Boron carbide-titanium alloy composite armour

A titanium alloy and boron carbide technology is applied in the field of boron carbide-titanium alloy composite armor, achieving the effects of simple process, mutual attraction avoidance, and mature technology

Inactive Publication Date: 2018-05-01
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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  • Boron carbide-titanium alloy composite armour
  • Boron carbide-titanium alloy composite armour
  • Boron carbide-titanium alloy composite armour

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1 Preparation of boron carbide ceramic sheet

[0020] 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;

[0021] 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;

[0022] 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;

[0023] Step 4) Granulation: as in figure 1 Shown, adopt granulator, granul...

Embodiment 2

[0026] Example 2 Boron carbide-titanium alloy composite armor

[0027] 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 .

[0028] 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 siz...

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Abstract

The invention provides a boron carbide-titanium alloy composite armour which comprises a boron carbide ceramic plate and a titanium alloy. The ceramic plate is wrapped with the titanium alloy, and theboron carbide ceramic plate is formed by splicing boron carbide ceramic pieces which are formed by hot pressing of boron carbide ceramic materials. The boron carbide ceramic materials comprise boroncarbide ceramic base bodies and graphene. The graphene is dispersed in the boron carbide ceramic base bodies. The graphene is evenly dispersed in boron carbide powder, then hot-pressing sintering is adopted, the bending strength is improved from about 350 Mpa to 500 Mpa or above, the titanium alloy for boron carbide ceramic is poured, and an overall structure that the four faces of the titanium alloy are wrapped with boron carbide is formed.

Description

technical field [0001] The invention belongs to the field of bulletproof ceramics, in particular to a 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 dynamic effects, which are benefici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H5/04
CPCF41H5/0414
Inventor 夏伦刚崔毅赵立傅肃嘉方宁象
Owner ZHEJIANG LIGHT TOUGH COMPOSITE MATERIALS
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