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Ceramic ball/resin composite material armour and its preparing process

A technology of resin composite materials and ceramic balls, which is applied to the structure of armor plates and other directions, can solve the problems of inability to exert high strength, high hardness and high wear resistance, and achieve the effect of improving protection performance and improving kinetic energy attenuation efficiency.

Inactive Publication Date: 2007-04-18
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that silicon carbide powder is used as a reinforcing agent, which cannot give full play to the inherent high strength, high hardness, and high wear resistance of ceramic materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

experiment approach 1

[0017] 13mm corundum balls 154, epoxy resin 120g, curing agent 60g. The corundum balls are densely arranged in three layers in a mold with an inner diameter of 100mm, and the mixed resin formed by mixing epoxy resin and curing agent is poured into the mold with ceramic balls, heated to 100°C, kept for 1 hour, and then taken out The mold is demoulded after cooling at room temperature to obtain a corundum ball / epoxy resin composite material. After the surface is polished and colored, it can be used as a corundum ball / epoxy resin composite armor plate.

experiment approach 2

[0019] 10mm silicon carbide balls 271, epoxy resin 100g, curing agent 50g. Arrange the silicon carbide balls in three layers densely in a mold with an inner diameter of 100mm, pour the mixed resin formed by mixing epoxy resin and curing agent into the mold with ceramic balls, heat to 100°C, and keep it warm for 1 hour Take out the mold, demould after cooling at room temperature, and obtain the silicon carbide ball / epoxy resin composite material. After the surface is polished and colored, it can be used as a silicon carbide ball / epoxy resin composite armor plate.

experiment approach 3

[0021] 13mm boron carbide balls 258, phenolic resin 200g, NL curing agent 14g. The boron carbide balls are densely arranged in five layers in a mold with an inner diameter of 100mm, and the mixed resin formed by mixing phenolic resin and NL curing agent is poured into the mold with ceramic balls, heated to 170°C, and kept for 1 hour. Take out the mold, demould after cooling at room temperature, and obtain boron carbide ball / phenolic resin composite material. After the surface is polished and colored, it can be used as a boron carbide ball / phenolic resin composite armor plate.

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Abstract

The invention supplies a ceramic bal / resin composite material armor plate. Its feature is that it contains ceramic ball and resin two parts; and the former is distributed in the latter. The ceramic ball has high rigidity, intensity, and antifriction, gives preference to corundum, silicon carbide, silicon nitride, boron carbide ceramics. The resin is heat hardening one, gives preference to epoxy resin and phenolic resin. The advantages of the invention are that the ceramic ball forms a multilayer protecting system which can dissipate load and kinetic energy to greatly increase protecting performance while bullet and armor plate are colliding; the armor plate has alternate kinetic energy transferring to greatly increase the rate of decay for kinetic energy of bullet.

Description

technical field [0001] The invention relates to a composite material armor plate and a preparation method thereof, in particular to a ceramic ball / resin composite material armor plate and a preparation method thereof. Background technique [0002] In Afghanistan, Bosnia and Herzegovina, Kosovo and Iraq, ceramic armor has saved the lives of countless soldiers. With the frequent local wars and the increasing rampant of terrorists, the demand for ceramic armor has soared. However, the average weight of a soldier wearing a set of advanced alumina ceramic body armor is more than ten kilograms. The body armor with such a heavy load reduces the mobility of soldiers and greatly increases their fatigue, thereby reducing the combat capability of soldiers. Therefore, it is necessary to develop new lightweight composite armor. [0003] U.S. Patent No. 3,705,558 (disclosure date 1972.12. 12) discloses a composite armor of laminated structure, which is a sandwich structure, with three l...

Claims

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Application Information

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IPC IPC(8): F41H5/02
Inventor 陈照峰张颖李聪严波
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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