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Insert-buckled bullet-proof ceramic wafer and preparation method thereof

A ceramic sheet, embedded button technology, applied in the direction of the structure of the armor plate, can solve the problems of scattering, easy to be penetrated by bullets, etc., achieve long service life, increase the bonding area and bonding strength, and can be processed. strong effect

Active Publication Date: 2018-01-09
LUOYANG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the seams between the ceramic sheets form a weak point that is easily penetrated by bullets, and the force generated by the bullets will also spread along the seams

Method used

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  • Insert-buckled bullet-proof ceramic wafer and preparation method thereof
  • Insert-buckled bullet-proof ceramic wafer and preparation method thereof
  • Insert-buckled bullet-proof ceramic wafer and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0038] A method for preparing an embedded bulletproof ceramic sheet, comprising the following steps: step 1, weighing and mixing each raw material according to the weight percentage of claim 1 to form a mixture, placing the mixture in a ball mill for ball milling for 15 hours, and performing Drying treatment to obtain solid solution powder; wherein, an argon atmosphere is used during ball milling;

[0039] Step 2: Place the solid solution powder in a pre-prepared graphite mold, preload it in a press with a pressure of 5~10MPa for 10~25s, and cold press the solid solution powder to obtain a blank with the desired shape; wherein, cold pressing The molding pressure is 25~35MPa, and the holding time is 10~15min;

[0040] Step 3: Vacuum the inside of the sintering furnace, and the vacuum degree is 10 -2Pa, and then put the blank prepared in step 2 together with the mold into the sintering furnace for vacuum hot pressing sintering. The sintering temperature is 1500~1600°C, and it i...

Embodiment 1

[0043] An embedded bulletproof ceramic sheet, the bulletproof ceramic sheet 2 has a square structure, and each bulletproof ceramic sheet 2 is formed by butting concave and convex embedded buttons. Such as figure 2 As shown, concave grooves are provided on the oppositely arranged edges 3 in the bulletproof ceramic sheet 2, and convex ridges 5 are provided on the edge 3 adjacent to the concave groove 4 in the bulletproof ceramic sheet 2, and the bulletproof ceramic sheet 2 is in the When docking, the edge 3 of a bulletproof ceramic sheet 2 provided with the concave groove 4 is interlocked with the edge 3 of the other bulletproof ceramic sheet 2 provided with the convex ridge 5 through the concave groove 4 and the convex ridge 5 . There is a clearance fit between the convex ridge 5 and the concave groove 4, and the concave groove 4 and the convex ridge 5 are respectively arranged in the middle of their respective edges, and the gap between the convex ridge 5 and the concave groo...

Embodiment 2

[0046] An embedded bulletproof ceramic sheet, such as Figure 4 As shown, the bulletproof ceramic sheet 2 has a square structure, and the bulletproof ceramic sheet 2 is formed by butting up and down. Such as Figure 5 As shown, the edge 3 of the bulletproof ceramic sheet 2 is provided with a concave groove 4 separated up and down and a convex ridge 5 protruding from the edge 3, and the concave groove 4 communicates with the convex ridge 5, wherein the bulletproof ceramic sheet 2 In the oppositely arranged edge 3, the concave groove 4 is located above the convex ridge 5, so that the cross-section of the end surface of the edge 3 along its center line has an L-shaped structure, that is, the two edges have a stepped structure; the bulletproof ceramic sheet In the remaining two edges 3 of 2, the convex ridge 5 is located above the concave groove 4, so that the cross-section of the end surface of the edge 3 along its center line is an inverted L-shaped structure; when the bulletpr...

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Abstract

The invention discloses an insert-buckled bullet-proof ceramic wafer and a preparation method thereof. The bullet-proof ceramic wafer is composed of 40-50% of silicon carbide powder, 20-25% of siliconpowder, 18-22% of short carbon fibers and 10-16% of phenolic resin powder, and the bullet-proof ceramic wafer is in butt joint in a concave-convex or top-bottom insert-buckled manner, so that the bonding area and bonding strength of the adhesive in the insert-buckled structure are increased, and the joint strength and rigidity between the ceramic wafers are enhanced. Moreover, the raw materials are subjected to cold-pressing and hot-pressing molding, a sintered composite ceramic material which has high strength, hardness and good wear resistance and is nearly completely dense can be obtained,the service life is long, and the processibility is high.

Description

technical field [0001] The invention relates to the technical field of bulletproof ceramics, in particular to an embedded bulletproof ceramic sheet and a preparation method thereof. Background technique [0002] Human body and armor protection are increasingly valued in modern high-tech warfare. The characteristics that bulletproof materials should have can be summarized as: high hardness, high strength, high toughness, and low density. As an advanced high-tech material, ceramic materials are widely used in bulletproof materials because of their high strength, high hardness, corrosion resistance, high wear resistance and light weight. The current ceramic bulletproof materials usually use alumina, silicon carbide, boron carbide and silicon nitride. However, ceramic materials also have many disadvantages, such as poor plasticity, low fracture strength and brittle fracture, and small molding size. These deficiencies prevent ceramics from being used alone as homogeneous armor....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/80C04B35/565C04B35/645F41H5/02F41H5/04
Inventor 冯新立陈智勇冯新贤
Owner LUOYANG INST OF SCI & TECH
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