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A kind of close-packed multi-scale ceramic reinforced aluminum matrix composite material and its preparation method

A technology for strengthening aluminum matrix and composite materials, which is applied in the field of multi-scale ceramic reinforced aluminum matrix composite materials containing close-packed bodies and its preparation, can solve the problems of poor anti-ballistic performance and low ceramic volume fraction, and achieve excellent anti-ballistic performance, Delays the effect of premature failure

Active Publication Date: 2021-01-12
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims to solve the problems of poor ballistic performance of traditional homogeneous aluminum matrix composite materials and low volume fraction of ceramics in bulletproof aluminum matrix composite materials

Method used

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  • A kind of close-packed multi-scale ceramic reinforced aluminum matrix composite material and its preparation method
  • A kind of close-packed multi-scale ceramic reinforced aluminum matrix composite material and its preparation method
  • A kind of close-packed multi-scale ceramic reinforced aluminum matrix composite material and its preparation method

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specific Embodiment approach 1

[0021] Specific implementation mode 1: In this embodiment, a multi-scale ceramic reinforced aluminum matrix composite material containing a close-packed body is composed of a ceramic close-packed body, an aluminum-containing material, and a ceramic powder filler; the ceramic close-packed body is composed of several ceramic columns The aluminum-containing material is aluminum or aluminum alloy; the bulk density of the ceramic powder filler is 25% to 80%; the ceramic phase in the multi-scale ceramic reinforced aluminum matrix composite material containing close-packed bodies The overall integral score is 65-93%.

specific Embodiment approach 2

[0022] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the ceramic cylinder is a cylinder with a circular arc on the end face, its diameter is 2-30mm, and the aspect ratio is 0.3-5; the ceramic sphere The diameter of the sphere is 1-30mm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0023] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that: when the bulk density of the ceramic powder filler is 25% to 45%, the ceramic powder filler is composed of ceramic powder and Al obtained by mixing alloy powder; when the bulk density of the ceramic powder filler is 46% to 55%, the ceramic powder filler is a ceramic powder with a single particle size; when the bulk density of the ceramic powder filler is When it is 56-80%, the ceramic powder filling is obtained by grading ceramic powders with different particle sizes; the ceramic cylinder is B 4 C ceramic cylinder or SiC ceramic cylinder, the ceramic powder is B 4 C powder or SiC powder, and the ceramic cylinder and ceramic powder are the same ceramic. Others are the same as in the first or second embodiment.

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Abstract

A multi-scale ceramic reinforced aluminum-matrix composite material containing close-packed bodies and a preparation method thereof. The invention relates to a multi-scale ceramic-reinforced aluminum-based composite material containing close-packed bodies and a preparation method thereof. The invention aims to solve the problems of poor anti-ballistic performance of traditional homogeneous aluminum matrix composite materials and low volume fraction of ceramics in bulletproof aluminum matrix composite materials. The material is composed of ceramic close-packed body, aluminum-containing material and ceramic powder filler. Method: Close-packed bodies are densely packed in the mold; 2. Ceramic powder fills the gap between the cylinders; 3. Cold pressing and preheating to prepare the prefabricated body; 4. Melting aluminum liquid; Pressing and demoulding to obtain composite materials. The ceramic content reaches 65-93vol.%, which has excellent anti-ballistic properties. The invention is used in the field of armor protection.

Description

technical field [0001] The invention relates to a multi-scale ceramic reinforced aluminum-based composite material containing close-packed bodies 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. Improving the protective effect simply by thickening the armor protection layer is bound to seriously affect the combat mobility and rapid response capabilities of the weapon system. At present, the mainstream armor structure is ceramic composite armor, and the structure is ceramic panel + metal backplate. In this structure, the wave impedance difference between the ceramic and metal interfaces is too large, resulting in a large reflected stretching wave, and the ceramic is severely broken, which affects the protection ability of the ceramic composite armor structure. It is necessary to deve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C29/06B22D19/02
CPCC22C1/1036C22C1/1015C22C29/067C22C29/005C22C29/062B22D19/02C22C1/1021C22C1/1073
Inventor 姜龙涛晁振龙陈国钦张强芶华松康鹏超修子扬杨文澍乔菁武高辉
Owner HARBIN INST OF TECH
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