers, small elastic modulus of materials, etc., and achieves short preparation period, adjustable density, Overcome the effect of brittleness

Inactive Publication Date: 2018-08-24
SUZHOU HONGJIU AVIATION THERMAL MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention still uses the mixing of chopped carbon fiber and metal magnesium melt, which will lead to uneven distribution of carbon fiber, and no interface layer is prepared to protect carbon fiber, and the damage of carbon fiber is serious, which affects the reinforcing effect of carbon fiber
[0008] The above-mentioned carbon fiber reinforced metal-ceramic composite material has high strength, but high brittleness, poor impact resistance, low reliability, and at the same time, the material has a small elastic modulus and poor deformation resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A carbon fiber reinforced aluminum alloy metal silicon carbide ceramic composite material, which is composed of a carbon fiber prefabricated body, a pyrolytic carbon interface, a SiC matrix and an aluminum alloy metal matrix; the SiC matrix is ​​filled in the pores of the carbon fiber prefabricated body, and the microscopic discrete distribution, SiC There are pores and microporous channels in the matrix to form a carbon fiber reinforced SiC porous composite material. The metal matrix is ​​filled in the pores of the carbon fiber reinforced SiC porous composite material to form a continuous and semi-discontinuous network state. Some networks penetrate and some networks do not penetrate carbon fiber reinforced SiC. The upper and lower surfaces of the porous composite material form a carbon fiber-reinforced cermet composite material; the carbon fiber preform is formed by weaving carbon fibers, and the carbon fiber volume fraction is 38%; the thickness of the pyrolytic carbon...

Embodiment 2

[0028] A carbon fiber reinforced copper alloy metal silicon carbide ceramic composite material is composed of a carbon fiber preform, a pyrolytic carbon interface, a SiC matrix and a metal matrix; it is characterized in that the pyrolytic carbon interface is coated on the surface of the carbon fiber in the carbon fiber preform, showing In the annular surrounding state, the SiC matrix is ​​filled in the pores of the carbon fiber prefabricated body, which is distributed microscopically. There are pores and micropore channels in the SiC matrix, forming a carbon fiber reinforced SiC porous composite material, and the metal matrix is ​​filled in the pores of the carbon fiber reinforced SiC porous composite material , form a continuous or semi-discontinuous network state, part of the network penetrates, and part of the network does not penetrate the upper and lower surfaces of the carbon fiber reinforced SiC porous composite material, forming a carbon fiber reinforced cermet composite...

Embodiment 3

[0035] A carbon fiber-reinforced tin alloy cermet composite material is composed of a carbon fiber prefabricated body, a BN interface, a matrix and a tin alloy metal matrix; it is characterized in that the BN interface is coated on the surface of the carbon fiber in the carbon fiber prefabricated body, which is surrounded by a ring, and the matrix Filled in the pores of the carbon fiber prefabricated body, distributed microscopically, the tin alloy metal matrix is ​​filled in the pores of the carbon fiber reinforced porous composite material, forming a continuous and semi-discontinuous network state, and part of the network runs through the upper and lower surfaces of the carbon fiber reinforced porous composite material, Forming a carbon fiber reinforced cermet composite material; the carbon fiber prefabricated body is formed by weaving carbon fibers, and the carbon fiber volume fraction is 35%; the thickness of the BN interface is 3 μm; the volume fraction of the matrix in the...

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Abstract

The invention discloses a carbon fiber reinforced metal ceramic base composite material. The carbon fiber reinforced metal ceramic base composite material consists of a carbon fiber prefabricated body, an interface layer, a ceramic basal body and a metal basal body; metal is one of an aluminum alloy, a magnesium alloy, a copper alloy and a tin alloy; ceramic is SiC; the density of the composite material is 1.8-3.8 g / cm3; and the invention further discloses a method for preparing different alloy ceramic composite materials. The composite material has the advantages of short preparation period and adjustable density, overcomes the brittleness and low density of the ceramic, and can meet the demands on the ceramic base composite materials in multiple fields.

Description

technical field [0001] The invention relates to a metal ceramic composite material, in particular to a carbon fiber reinforced metal ceramic composite material. Background technique [0002] Metal-ceramic composite materials have high specific strength and specific stiffness, wear resistance, low thermal expansion coefficient, good dimensional stability and thermal conductivity, and have been widely used in aerospace, military, automotive, electronics and other industries. At present, metal-ceramic composite materials are mainly prepared by pressureless infiltration sintering, hot-pressing sintering, plasma sintering and other processes. Due to the low compatibility of the interface between metal and ceramic particles, and the difficulty of uniform distribution of ceramic particles into the metal, the interior of the material is unavoidable. The existence of defects and microcracks leads to insufficient fracture toughness and impact strength of metal-ceramic composite materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/08C22C47/04C22C47/06C22C101/10C22C121/02
CPCC22C47/08C22C47/04C22C47/064C22C47/066
Inventor 陈照峰廖家豪
Owner SUZHOU HONGJIU AVIATION THERMAL MATERIALS TECH CO LTD
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