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Spatially ordered frame structure ceramic-metal composite material and preparation method thereof

A metal composite material and frame structure technology, applied in ceramic molding machines, manufacturing tools, etc., can solve the problems of unsuitable performance of plastic templates, residual impurities in closed spaces, and easy deformation, and achieve good impact toughness and excellent friction performance. and the effect of heat resistance and high hardness

Inactive Publication Date: 2019-04-26
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method uses 3D printing technology, the steps are relatively cumbersome, and the method of indirect sintering the ceramic skeleton obtained by 3D printing plastic templates has many defects: for example, the performance of plastic templates is not suitable for more complex spatial structure design, and The plastic space structure is prone to local deformation when pouring ceramics, and there are more impurities in the internal closed space after sintering

Method used

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  • Spatially ordered frame structure ceramic-metal composite material and preparation method thereof
  • Spatially ordered frame structure ceramic-metal composite material and preparation method thereof
  • Spatially ordered frame structure ceramic-metal composite material and preparation method thereof

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preparation example Construction

[0043] The invention provides a method for preparing a space-ordered frame structure ceramic-metal composite material, comprising the following steps:

[0044](1) Obtain 3D printing slice data according to the predetermined ceramic molding structure;

[0045] (2) ball milling the ceramic powder, forming aid and liquid medium to obtain a slurry, and performing 3D clay printing on the slurry according to the 3D printing slice data to obtain a ceramic blank;

[0046] (3) drying and sintering the ceramic blank described in step (2) in sequence to obtain a ceramic matrix with a spatially ordered frame structure;

[0047] (4) Carry out film covering treatment to the ceramic substrate described in step (3) using a heat-conducting lubricating material;

[0048] (5) Composite the metal material and the ceramic matrix after film covering treatment by metal casting or powder metallurgy to obtain a ceramic-metal composite material with a spatially ordered frame structure.

[0049] The r...

Embodiment 1

[0074] A method for preparing a spatially ordered frame structure ceramic-metal composite material, specifically comprising the following steps:

[0075] (1) establish the alumina-kaolin ceramic three-dimensional model of space order frame structure with Solidwork (attached to the present invention figure 2 ). Use Cura to cut the 3D model, save it as a .gcode file, and import it to the 3D printer.

[0076] (2) Calculate the mixed powder of 70% alumina, 25% kaolin, and 5% magnesium oxide as 100%, add 0.5% sodium hexametaphosphate, 8% glycerol, 1.2% carboxymethyl cellulose, and PVA 1%, the defoamer selects 1% of the ceramic slurry defoamer (produced by Defeng Company) of model DF-179 / 8868 / 176 for use, and the hyperdispersant selects 0.5% of model Dolapix CE-64 (produced by German Sima Chemical Industry), The superplasticizer is POLYOX WSRN-80 (produced by American Dow Chemical Company) 0.5% and mixed evenly. After ball milling for 24 hours, a slurry with good thixotropy and f...

Embodiment 2

[0084] A method for preparing a spatially ordered frame structure ceramic-metal composite material, specifically comprising the following steps:

[0085] (1) SiC-Si with spatially ordered frame structure built by UG 3 N 4 Ceramic three-dimensional model (attached to the present invention Figure 4 ). Use Simplify3D to cut the 3D model, save it as a .gcode file, and import it to the 3D printer.

[0086] (2) Refractory material waste (mainly magnesium oxide, chromium oxide) and smelting waste residue (mainly aluminum oxide, silicon oxide, calcium oxide) make up about 80% in total. After crushing, screening and iron removal, mullite, bentonite and titanium oxide powder are added in a total of about 20%. After initial mixing with stirring, the mixed powder obtained by ball milling for 30 hours has a particle size of 0.5 μm. Add sodium polyphosphate 0.2%, tetramethylammonium hydroxide 0.5%, glycerin 5%, carboxymethyl cellulose 1.0%, PVA binder 0.8%, defoamer Z-3290 ceramic slu...

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Abstract

The invention provides a spatially ordered frame structure ceramic-metal composite material and a preparation method thereof, and belongs to the technical field of a ceramic-metal composite material.The preparation method comprises the following steps: acquiring 3D printing slicing data according to a predetermined ceramic forming structure; preparing ceramic powder slurry to perform 3D clay printing to form a blank; sintering the blank to obtain a ceramic substrate and performing surface film covering treatment; and compounding a metal material and the ceramic substrate with a metal castingmethod or a powder metallurgy method. By the 3D clay rapid integrated formation printing method, spatially ordered frame structure ceramic with high size precision, high surface quality and excellentmechanical property can be manufactured; and the method is suitable for formation of various single-phase or complex-phase ceramic materials. The ratio of the ceramic to the metal can be adjusted randomly, the microstructure can be controlled, the properties of the composite material can be designed, the advantages of high rigidity, high hardness and high impact toughness are achieved, and excellent friction resistance and heat resistance are shown up.

Description

technical field [0001] The invention belongs to the technical field of ceramic-metal composite materials, and in particular relates to a ceramic-metal composite material with a spatially ordered frame structure and a preparation method thereof. Background technique [0002] Ordered frame structure ceramic-metal composites are synthesized by injecting metal into ordered frame structure ceramics, and an interpenetrating ordered frame structure and interpenetrating structure are formed between the ceramic reinforcement and the metal matrix. This type of interpenetrating phase composite material It is referred to as IPC material (Interpenetrating Phase Composite). The interpenetrating and interpenetrating relationship between the ceramic reinforcement phase and the metal matrix phase strengthens the ability of the material to resist various damages, and makes the ordered frame structure ceramic-metal composite material have special physical, chemical and mechanical properties. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/622B28B1/00B22F7/06
CPCB22F7/062B28B1/001C04B35/622C04B2235/6026
Inventor 喻亮姜艳丽何福明孟征兵康晓安
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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