Aluminum-silicon carbide composite ceramic materials and preparation method and application thereof

A technology of silicon carbide ceramics and composite ceramics, which is applied in metal material coating technology, ion implantation plating, coating, etc., can solve the problems of poor bulletproof ability of composite bulletproof boards and reduced weight of bulletproof boards, and achieve excellent bulletproof performance , to ensure the mobility requirements, and the effect of excellent bulletproof performance

Active Publication Date: 2015-11-11
ZHEJIANG LIGHT TOUGH COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this patent, the convex-shaped bulletproof ceramics are first closely arranged, and then adhesives are used to bond them together. Although the finishing weight of the bulletproof plate can be greatly reduced, ordinary adhesives cannot tightly connect the convex-

Method used

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  • Aluminum-silicon carbide composite ceramic materials and preparation method and application thereof
  • Aluminum-silicon carbide composite ceramic materials and preparation method and application thereof
  • Aluminum-silicon carbide composite ceramic materials and preparation method and application thereof

Examples

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Embodiment 1

[0029] A method for preparing an aluminum-silicon carbide composite ceramic material, comprising the following steps:

[0030] (1) 90g of titanium metal powder with a purity of 99% and a particle size of 20-60 μm and 210 g of TiO with a purity of 99.5% and a particle size of 40-100 μm 2 Mix the powder evenly, put it into a graphite container, and then disperse and embed 8 cylindrical pressureless sintered silicon carbide and 2 semi-cylindrical pressureless sintered silicon carbide into the mixed powder. The outer dimension of each silicon carbide is columnar Type, the main body size is Φ8mm×12mm, one end of the cylinder is a plane, the other end is a spherical crown with a diameter of 25mm and a height of 2mm, its structure is as follows figure 2 shown;

[0031] (2) Put the above mixture together into a vacuum furnace and keep the vacuum degree to 2×10 -3 Pa or above, heat up to 1000°C for 2 hours, and after cooling in the furnace, take out and clean the surface of the cera...

Embodiment 2

[0036] A method for preparing an aluminum-silicon carbide composite ceramic material, comprising the following steps:

[0037] (1) Mix 120g of titanium metal powder with a purity of 99% and a particle size of 20 to 60 μm with 180 g of TiO with a purity of 99.5% and a particle size of 40 to 100 μm 2 Mix the powder evenly and put it into a graphite container; then disperse and embed 8 cylindrical reaction-sintered silicon carbide and 2 semi-cylindrical reaction-sintered silicon carbide into the mixed powder. The outer dimension of each silicon carbide is columnar, The main body size is Φ12mm×10mm, one end of the cylinder is a plane, and the other end is a spherical crown with a diameter of 28mm and a height of 3mm;

[0038] (2) Put the above mixture together into a vacuum furnace and keep the vacuum degree to 2×10 -3 Pa or above, heat up to 1100°C for 1 hour, and after cooling with the furnace, take out and clean the surface of the ceramic particles to obtain silicon carbide ce...

Embodiment 3

[0043] An aluminum-silicon carbide composite ceramic material, including 13 closely arranged silicon carbide ceramics, the surface of the silicon carbide ceramics is coated with a 1 μm metal titanium layer, aluminum alloy melt is poured between each silicon carbide ceramics and combined into a whole, aluminum alloy -Silicon carbide composite ceramic material is prepared by the following steps:

[0044] (1) 240g of pure titanium powder with a particle size of 20μm and 60g of TiO with a particle size of 40μm 2 Mix the powder evenly, put it into a ceramic crucible to obtain a mixed powder, then disperse and embed 11 reaction-sintered cylindrical silicon carbide ceramics and 2 reaction-sintered semi-cylindrical silicon carbide ceramics into the mixed powder to obtain The main body size of the mixture, cylindrical silicon carbide ceramics and semi-cylindrical silicon carbide ceramics is Φ5mm×8mm, one end of the cylindrical silicon carbide ceramics is a plane, the other end is a spher...

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Abstract

The invention relates to aluminum-silicon carbide composite ceramic materials and a preparation method and application thereof. The aluminum-silicon carbide composite ceramic materials are prepared through the following steps that (1) silicon carbide ceramics are dispersed and buried in metal titanium powder, heated to 1000-1100 DEG C in a vacuum environment, kept at the temperature for 1-3h, and then cooled, so that ceramic particles with surfaces plated with metal titanium layers in an evaporation mode are obtained; (2) the ceramic particles with the surfaces plated with the metal titanium layers in the evaporation mode are put into a container, arranged tightly to form a ceramic array, heated and then put into a compression casting machine, and metal aluminum melt is cast into the ceramic array; and (3) after mold release, the surfaces of the ceramics are cleaned, and the aluminum-silicon carbide composite ceramic materials are obtained and can be used for manufacturing bulletproof plates. Compared with the prior art, the composite ceramic materials have the characteristics of being compact in combination, simple in preparation method, suitable for industrial enlargement and the like.

Description

technical field [0001] The invention relates to a composite ceramic material and its preparation method and application, in particular to an aluminum-silicon carbide composite ceramic material and its preparation method and application. Background technique [0002] Silicon carbide ceramics is one of the mainstream human body protection materials at present. It has the characteristics of low density, high hardness, and high bending strength. It has good bulletproof comprehensive performance and can maintain the combat mobility of equipment personnel to a large extent. However, silicon carbide ceramics are brittle and have poor resistance to multiple bullets. In order to overcome this shortcoming, the use of cylindrical silicon carbide ceramics densely packed into large bulletproof ceramic plates can better solve the problem of fatal rapid brittle fracture of ceramic bulletproof plates, especially when the two ends of cylindrical ceramic particles or when facing When one end...

Claims

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Application Information

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IPC IPC(8): C23C14/24C23C14/18
Inventor 杨亚云林文松闫学增
Owner ZHEJIANG LIGHT TOUGH COMPOSITE MATERIALS
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