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High-temperature-resistant ceramic-based composite material and preparation method thereof

A technology of high-temperature resistant ceramics and composite materials, which is applied in the field of ceramic-based materials, can solve problems such as poor effects, and achieve the effects of wide application range, improved thermal shock resistance, and improved microstructure

Inactive Publication Date: 2018-11-16
合肥岑遥新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing ceramic matrix composite materials have the advantages of high temperature resistance, the effect is still not good for ultra-high temperature conditions. Therefore, it is necessary to improve the existing ceramic matrix composite materials to improve their high temperature resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In the embodiment of the present invention, a high-temperature-resistant ceramic-based composite material includes, in parts by weight, 100 parts of graphene ceramic powder, 1 part of water glass, 5 parts of modified binder, and 2 parts of water;

[0024] A method for preparing a high-temperature-resistant ceramic matrix composite material, comprising the following steps:

[0025] The first step: add water to the graphene ceramic powder and stir, then add water glass and modified binder to stir and mix together, the stirring time is 30-60 minutes, and the stirring temperature is 50-80 degrees Celsius;

[0026] The second step: send the mixed raw materials into the vacuum drying equipment for drying, the drying time is 30 minutes, the temperature is 110-120 degrees Celsius, after drying, take it out and let it stand for cooling;

[0027] Step 3: After crushing, put it into a granulator for processing to obtain a powder with a particle size of 0.04-0.08mm;

[0028] Step ...

Embodiment 2

[0037] In the embodiment of the present invention, a high temperature resistant ceramic matrix composite material comprises 125 parts of graphene ceramic powder, 1.5 parts of water glass, 6.5 parts of modified binder, and 3 parts of water in parts by weight;

[0038] A method for preparing a high-temperature-resistant ceramic matrix composite material, comprising the following steps:

[0039] The first step: add water to the graphene ceramic powder and stir, then add water glass and modified binder to stir and mix together, the stirring time is 30-60 minutes, and the stirring temperature is 50-80 degrees Celsius;

[0040] The second step: send the mixed raw materials into the vacuum drying equipment for drying, the drying time is 30 minutes, the temperature is 110-120 degrees Celsius, after drying, take it out and let it stand for cooling;

[0041] Step 3: After crushing, put it into a granulator for processing to obtain a powder with a particle size of 0.04-0.08mm;

[0042] ...

Embodiment 3

[0051] In the embodiment of the present invention, a high-temperature-resistant ceramic-based composite material includes 150 parts of graphene ceramic powder, 2 parts of water glass, 8 parts of modified binder, and 4 parts of water in parts by weight;

[0052] A method for preparing a high-temperature-resistant ceramic matrix composite material, comprising the following steps:

[0053] The first step: add water to the graphene ceramic powder and stir, then add water glass and modified binder to stir and mix together, the stirring time is 30-60 minutes, and the stirring temperature is 50-80 degrees Celsius;

[0054] The second step: send the mixed raw materials into the vacuum drying equipment for drying, the drying time is 30 minutes, the temperature is 110-120 degrees Celsius, after drying, take it out and let it stand for cooling;

[0055] Step 3: After crushing, put it into a granulator for processing to obtain a powder with a particle size of 0.04-0.08mm;

[0056] Step 4...

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Abstract

The invention discloses a high-temperature-resistant ceramic-based composite material and a preparation method thereof. The composite material comprises, by weight, 100-150 parts of graphene ceramic powder, 1-2 parts of water glass, 5-8 parts of a modified binder and 2-4 parts of water. The preparation method comprises the following steps: adding water into the graphene ceramic powder, carrying out stirring, then adding the water glass and the modified binder, and carrying out mixing under stirring; conveying the mixed raw materials to vacuum drying equipment for drying, and taking out the dried mixed raw materials for standing and cooling; carrying out crushing and putting obtained powder into a granulator for processing; and filling a mold with granulated powder and carrying out isostatic pressing to obtain a blank. According to the invention, graphene powder is added into a ceramic matrix, and since graphene is in regular parallel arrangement, the composite material is allowed to have good mechanical properties, good high-temperature resistance and improved thermal shock resistance, microstructure, overall performance, use reliability, durability and safety, and the applicationscope of the ceramic matrix is broadened.

Description

technical field [0001] The invention relates to a ceramic base material, in particular to a high temperature resistant ceramic base composite material and a preparation method thereof. Background technique [0002] Ceramic matrix composites are a type of composite materials that are composited with ceramics as a matrix and various fibers. The ceramic matrix can be high-temperature structural ceramics such as silicon nitride and silicon carbide. These advanced ceramics have excellent properties such as high temperature resistance, high strength and rigidity, relatively light weight, and corrosion resistance. However, their fatal weakness is that they are brittle. When they are under stress, they will crack or even break and cause the material to fail. The use of high-strength, high-elastic fiber and matrix composite is an effective method to improve the toughness and reliability of ceramics. Fibers can prevent cracks from expanding, thus obtaining fiber-reinforced ceramic m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/14C04B35/46C04B35/48C04B35/563C04B35/565C04B35/58C04B35/63
CPCC04B35/10C04B35/14C04B35/46C04B35/48C04B35/563C04B35/565C04B35/58071C04B35/622C04B35/6303C04B2235/425
Inventor 万明军
Owner 合肥岑遥新材料科技有限公司