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Textured coating for improving ballistic resistance of ceramic and preparation method thereof

A ceramic and texture technology is applied in the field of textured coatings for improving the ballistic resistance of ceramics and their preparation, which can solve problems such as being easily penetrated, and achieve the purpose of preventing large-area fragmentation, improving ballistic resistance, and increasing bonding strength. Effect

Active Publication Date: 2020-10-30
中航装甲科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent "A Bulletproof Ceramic Insert" (publication number: CN104390522A) staggers the seams of the bulletproof ceramic blocks by arranging and combining methods to improve the bulletproof performance, but the seams formed by the splicing positions of the ceramic pieces are its weak links, which are easy to was broken down

Method used

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  • Textured coating for improving ballistic resistance of ceramic and preparation method thereof
  • Textured coating for improving ballistic resistance of ceramic and preparation method thereof
  • Textured coating for improving ballistic resistance of ceramic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a textured coating to improve the bulletproof ability of ceramics includes a metal layer 2 and a grid layer 3 arranged on the ceramic substrate 1 from bottom to top in sequence, and the grid outline of the grid layer 3 is depressed to form interweaving grooves Grooves, the grooves form a guiding effect on the crack propagation of the ceramics, so as to prevent large-scale fragmentation of the ceramics, and the grid layer 3 is a square grid.

[0035] The preparation method of the above-mentioned textured coating for improving the ballistic resistance of ceramics: the method comprises the following steps:

[0036] (1) Ceramic surface roughening treatment: Ceramic substrate 1 is subjected to sandblasting roughening treatment before preparing the texture coating; sandblasting equipment is used to roughen the ceramic surface, the sandblasting pressure is 0.5MPa, and the sand particles are brown Corundum, the particle size is 60 mesh, the sandblast...

Embodiment 2

[0043] Such as Figure 2-3 As shown, on the basis of Example 1, the shape of the metal mesh is rhombus, and the side length is 25mm.

Embodiment 3

[0045] On the basis of Example 1, the shape of the metal mesh is a square with a side length of 35 mm.

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Abstract

The invention provides a textured coating for improving ballistic resistance of ceramic. The textured coating comprises a metal layer and a grid layer arranged on a ceramic substrate sequentially frombottom to top, wherein the grid contour lines of the grid layer are recessed to form interwoven grooves that form a guiding effect on the crack propagation of the ceramic to prevent the ceramic frombeing broken in a large area. The textured coating for improving the ballistic resistance of the ceramic according to the invention prepares a textured structure coating on the surface of the ceramicby thermal spraying technology, the coating and the ceramic have high bonding strength, and the grooves have a crack guiding function, so that the ceramic is broken along the grooves to reduce the ceramic broken area.

Description

technical field [0001] The invention relates to the technical field of protection, in particular to a textured coating for improving the ballistic resistance of ceramics and a preparation method thereof. Background technique [0002] With the advancement of equipment technology, higher requirements are put forward for the weight and bulletproof ability of armor, and the armor is developing in the direction of lighter weight and stronger protection ability. In order to improve the destructive ability of the armor to the warhead and reduce the quality of the armor at the same time, the current lightweight armor uses ceramic panels as the bombardment surface. Ceramics have extremely high hardness and can destroy the warhead when it hits the warhead. However, the low toughness of ceramics makes it crack in a large area when it is impacted, which affects its secondary protection ability. [0003] Researchers changed the direction of crack propagation by presetting the "weak surf...

Claims

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Application Information

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IPC IPC(8): C23C28/02C23C14/34C23C14/02C23C14/18C23C4/129C23C4/134C23C4/06C23C4/08
CPCC23C28/023C23C28/021C23C14/34C23C14/185C23C14/028C23C4/129C23C4/134C23C4/08C23C4/06
Inventor 米鹏博田歌宋磊磊魏成霖
Owner 中航装甲科技有限公司
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