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Method for preparing boron-titanium carbide alloy composite armor

A technology of boron carbide and titanium alloy, which is applied to the structure of armor plate, armor, protective equipment, etc., to achieve the effect of reducing mutual attraction, avoiding reunion, and mature technology

Inactive Publication Date: 2018-05-08
ZHEJIANG LIGHT TOUGH COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of large-scale ceramic armor is still facing great difficulties

Method used

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  • Method for preparing boron-titanium carbide alloy composite armor
  • Method for preparing boron-titanium carbide alloy composite armor
  • Method for preparing boron-titanium carbide alloy composite armor

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Example 1 Preparation of boron carbide ceramic sheet

[0024] Step 1) Raw material powder: choose boron carbide powder with an average particle size of 3-5 um as the raw material, add 3%-4% graphite powder as a sintering aid, and the average particle size of the graphite powder is 1-2 um;

[0025] Step 2) Prepare graphene solution: prepare 1-2 wt% graphene aqueous solution or alcohol solution, add N-methylpyrrolidone as a dispersant, and ultrasonically disperse for 10-20 h to obtain a uniformly dispersed graphene solution; where graphene The sheet diameter > 1um, the number of layers < 10 layers, and the amount of graphene added accounts for 1-5 wt% of the boron carbide powder;

[0026] Step 3) Put the powder obtained in step 1) and the graphene solution obtained in step 2) into a ball mill and mill for 8-10 hours, the speed of the ball mill is 30-50rpm, and the ball-to-material ratio is 2:1;

[0027] Step 4) Granulation: as in figure 1 Shown, adopt granulator, granul...

Embodiment 2

[0030] Example 2 Boron carbide-titanium alloy composite armor

[0031] Step 1) According to the preparation method of Example 1, and the graphite mold in Step 5) of Example 1 is a regular hexagon, such as figure 2 As shown, a regular hexagonal ceramic sheet is obtained, and the ceramic sheet 8 is spliced ​​together to form a ceramic plate 11 .

[0032]Step 2) First, prefabricate a mold of a certain shape according to the size of the boron carbide ceramic plate 11, place the ceramic plate 11 to be poured in the mold, preheat it in a 400°C oven for 1 hour, take it out and place it in the pouring tank. Then the melting furnace is heated to a certain temperature. After the titanium alloy is completely melted, it is cast around the ceramic block. After the molten titanium alloy solidifies, the metal-to-ceramic material is packaged to form an overall structure of titanium alloy wrapped boron carbide ceramics. The amount of titanium alloy is calculated according to the pouring size...

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Abstract

The invention provides a method for preparing a boron-titanium carbide alloy composite armor. The method comprises the following steps: (1) preparing 1-2wt% of a graphene solution, adding a dispersingagent for uniform dispersing, and thus obtaining a graphene uniformly-dispersed solution; (2) adding in boron carbide raw material powder, selecting boron carbide powder with the mean particle size being 3-5um as a raw material, and adding 3-4% of graphene powder as a sintering aid, wherein the mean particle size of the graphene powder is 1-2um; (3) mixing the boron carbide raw material powder and the graphene solution for ball-milling to form slurry; (4) pelletizing and drying, and thus obtaining pelletizing powder; (5) putting the pelletizing powder in a mould, and conducting hot-pressing sintering; (6) splicing ceramic chips into a ceramic plate, placing the ceramic plate in the mould, preheating, and taking out to put in a pouring trough; (7) heating a smelting furnace to a certain temperature, and pouring titanium alloy after completely melted to the surrounding of the ceramic plate; after solidifying molten titanium alloy, realizing the packaging of metal to ceramic materials.

Description

technical field [0001] The invention belongs to the field of bulletproof ceramics, and in particular relates to a preparation method of boron carbide-titanium alloy composite armor. Background technique [0002] With the rapid development of science and technology, the threats faced on the battlefield are increasing, making bulletproof armor materials increasingly develop in the direction of high hardness, high strength, high toughness, and low density. Due to the high density of traditional metal bulletproof materials, vehicles, ships and aircraft have to sacrifice their payloads. At the same time, too thick armor reduces the operational flexibility of equipment. Therefore, lightweight bulletproof materials have become a current research hotspot and development trend . Ceramic materials have excellent properties such as high strength, high hardness, high temperature resistance, oxidation resistance, and low density, as well as energy absorption effects, wear effects, and d...

Claims

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Application Information

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IPC IPC(8): F41H5/04B28B1/00B28B3/02C04B35/563C04B35/622B22D19/08
CPCF41H5/0421B22D19/08B28B1/004B28B3/025C04B35/563C04B35/622C04B2235/425
Inventor 夏伦刚崔毅赵立傅肃嘉方宁象
Owner ZHEJIANG LIGHT TOUGH COMPOSITE MATERIALS
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