Nano TiC ceramic particle reinforced aluminum matrix composite and preparation method thereof

A technology of ceramic particles and reinforced aluminum matrix, which is applied in the field of metal matrix composite materials, can solve the problems of fast reaction speed, segregation, and easy growth of reinforced phase particles, and achieve the effect of uniform distribution and good roundness
CN104532068AInactive Publication Date: 2015-04-22HOHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HOHAI UNIV
Publication Date
2015-04-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a nano TiC ceramic particle reinforced aluminum matrix composite and a preparation method thereof. The nano TiC ceramic particle reinforced aluminum matrix composite comprises a matrix and a nano TiC ceramic reinforcer, wherein the aluminum serves as the matrix. The nano TiC ceramic reinforcer has a size of 0.1-1mu m, and the addition amount of the nano TiC ceramic reinforcer is 1-15% of that of aluminum. The nano TiC ceramic reinforcer is prepared from aluminum powder, titanium powder, graphite powder and NaCl, wherein NaCl serves as a refiner, the molar ratio of titanium powder to graphite powder is 1:1.2, the molar ratio of NaCl to titanium powder and graphite powder is 3:25, and the mass ratio of aluminum powder to titanium powder and graphite powder is 3:7. The preparation method of the nano TiC ceramic particle reinforced aluminum matrix composite comprises the steps: pre-pressing aluminum powder, titanium powder, graphite powder and NaCl into a block, adding the block into an aluminum melt, carrying out reaction on the block and the aluminum melt to obtain the nano TiC ceramic particle reinforced aluminum matrix composite. The nano TiC ceramic reinforcer (particle) has good roundness, can be distributed uniformly in aluminum and can be well combined with aluminum.
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Description

technical field

[0001] The invention relates to hard ceramic particle-reinforced metal-based composite materials, in particular to in-situ synthesis of nano-TiC ceramic particle-reinforced aluminum-based composite materials and a preparation process thereof, belonging to the field of metal-based composite materials. Background technique

[0002] With the development of science and technology, especially the rapid development of aerospace, national defense, transportation and other fields, the requirements for the comprehensive performance of materials are getting higher and higher, and a single material can no longer meet this requirement. Particle-reinforced aluminum matrix composites have the advantages of high specific strength, wear resistance, and heat resistance, and are used in many fields to replace traditional steel materials. TiC has the advantages of high strength, high modulus, high melting point and good wetting with the aluminum matrix. At the same time, TiC ha...

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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