Unlock instant, AI-driven research and patent intelligence for your innovation.

A gradient aluminum-based composite material resistant to 30mm armor-piercing bullets and its preparation method

An aluminum-based composite material and composite material technology, applied in the field of anti-30mm armor-piercing gradient aluminum-based composite materials and its preparation, can solve the problems of large thickness and poor anti-multiple elastic performance, and achieve low surface density, reduced strength, and interface bonding high intensity effect

Active Publication Date: 2022-04-08
HARBIN INST OF TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of traditional ceramic composite armor structure surface density, large thickness and poor anti-multiple elastic performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A gradient aluminum-based composite material resistant to 30mm armor-piercing bullets and its preparation method
  • A gradient aluminum-based composite material resistant to 30mm armor-piercing bullets and its preparation method
  • A gradient aluminum-based composite material resistant to 30mm armor-piercing bullets and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0018] Specific Embodiment 1: In this embodiment, a gradient aluminum-based composite material resistant to 30mm armor-piercing projectiles has a three-layer gradient structure; the outer layer is densely packed ceramic cylinders, ceramic spheres and B 4 C is an aluminum-based composite material reinforced by ceramic powders, the ceramic spheres are filled in the column gaps of closely packed ceramic cylinders, and the overall volume fraction of ceramic phases in the outer layer is greater than 90%; the middle layer is a high volume fraction B 4 C / Al composite material, in which the volume fraction of the ceramic phase is 60-75%; the inner layer is a medium volume fraction of B 4 The C / Al composite material, wherein the volume fraction of the ceramic phase is 25-55%; the gradient aluminum-based composite material resistant to 30mm armor-piercing projectile is prepared by pressure infiltration and integrated, and has a metallurgical bonding interface.

[0019] In this embodime...

specific Embodiment approach 2

[0020] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the material of the ceramic cylinder and the ceramic sphere is B 4 C or SiC, and the ceramic cylinder and ceramic sphere are made of the same material. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0021] Specific embodiment 3: This embodiment differs from specific embodiment 1 or 2 in that: the ceramic cylinder is a regular cylinder or a cylinder with a curved end surface; the height is 15-20mm, and the length-to-diameter ratio is 0.5- 1.5. Others are the same as in the first or second embodiment.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
heightaaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

A gradient aluminum-based composite material resistant to 30mm armor-piercing projectiles and a preparation method thereof. The invention relates to a gradient aluminum-based composite material resistant to 30mm armor-piercing projectiles and a preparation method thereof. The invention aims to solve the problems of traditional ceramic composite armor structure surface density, large thickness and poor anti-multiple elastic performance. It has a three-layer gradient structure; the outer layer is densely packed ceramic cylinders, ceramic spheres and B 4 Aluminum matrix composite material reinforced by C ceramic powder; the middle layer is B with high volume fraction 4 C / Al composite material; the inner layer is a medium volume fraction of B 4 C / Al composite material; methods: 1. close-packed ceramic cylinders; 2. ceramic spheres filling the gap between the cylinders; 3. B 4 C powder fills the gap; 4. Lay out the prefabricated body powder layer by layer; 5. Vibrate and cold press to prepare the prefabricated body; 6. Melt the molten aluminum, and use pressure infiltration to hydraulically inject the smelted aluminum into the remaining gap of the prefabricated body , holding pressure, demoulding. The invention is used for an armor structure resistant to 30mm armor-piercing projectiles.

Description

technical field [0001] The invention relates to a gradient aluminum-based composite material resistant to 30mm armor-piercing bullets 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. The application of ceramics in the field of armor is a revolution in tank protection technology. The ceramic composite armor structure has also become the mainstream lightweight armor structure in the world. The representative one is the "Chobham Armor" developed by the United Kingdom. Its structure is roughly The sandwich structure of "steel / ceramic / steel". However, the protective mechanism of its structure is as follows: ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C32/00C22F1/04B22D23/04F41H5/04F41H7/04
CPCC22C32/0052C22C21/00B22D23/04C22F1/04F41H5/0421F41H7/04
Inventor 晁振龙姜龙涛张润伟杜善琦陈国钦武高辉
Owner HARBIN INST OF TECH