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Ordered carbon nano-tube reinforced aluminum matrix composite material and preparation method thereof

A technology for reinforcing aluminum matrix and composite materials, which is applied in the field of ordered carbon nanotube reinforced aluminum matrix composite materials and its preparation, can solve the problems of disordered distribution of carbon nanotubes, etc., and achieves control of high temperature interface reaction, short high temperature residence time, Process efficient effect

Active Publication Date: 2014-04-30
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Similarly, in the technologies provided by the aforementioned two invention patents, the carbon nanotubes are still distributed in the matrix material randomly
In addition, all reports and published patents currently have no method for realizing the orderly arrangement of carbon nanotubes in the aluminum matrix and the design of the network structure. It has always been a major challenge to realize the orientation distribution of carbon nanotubes in the matrix metal. research work, there are still many scientific and technical problems to be solved

Method used

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  • Ordered carbon nano-tube reinforced aluminum matrix composite material and preparation method thereof
  • Ordered carbon nano-tube reinforced aluminum matrix composite material and preparation method thereof
  • Ordered carbon nano-tube reinforced aluminum matrix composite material and preparation method thereof

Examples

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preparation example Construction

[0028] Another aspect of the present invention aims to provide a method for preparing an ordered carbon nanotube-reinforced aluminum-based composite material, comprising: laminating a plurality of ordered carbon nanotube film layers and a plurality of aluminum or its alloy layers and then hot rolling to form a composite material. The ordered carbon nanotube reinforced aluminum-based composite material.

[0029] As one of the practicable solutions, the method may include: preparing a spinnable carbon nanotube array using chemical vapor deposition technology, and directly preparing a super-sequential carbon nanotube film through the array drawing technology; and then laying it on the surface of the aluminum foil, After many times of lamination, it is vacuum sealed in the sheathing material; finally, it is preheated to a certain temperature, and a dense billet is prepared by multiple hot rolling, and then the sheathing material is removed by machining to obtain the target material.

...

Embodiment 1

[0042] Example 1 See figure 1 , The preparation method of the carbon nanotube reinforced aluminum-based composite material is realized as follows:

[0043] Step 1: Use electron beam evaporation to deposit an alumina transition layer on the silicon wafer substrate, then deposit Fe, Co or Fe / Co composite film as a carbon nanotube array growth catalyst, and then use chemical vapor deposition in a tube furnace to prepare spinnable Silk carbon nanotube array; and then obtain super-in-line carbon nanotube film through solid-phase drawing technology;

[0044] Step 2: Lay the super-aligned carbon nanotube film 1 on the surface of a pure aluminum foil 2 with a thickness of 0.03mm, stack them several times, and cut them into a sample with a size of 15mm×20mm;

[0045] Step 3: Vacuum seal the sample in a copper tube with an outer diameter of 25mm, a wall thickness of 0.5mm, and a length of 30mm. The carbon nanotube film and aluminum foil are laminated in 7 layers. When the relative reduction ...

Embodiment 2

[0046] Example 2 The difference between this embodiment and Embodiment 1 is that the thickness of the aluminum foil in step 2 is 0.1 mm.

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Abstract

The present invention discloses an ordered carbon nano-tube reinforced aluminum matrix composite material and a preparation method thereof. The composite material comprises aluminum or an alloy thereof adopted as a matrix material and carbon nano-tubes orderedly dispersed in the matrix material. The method comprises: carrying out cross-lamination on plural ordered carbon nano-tube thin film layers and plural aluminum layers or aluminum alloy layers, and carrying out hot rolling to form the ordered carbon nano-tube reinforced aluminum matrix composite material, wherein the ordered carbon nano-tube thin film layer is formed by the plural orderly-dispersed carbon nano-tubes. According to the present invention, the ordered carbon nano-tube thin film such as the superaligned nano-tube thin film and the like is adopted to carry out lamination and hot rolling with the aluminum foil to prepare the composite material so as to achieve orientation distribution of the carbon nano-tubes in the aluminum matrix, completely provide excellent mechanical property and functional characteristics of the carbon nano-tubes, achieve mechanical enhancement and function modification on the aluminum matrix composite material, combine with the hot rolling molding, and provide important practical application prospects.

Description

technical field [0001] The invention relates to a preparation process of an aluminum-based composite material, in particular to an ordered carbon nanotube-reinforced aluminum-based composite material and a preparation method thereof. Background technique [0002] Structural lightweight is a major demand and development trend of aerospace, transportation, electric power transportation and industrial equipment, and is a key issue for energy saving, emission reduction, energy efficiency improvement, voyage load increase, and operating cost reduction. Among them, lightweight structural materials are the key core technology, providing key support materials for cutting-edge technologies and major projects. As a new light metal matrix composite material, carbon nanotube-reinforced aluminum matrix composite material has a series of excellent properties such as light weight, high strength, high hardness, wear resistance and corrosion resistance, showing a comprehensive performance be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/20C22C49/06C22C101/10
Inventor 李清文王筱峻陈名海
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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