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Multifunctional metal-ceramic composite material and preparation method thereof

A ceramic composite material and composite material technology, applied in the field of multifunctional metal-ceramic composite materials and its preparation, can solve the problems of single composition and function, and achieve the effects of good fluidity, high tap density and small composition segregation

Pending Publication Date: 2021-07-27
天泽思创(武汉)智能交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently commonly used metal-ceramic powders are still mainly irregular in shape, and have a single composition and function. There are no reports on multifunctional metal-ceramic composite spherical or spherical powders and their preparation methods, which limits their further applications.

Method used

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  • Multifunctional metal-ceramic composite material and preparation method thereof
  • Multifunctional metal-ceramic composite material and preparation method thereof
  • Multifunctional metal-ceramic composite material and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0055] In a specific embodiment, the preparation method includes the following steps:

[0056] (1) Ingredients - Mixing - Drying

[0057] Ti(CN), TiB in micron 2 , Metals (three or more of Ni, Co, Cr, Ti, Fe) are used as raw materials, and weighed according to a certain proportion, and then the raw material powder is wet-milled. The wet grinding medium is absolute ethanol or acetone, and the mixed slurry obtained by wet grinding is dried to obtain a dried mixture.

[0058] (2) spheroidization of the mixture

[0059] After adding a certain amount of molding agent to the drying mixture obtained in step (1) and mixing it evenly, it is sent to a spheroidizing drum device for spheroidization, and then sieved to remove spherical powder with a particle size greater than 30 mesh and less than 200 mesh, which is obtained Spherical or spherical mixed powder with uniform particle size distribution.

[0060] (3) Vacuum sintering treatment

[0061] Place the quasi-spherical or spheric...

Embodiment 1

[0090] (1) Ingredients - Mixing - Drying

[0091] Ti(CN), TiB in micron 2 , Ni, Co, Cr, Ti, Fe are raw materials, weigh each raw material powder by the following mass percentages: Ti (CN) is 35%, TiB 2 30% for Ni, 5% for Co, 5% for Cr, 3% for Ti, and 17% for Fe. The weighed raw material powder is wet-milled, the wet-milling medium is absolute ethanol, and the mixed slurry obtained from the wet-milling is vacuum-dried to obtain a dried mixture.

[0092] (2) spheroidization of the mixture

[0093] After adding the polyethylene glycol with a mass fraction of 5.0% of the total mass of the mixture in the drying mixture obtained in step (1) and mixing evenly, the mixed powder is sent to a spheroidizing drum device for spheroidization, and then sieved to remove the particle size Spherical powder larger than 30 mesh and smaller than 200 mesh can obtain spherical or spherical mixed powder with uniform particle size distribution; the wall of the drum is a jacket structure. It is 10r...

Embodiment 2

[0097] (1) Ingredients - Mixing - Drying

[0098] Ti(CN), TiB in micron 2 , Ni, Co, Cr, Ti, Fe are raw materials, weigh each raw material powder by the following mass percentages: Ti (CN) is 30%, TiB 2 40% for Ni, 9% for Ni, 5% for Co, 5% for Ti, 1% for Cr, and 10% for Fe. The weighed raw material powder is wet-milled, and the wet-milling medium is anhydrous ethanol, and the amount of anhydrous ethanol is limited to the mixed slurry obtained after wet-milling, and the mixed slurry obtained by wet-milling is vacuum-dried to obtain a dried mixed slurry. material.

[0099] (2) spheroidization of the mixture

[0100] After adding the paraffin wax with a mass fraction of 4.0% of the total amount of the mixture in the drying mixture obtained in step (1), after mixing evenly, the mixed powder is sent to a spheroidizing drum device for spheroidization, and then sieved to remove particles with a particle size greater than 30 mesh. And less than 200 mesh spherical powder, that is, t...

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Abstract

The invention provides a multifunctional metal-ceramic composite material. The composite material is composed of a titanium-based ceramic material and a metal, the mass fraction of the titanium-based ceramic material is 50%-97%, and the mass fraction of the metal is 3%-50%. Compared with the prior art, the composite material is small in composition segregation and high in uniformity, meanwhile, the composite material has good fluidity and high tap density and is better in structure uniformity and compactness when being used for preparing a metal ceramic coating through cold spraying, thermal spraying and 3D printing, the stress between the coating and a matrix can be effectively reduced, the bonding strength of the coating and the matrix is improved, and therefore the mechanical property of a workpiece is improved; and the multi-functionalization of the metal-ceramic composite material can be realizes, the composite material can realize multi-functionalization of the metal ceramic coating when being used for preparing the metal ceramic coating through cold spraying, thermal spraying and 3D printing, and meets the requirements on materials in the fields of additive manufacturing, cold spraying, thermal spraying and the like.

Description

technical field [0001] The invention belongs to the technical field of multifunctional materials, and in particular relates to a multifunctional metal-ceramic composite material and a preparation method thereof. Background technique [0002] Wear is the main cause of mechanical component failure. Statistics show that about 80% of mechanical parts failure is mainly caused by various forms of wear. Therefore, in order to prevent premature failure of mechanical parts due to wear, improving the wear resistance of parts is of great engineering significance to prolong their service life, improve production safety and efficiency, and reduce production costs. The wear of mechanical parts generally occurs on the surface. Although heat treatment, modification treatment, doping and other means can effectively improve the surface wear resistance of mechanical parts, the improvement effect is limited, and it cannot solve the problem of mechanical parts due to wear. resulting in prematu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/14C22C29/00B33Y70/10C23C4/06C23C24/04
CPCB22F9/14C22C29/00C22C29/005B33Y70/10C23C4/06C23C24/04B22F1/065B22F1/10
Inventor 刘文杰
Owner 天泽思创(武汉)智能交通科技有限公司
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