High-strength high-ductility CNTs-SiCp enhanced aluminum-based composite material and preparation method thereof

A technology for strengthening aluminum-based and composite materials, which is applied in the preparation of the material, in the field of high-strength and high-ductility CNTs-SiCp reinforced aluminum-based composite materials, which can solve the problems of difficulty in balancing strength, ductility, and conductivity, and achieve weakening adverse reactions and strengthening Effect of interfacial bonding and wettability improvement
CN106498313AInactive Publication Date: 2017-03-15XIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN UNIV OF TECH
Publication Date
2017-03-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a high-strength high-ductility CNTs-SiCp enhanced aluminum-based composite material which comprises the following components: less than or equal to 5vol.% of a carbon nano tube, less than or equal to 5 vol.% of silicon carbide particles and the balance aluminum powder. A preparation method for the high-strength high-ductility CNTs-SiCp enhanced aluminum-based composite material comprises the following steps of: adding raw material components and grinding balls into a ball-milling tank in proportion, adding a process control agent into the ball-milling tank, ball-milling and dispersing under the protection of inert gases, thereby obtaining uniformly dispersed mixed powder; filling a graphite mould with the mixed powder, pre-pressing the mixed powder, and sintering pre-pressed block bodies; and pre-heating a sintered and formed composite material in a tubular furnace under the protection of inert gases, and carrying out thermal extrusion, thereby obtaining the CNTs-SiCp enhanced aluminum-based composite material. The CNTs-SiCp enhanced aluminum-based composite material has very good mechanical property, and also keeps high ductility and high electrical conductivity.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of aluminum-based composite materials, in particular to a high-strength and high-ductility CNTs-SiC p The reinforced aluminum matrix composite material also relates to a preparation method of the material. Background technique

[0002] Aluminum matrix composites (Aluminum Matrix Composites, AMCs) refer to a new class of materials obtained by compounding aluminum or aluminum alloys by adding a reinforcing phase through a certain preparation process technology, which is a kind of light metal material. This type of new material has excellent properties that a single material does not have, such as high specific strength, low density, good dimensional stability, small thermal expansion coefficient, good fatigue resistance, ablation resistance, wear resistance, etc. In addition, aluminum matrix composite materials The preparation methods of aluminum matrix composites are flexible and diverse, the ...

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
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