A method for preparing ceramic composite armor

Abstract

A method for preparing ceramic composite armor, a fiber composite plate is placed on the bottom of the mold cavity, a layer of hollow ceramic microsphere powder is spread, and then SiO 2 The airgel felt is placed on the powder layer, and a layer of hollow ceramic microsphere powder is spread on its upper surface, and then another fiber composite board is placed on the powder layer, and a layer of hollow ceramic microsphere powder is spread on its upper surface. Ball powder, then place the SiC ceramic plate on the powder layer, place the mold in a vacuum drying oven and transport epoxy resin into the mold, so that the epoxy resin fills the cavity of the mold and then seal the cavity of the mold, heat preservation makes the mold The epoxy resin inside is cured and cross-linked, and the ceramic composite armor can be obtained by cleaning after taking it out. In the present invention, the epoxy resin is distributed in the gaps between the hollow ceramic microspheres, and produces a composite bonding effect with a plurality of hollow ceramic microspheres to form a solid epoxy composite foam, and the bonding is more firm so that the layers of the armor The composite is more compact, which improves the ballistic performance of the composite armor.

Description

technical field [0001] The invention relates to the field of ceramic composite armor, in particular to a method for preparing ceramic composite armor. Background technique [0002] Composite armor is made of a variety of materials with different physical properties, compounded according to a certain layer ratio, relying on the difference in physical properties between layers to interfere with the penetration of projectiles, consume their energy, and finally achieve the purpose of preventing projectiles from penetrating Armor, widely used in combat armored vehicles, armed helicopters, armored anti-riot vehicles, body armor and other fields. Ceramic materials are widely used in the design of composite armor due to their good dynamic mechanical properties such as high hardness, low density, high compressive strength, and high sound velocity. However, ceramic materials also have small molding sizes, poor plasticity, and low fracture strength. Insufficient, so that ceramics can ...

AI Technical Summary

Problems solved by technology

[0003] When preparing ceramic composite armor in the prior art, epoxy resin is first applied between the layers, and then the layers are stacked in sequence, and after the epoxy resin is cured, the layers are bonded together. The ability of the resin to transmit and absorb impact between the layers is insufficient, and the bonding to the layers is not strong enough, so that the separation between the fiber backplane and the ceramic panel is relatively large after being hit by a bullet, and the amount of back convex deformation It is also relatively large, so that the bulletproof ability of the ceramic composite armor is insufficient; and the performance of the ceramic composite armor made in the prior art is also insufficient in terms of weight, so that the weapons and equipment of the ceramic composite armor made by the prior art are relatively cumbersome , it is difficult to meet the actual combat requirements of modernization

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