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Fiber-reinforced metal/ceramic laminar composite material protective board

A fiber-reinforced, composite material technology, applied in the direction of the structure of the armor plate, can solve the problems of fragility, poor impact resistance, low density, etc., to achieve good protection against high-speed projectile strikes, good tear resistance, and weight. light effect

Inactive Publication Date: 2009-12-16
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are three main types of existing protective armor plates. The first type is the protective armor plate made of high-strength alloy steel. This protective armor plate has good toughness but low hardness.
The second type is a protective armor plate made of high-toughness ceramics. This protective armor plate has low density and high hardness, but has poor impact resistance. In daily use, it is easy to break and lose its protective effect.
The third type is a metal / ceramic glue bonded composite protective armor plate. The strength of the combination of the metal plate and the ceramic plate is low. Under the impact of the high-speed projectile, the effect of absorbing the energy of the projectile is not ideal. Like the protective armor plate made, it lacks the ability to resist secondary blows, and the glue easily loses its bonding ability in sunlight and humid environments

Method used

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  • Fiber-reinforced metal/ceramic laminar composite material protective board
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  • Fiber-reinforced metal/ceramic laminar composite material protective board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] One mode of the active metal brazing process described in the present invention is: evenly brush the active metal brazing material on the surface of the metal layer, fiber layer and ceramic layer to be combined, and place them together, first in the oven Dry the organic solvent, then place it in a vacuum electric furnace, slowly raise the temperature to 600°C-1650°C, keep it warm for 10-15 minutes, and cool down with the furnace to obtain a well-bonded fiber-reinforced metal / ceramic layered composite material protection plate.

[0026] Fiber-reinforced metal / ceramic laminated composites such as figure 1 Shown:

[0027] figure 1 1 is a metal material layer, 2 is a fiber layer, and 3 is a ceramic material layer. The 3 materials can be manufactured through an active metal brazing process. The layered structure similar to a sandwich can be a single layer or a multilayer. The thickness of the metal layer is 0.5-10mm, the thickness of the ceramic layer is 1-20mm, and the f...

Embodiment 2

[0030] The active casting process described in the present invention refers to reducing the surface tension of the metal melt through the physical or chemical method at a high temperature of 600°C to 1650°C, so that it can be wetted and solidified on the ceramic surface, so that the fiber , metal and ceramic welded together.

[0031] Composite materials such as figure 2 Shown:

[0032] figure 2 1 in it is a metal material layer, and 2 is a fiber material layer, and a similar layered structure can be a single layer or a multilayer stack. The thickness of the metal layer is 0.5-10 mm, and the fiber layer can be a single layer or can be formed by stacking multiple layers of fibers. The metal layer is a complete plate, and the fiber layer can be a complete piece or welded by multiple pieces of fiber.

[0033] The composite structure of this embodiment can also be fabricated by active metal brazing method and powder sintering method.

Embodiment 3

[0035]One method of the powder sintering process of the present invention is: evenly brush the powder sintering material on the surface of the metal layer, fiber layer and ceramic layer to be combined, and put them together, first dry the organic solvent in an oven After drying, place it in a vacuum electric furnace, raise the temperature to 1200°C-1600°C, keep it warm for 45-120 minutes, and cool down with the furnace to obtain a well-bonded fiber-reinforced metal / ceramic layered composite protective plate.

[0036] Composite materials such as image 3 Shown:

[0037] image 3 The 2 in the figure is a fiber layer, and the 3 is a ceramic layer. A similar layered structure can be a single layer or can be formed by stacking multiple layers. The thickness of the ceramic layer is 1-20 mm, and the fiber layer can be a single layer or can be formed by stacking multiple layers of fibers. The ceramic layer can be a complete plate or welded by multiple ceramic plates, and the fiber ...

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Abstract

This invention provides one fiber strengthening metal or ceramics layer compound materials compound protection board in load board technique field, wherein, the protection board has at least one metal layer, fiber layer, ceramics layer structure under high temperature through active welding process, powder bursting process or active metal welding process to connect metal layer, fiber layer and ceramics layer.

Description

technical field [0001] The invention provides a fiber-reinforced metal / ceramic layered composite material protective plate, which belongs to the technical field of armor plates. Background technique [0002] Existing protective armor plate mainly contains three kinds, and the first kind is the protective armor plate made of high-strength alloy steel, and this protective armor plate has good toughness, but hardness is low. The second type is a protective armor plate made of high-toughness ceramics. This protective armor plate has low density and high hardness, but has poor impact resistance. In daily use, it is easily broken and loses its protective effect. The third type is a metal / ceramic glue bonded composite protective armor plate. The strength of the combination of the metal plate and the ceramic plate is low. Under the impact of a high-speed projectile, the effect of absorbing the energy of the projectile is not ideal. Like the protective armor plate made, it lacks the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F41H5/04
Inventor 彭榕
Owner BEIHANG UNIV
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