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Multiscale ceramic reinforced aluminum matrix composite with dense arrangement body and preparation method thereof

A technology for reinforcing 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, which can solve the problems of low ceramic volume fraction and poor elastic resistance, and achieve excellent elastic resistance, Delay the effects of premature failure

Active Publication Date: 2019-11-26
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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  • Multiscale ceramic reinforced aluminum matrix composite with dense arrangement body and preparation method thereof
  • Multiscale ceramic reinforced aluminum matrix composite with dense arrangement body and preparation method thereof
  • Multiscale ceramic reinforced aluminum matrix composite with dense arrangement body and preparation method thereof

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specific Embodiment approach 1

[0021] Specific embodiment one: this embodiment is a close-packed multi-scale ceramic reinforced aluminum matrix composite material composed of ceramic close-packed body, aluminum-containing material and ceramic powder filler; the ceramic close-packed body is composed of a number of ceramic columns The aluminum-containing material is aluminum or aluminum alloy; the packing density of the ceramic powder filler is 25-80%; the ceramic phase in the close-packed multi-scale ceramic reinforced aluminum matrix composite material The overall number of points is 65 to 93%.

specific Embodiment approach 2

[0022] Specific embodiment two: this embodiment is different from specific embodiment one in that: the ceramic cylinder is a cylinder with an arc on the end surface, the 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 the first embodiment.

specific Embodiment approach 3

[0023] Specific embodiment three: This embodiment is different from specific embodiment one or two in that when the bulk density of the ceramic powder filler is 25-45%, the ceramic powder filler is composed of ceramic powder and Al Alloy powder is mixed; 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 When it is 56 to 80%, the ceramic powder filler is obtained by grading ceramic powder 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 the first or second embodiment.

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Abstract

The invention relates to a multiscale ceramic reinforced aluminum matrix composite with a dense arrangement body and a preparation method of the multiscale ceramic reinforced aluminum matrix composite. The problems that a traditional homogeneous aluminum matrix composite is poor in bullet-proof performance, and the ceramic volume fraction in a bulletproof aluminum matrix composite is low are solved. The composite is composed of the ceramic dense arrangement body, materials containing aluminum and ceramic powder filler. The preparation method comprises the steps that the dense arrangement bodyis densely arranged in a die; 2, column gaps are filled with ceramic powder; 3, a prefab body is prepared trough cold pressing preheating; 4, aluminum is molten; and 5, the molten aluminum is pressedinto the prefab body, the pressure is maintained, and the material is removed from the die to obtain the composite material. The composite has the ceramic content reaching 65-93vol.%, and has excellent bullet-proof performance. The multiscale ceramic reinforced aluminum matrix composite 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 layer are getting higher and higher. Simply increasing the protective effect by thickening the armor protection layer is bound to seriously affect the combat mobility and rapid response capability of the weapon system. At present, the mainstream draped armor structure is ceramic composite armor, and the structure is ceramic panel + metal back panel. In this structure, the difference in wave impedance between the ceramic and the metal is too large, resulting in a large reflected tensile wave, and the ceramic is severely broken, which affects the protective ability of the ceramic composite armor structure. It is necessary to dev...

Claims

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Application Information

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Patent Type & Authority Applications(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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