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Particle-reinforced fiber-woven composite material and preparation method thereof

A technology of fiber braiding and particle reinforcement, which is applied in the field of particle-reinforced fiber braided composite materials and its preparation, can solve the problems of fiber damage, cumbersome preparation process, and increased manufacturing cost, and achieve improved density, simplified preparation steps, and reduced The effect of stomatal defects

Pending Publication Date: 2022-01-07
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the particle introduction process is to ball mill the particles and the matrix together to prepare the matrix material of the fiber braided composite material. A few use the molten salt method and carbonization method. The preparation process is cumbersome and increases the preparation cost. The temperature of the molten salt method and carbonization method is relatively high. damage to fibers

Method used

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  • Particle-reinforced fiber-woven composite material and preparation method thereof
  • Particle-reinforced fiber-woven composite material and preparation method thereof
  • Particle-reinforced fiber-woven composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) With spherical ZrO 2 Particles are solid phase, polyvinyl alcohol is used as dispersant, and impregnated ZrO 2 Slurry, wherein the solid phase volume content is 40%;

[0033] 2) Lay the SiC fiber cloth on the graphite mold, using the ZrO2 configured in 1) 2 The slurry is evenly coated on the surface of the SiC fiber cloth, and the impregnated particle slurry is smoothed by the scraper method, and the thickness is set to 0.35mm to obtain the impregnated ZrO 2 Slurry SiC fiber cloth;

[0034] 3) In impregnated ZrO 2 Place another piece of SiC fiber cloth on the SiC fiber cloth of the slurry, and then perform ZrO 2 Slurry coating, squeegeeing, thickness setting, repeating the process of lamination and particle slurry impregnation to make ZrO-containing 2 SiC fiber stack of particles; the ZrO-containing 2 The granular SiC fiber stack was embedded in a water-absorbent resin, placed in a mold, and slowly applied a pressure of 30 MPa to the surface of the stack for pr...

Embodiment 2

[0038] 1) With spherical ZrO 2 Particles are solid phase, polyvinyl alcohol is used as dispersant, and impregnated ZrO 2 Slurry, wherein the solid phase volume content is 50%;

[0039] 2) Lay the SiC fiber cloth on the graphite mold, using the ZrO2 configured in 1) 2 The slurry is evenly coated on the surface of the SiC fiber cloth, and the impregnated particle slurry is smoothed by the scraper method, and the thickness is set to 0.4mm to obtain the impregnated ZrO 2 Slurry SiC fiber cloth;

[0040] 3) In impregnated ZrO 2 Place another piece of SiC fiber cloth on the SiC fiber cloth of the slurry, and then perform ZrO 2 Slurry coating, squeegeeing, thickness setting, repeating the process of lamination and particle slurry impregnation to make ZrO-containing 2 SiC fiber stack of particles; the ZrO-containing 2 The granular SiC fiber stack was embedded in a water-absorbing resin, placed in a mold, and a pressure of 35 MPa was slowly applied to the surface of the stack for...

Embodiment 3

[0044] 1) Using spherical SiC particles as the solid phase and polyvinyl alcohol as the dispersant, prepare impregnated SiC slurry, wherein the volume content of the solid phase is 50%;

[0045] 2) Spread the C fiber cloth on the mold, use the SiC slurry configured in 1) to evenly coat the surface of the C fiber cloth, use the scraper method to smooth the impregnated particle slurry, and set the thickness to 0.35mm to obtain the impregnated SiC Slurry C fiber cloth;

[0046] 3) Place another piece of C fiber cloth on the C fiber cloth impregnated with SiC slurry, then apply SiC slurry, squeegee, set the thickness, repeat the process of lamination and particle slurry impregnation, and make SiC particles C fiber stacking body; the C fiber stacking body containing SiC particles is embedded in a water-absorbent resin, placed in a mold, and a pressure of 35 MPa is slowly applied to the surface of the stacking body for pressing, and the pressure is maintained for 15 minutes; the mol...

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Abstract

The invention discloses a particle-reinforced fiber-woven composite material and a preparation method thereof, and relates to a fiber-woven composite material. A fiber cloth layer as a basic element is impregnated with particle slurry, a fiber cloth layer containing particle slurry is laminated on the fiber cloth layer containing particle slurry, impregnating and laminating are repeated to form a particle-containing fiber woven preform blank, an interface layer is deposited on the particle-containing fiber woven preform blank, and a ceramic matrix is densified in the preform blank containing the interface layer to form the particle reinforced fiber woven composite material. The method comprises the following steps of: (1) preparing impregnated particle slurry; (2) preparing a fiber woven preform containing particles; (3) preparing an interface layer; and (4) preparing a ceramic matrix to obtain the particle-reinforced fiber woven composite material. The uniformity of the particle-containing fiber woven preform can be improved, the pore defects in the preform can be reduced, the density can be improved, the material performance can be improved, the preparation steps can be simplified, the production energy consumption can be reduced, and the production efficiency can be improved.

Description

technical field [0001] The invention relates to the preparation of a fiber braided composite material, in particular to a particle-reinforced fiber braided composite material and a preparation method thereof. Background technique [0002] The weight reduction of aerospace vehicles can bring huge gains. For example, reducing the weight of aircraft such as rockets and missiles can increase their thrust-to-weight ratio, improve their carrying capacity, and provide technical support for my country's national defense security. At present, fiber-woven composite materials are popular in lightweight research. Fiber-woven composite materials have the advantages of high specific strength, low density, and fatigue resistance. They are widely used in various aerospace structures, especially carbon fiber-woven composite materials and carbonization. Silicon fiber has a relatively large breakthrough. The weight of carbon fiber braided composite material is only 0.2 times that of steel mat...

Claims

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Application Information

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IPC IPC(8): C04B35/80C04B35/48C04B35/622
CPCC04B35/80C04B35/48C04B35/622C04B2235/422C04B2235/483C04B2235/656C04B2235/6567C04B2235/658
Inventor 余煜玺魏永金
Owner XIAMEN UNIV
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