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Multilayer composite film and preparation method thereof, and application of multilayer composite film as connecting material for carbon fiber-reinforced carbon composite materials

A technology of multi-layer composite film and carbon composite material, which is applied in the field of composite film and carbon fiber reinforced carbon composite material, can solve the problems of unfavorable composite material mechanical properties, corrosion resistance, and non-corrosion resistance, so as to alleviate collapse failure and save energy. The effect of reducing cost and reducing production difficulty

Active Publication Date: 2017-12-19
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It has been reported in the literature that TSC is used as the solder layer to connect C f / C composite, but TSC with C f The carbon reaction in the / C composite will lead to the decomposition of TSC in the connecting layer and the formation of Ti x Si y Such as brittle phase and not corrosion resistant, which is not conducive to the C after connection f Mechanical properties and corrosion resistance of / C composites

Method used

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  • Multilayer composite film and preparation method thereof, and application of multilayer composite film as connecting material for carbon fiber-reinforced carbon composite materials
  • Multilayer composite film and preparation method thereof, and application of multilayer composite film as connecting material for carbon fiber-reinforced carbon composite materials
  • Multilayer composite film and preparation method thereof, and application of multilayer composite film as connecting material for carbon fiber-reinforced carbon composite materials

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Embodiment 1

[0033] In this embodiment, the multilayer composite film structure is as figure 1 As shown, it is a composite film laminated on the left and right, and along the lamination direction on the left and right, there are the first titanium layer, the titanium silicon carbon layer and the second titanium layer in sequence. Along the left and right stacking directions, the thickness of the first titanium layer is 500 nm, the thickness of the titanium silicon carbon layer is 60 μm, and the thickness of the second titanium layer is 500 nm.

[0034] The above-mentioned multilayer composite film can be used for the connection of carbon fiber reinforced carbon composite materials. Such as figure 2 As shown, the multilayer composite film is used as the connecting material of two carbon fiber reinforced carbon composite materials to be connected. The size of the two carbon fiber reinforced carbon composite materials to be connected is 17*17*5mm. The connection method is as follows:

[00...

Embodiment 2

[0042] In this embodiment, the multilayer composite film structure is as figure 1 As shown, it is a composite film laminated on the left and right, and along the lamination direction on the left and right, there are the first titanium layer, the titanium silicon carbon layer and the second titanium layer in sequence. Along the left and right stacking directions, the thickness of the first titanium layer is 100 nm, the thickness of the titanium silicon carbon layer is 30 μm, and the thickness of the second titanium layer is 100 nm.

[0043] The above-mentioned multilayer composite film can be used for the connection of carbon fiber reinforced carbon composite materials. Such as figure 2 As shown, the multilayer composite film is used as the connecting material of two carbon fiber reinforced carbon composite materials to be connected. The size of the two carbon fiber reinforced carbon composite materials to be connected is 17*17*5mm. The connection method is as follows:

[00...

Embodiment 3

[0051] In this embodiment, the multilayer composite film structure is as figure 1 As shown, it is a composite film laminated on the left and right, and along the lamination direction on the left and right, there are the first titanium layer, the titanium silicon carbon layer and the second titanium layer in sequence. Along the left and right lamination directions, the thickness of the first titanium layer is 300 nm, the thickness of the titanium silicon carbon layer is 50 μm, and the thickness of the second titanium layer is 300 nm.

[0052] The above-mentioned multilayer composite film can be used for the connection of carbon fiber reinforced carbon composite materials. Such as figure 2 As shown, the multilayer composite film is used as the connecting material of two carbon fiber reinforced carbon composite materials to be connected. The size of the two carbon fiber reinforced carbon composite materials to be connected is 17*17*5mm. The connection method is as follows:

[...

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Abstract

The invention provides a multilayer composite film composed of nanometer titanium layers and a titanium silicon carbide layer. The multilayer composite film is applied as a connecting material for carbon fiber-reinforced carbon composite materials. The invention has the advantages that a strong interface transition layer titanium carbide is formed via a reaction of high-activity metallic titanium layers with carbon in carbon fiber-reinforced carbon composite materials, so thermal expansion mismatch between the carbon fiber-reinforced carbon composite materials and the titanium carbide layer can be effectively alleviated; the reaction is an exothermic reaction, so transient high temperature can be realized, which is beneficial for densification of a connection layer; and the titanium silicon carbide layer can alleviate the collapse failure of a connection interface at a high temperature, compensate for surface defects of the carbon fiber-reinforced carbon composite materials, reduce requirements on surface processing precision of the carbon fiber-reinforced carbon composite materials, improve production efficiency and lower production cost.

Description

technical field [0001] The invention belongs to the technical field of composite membranes and carbon fiber reinforced carbon composite materials, and in particular relates to a multilayer composite membrane, a preparation method thereof and an application as a connecting material of carbon fiber reinforced carbon composite materials. Background technique [0002] Carbon fiber reinforced carbon composites (Carbon fiber reinforced carbon composites, referred to as C f / C) has low density, high thermal conductivity, low thermal expansion coefficient, good thermal shock resistance and excellent wear resistance at high temperatures, and is considered to be one of the candidate materials for rocket shields, nozzles and aerospace vehicle brake pads . At the same time, due to its low neutron activity, it also has broad application prospects in nuclear fusion / fission reactor structural materials. [0003] In practical application, C f The shape of / C composites is usually complex...

Claims

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Application Information

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IPC IPC(8): B32B37/06B32B37/10C04B41/88C04B35/83B32B9/04
Inventor 黄庆周小兵杨辉李友兵黄峰都时禹
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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