Low-cost light-weight highly-bulletproof B4C/SiC composite ceramic bulletproof plate and preparation method thereof

Abstract

The invention relates to a low-cost light-weight highly-bulletproof B4C / SiC composite ceramic bulletproof plate and a preparation method thereof. The bulletproof plate is made from silicon carbide granulated powder by pressing, drying, debinding and sintering. The silicon carbide granulated powder is composed of, by weight, 60%-73% of silicon carbide micropowder, 6%-8% of phenolic resin, 0.5%-2% of carbon black, 0.5%-2% of graphite, 5%-16% of boron carbide and 10%-12% of polyvinyl alcohol. By adoption of the silicon carbide granulated powder as a raw material for preparation and adoption of a hydraulic forming machine for pressing, drying, debinding and sintering, the low-cost light-weight highly-bulletproof B4C / SiC composite ceramic bulletproof plate prepared according to the method is high in production efficiency, low in production cost and available for continuous production.

Description

technical field [0001] The invention relates to a low-cost light weight high ballistic performance B 4 The invention discloses a C / SiC composite ceramic bulletproof plate and a preparation method thereof, belonging to the technical field of ceramic preparation. Background technique [0002] Body armor is a body protective equipment commonly used by soldiers, policemen, security guards and other special personnel, and it belongs to military and civilian dual-use products. Body armor is generally composed of an inner ceramic bulletproof plate and a fiber material that wraps the ceramic bulletproof plate to increase wearing comfort. The ceramic bulletproof plate is an important part of the body armor, and the bulletproof performance of the ceramic bulletproof plate directly determines the performance of the body armor. With the continuous development of bulletproof materials, people have higher and higher requirements for bulletproof performance, weight, wearing comfort and p...

AI Technical Summary

Problems solved by technology

The main problems of this process are: 1) the process is relatively complicated, the production efficiency is low, and the processing cost is high; 2) the integrity is poor. Effects such as vibration may cause some small pieces to fall off, thereby making the body armor scrapped; 3) Since the splicing is not a whole, the strength is generally low, resulting in poor bulletproof effect. Once the bullet or single piece just hits the joint, there will be It may cause harm to the human body, and there is a greater potential safety hazard

[0005] At present, there are integral plate-shaped bulletproof panels on the market, but they are generally square and arc panels with simple shapes. This type of bulletproof panels cannot fit well with the contours of the chest and abdomen of the human body, resulting in poor bulletproof quality and poor wearing comfort. Risks to mobility of the wearer

The multi-arc integral bulletproof plate matches the contour of the human chest and abdomen, but there are difficulties in processing and molding, uneven density distribution of the product blank, easy deformation, and easy cracking during sintering. Few products are on the market.

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