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A multi-scale and multi-shape ceramic phase reinforced aluminum-based ballistic structural composite material and its preparation method

A technology for strengthening aluminum-based and composite materials, applied in the field of multi-scale and multi-shape ceramic phase-reinforced aluminum-based ballistic-resistant structural composite materials and its preparation, can solve problems such as low ceramic volume fraction, difficulty in deflecting projectiles, and poor ballistic performance , to achieve excellent anti-ballistic properties, delay premature failure, and improve the ability to resist multiple rounds

Active Publication Date: 2021-03-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the problems of low ceramic volume fraction, poor ballistic resistance and difficulty in deflecting projectiles in traditional aluminum-based composite materials

Method used

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  • A multi-scale and multi-shape ceramic phase reinforced aluminum-based ballistic structural composite material and its preparation method
  • A multi-scale and multi-shape ceramic phase reinforced aluminum-based ballistic structural composite material and its preparation method
  • A multi-scale and multi-shape ceramic phase reinforced aluminum-based ballistic structural composite material and its preparation method

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Experimental program
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specific Embodiment approach 1

[0018] Specific Embodiment 1: In this embodiment, a multi-scale and multi-shape ceramic phase-reinforced aluminum-based ballistic-resistant structural composite material is composed of close-packed spheres, close-packed cylinders, aluminum-containing materials and ceramic powder fillers, in which close-packed spheres serve as On the facing surface, close-packed cylinders are used as supports for close-packed spheres; the aluminum-containing material is aluminum or aluminum alloy; the bulk density of the ceramic powder filler is 45% to 60%; the multi-scale and multi-shape ceramic The overall fraction of the ceramic phase in the phase-reinforced aluminum-based ballistic structure composite material is 70-95%.

specific Embodiment approach 2

[0019] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the close-packed cylinders are cylinders with circular arcs on the end faces, with a diameter of 2-30mm and an aspect ratio of 0.3-5; The diameter of the volleyball is 1-30mm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0020] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the bulk density of the ceramic powder filler is 55%; the close-packed cylinders are B 4 C ceramic cylinder or SiC ceramic cylinder, the close-packed spheres are B 4 C sphere or SiC sphere, the ceramic powder is B4C powder or SiC powder, and the close-packed cylinders, close-packed spheres and ceramic powder are the same or different ceramics. Others are the same as in the first or second embodiment.

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Abstract

A multi-scale and multi-shape ceramic phase-reinforced aluminum-based ballistic-resistant structural composite material and a preparation method thereof. The invention relates to a multi-scale and multi-shape ceramic phase-reinforced aluminum-based ballistic-resistant structural composite material and a preparation method thereof. The invention aims to solve the problems of low ceramic volume fraction, poor anti-ballistic performance and difficulty in deflecting projectiles in traditional aluminum-based composite materials. The material is composed of close-packed spheres, close-packed cylinders, aluminum-containing materials and ceramic powder fillers. Method: 1. The cylinders are densely packed in the mold; 2. The spheres are densely packed on the cylinders; 3. The filler powder fills the gap between the cylinders and spheres; 4. Cold pressing and preheating to prepare preforms; 5. Melting aluminum liquid 6. Hydraulically inject the smelted aluminum into the prefabricated body, hold the pressure, and release the multi-scale and multi-shape ceramic-reinforced aluminum matrix composite. The ceramic content reaches 70-95vol.%, which has excellent anti-ballistic properties. The invention is used in the field of armor materials.

Description

technical field [0001] The invention relates to a multi-scale and multi-shape ceramic phase-reinforced aluminum-based ballistic-resistant structural composite material and a preparation method thereof. Background technique [0002] With the development of science and technology, the power of anti-armor weapons is increasing day by day, and the requirements for armor protection are getting higher and higher. Currently active armor materials mainly include metal armor and ceramic composite armor materials. Due to the high density and poor penetration resistance of metal materials, it is difficult to effectively protect projectiles at low surface density. Due to the serious brittleness of ceramic materials in ceramic composite armor materials, it is often difficult to have excellent ability to resist multiple rounds. There is a need to develop a form of armor material that has low density, high penetration resistance and good multiple shot resistance. [0003] The correspond...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C29/06
CPCC22C1/1015C22C1/1036C22C29/062C22C29/067C22C29/005C22C1/1021C22C1/1073
Inventor 姜龙涛晁振龙陈国钦张强芶华松修子扬杨文澍乔菁武高辉
Owner HARBIN INST OF TECH
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