Vapour deposition in situ reaction method for preparing carbon nanotube reinforced aluminium matrix composite material

Abstract

The invention provides a process for preparing carbon nano tube reinforced aluminum base composite material through gaseous phase in-situ reaction, which comprises using aluminum-base powder as carrying agent, preparing Ni catalyst with chemical deposition precipitation process, obtaining Al-Ni composite powder, preparing carbon nano tube on composite powder in-situ through chemical deposition precipitation process.

Description

technical field [0001] The invention relates to a method for preparing a carbon nanotube aluminum-based composite material, which belongs to the preparation technology of the aluminum-based composite material. Background technique [0002] Aluminum matrix composites have the advantages of low density, corrosion resistance and good processing performance. With the development of modern industries such as aviation, aerospace and automobile manufacturing, higher requirements are put forward for the specific strength, specific stiffness, wear resistance, heat resistance and fatigue resistance of such materials. [0003] Carbon nanotubes (CNTs) have been recognized internationally as a structural material with excellent performance. It is a new type of self-assembled single-molecule material with extremely small scale and excellent mechanical properties. Its closed hollow tubular structure has It has good stability and excellent mechanical properties. It is theoretically estimat...

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Problems solved by technology

The first method is simple, but it cannot solve the problem of the dispersion of carbon nanotubes in aluminum matrix composites and the infiltration between them and the matrix; although the second method can improve...

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