Gel-casting 3D printing preparation method for ceramic gradient material

A gradient material and 3D printing technology, applied in the direction of ceramic molding machines, manufacturing tools, etc., can solve the problems of lack of preparation methods for ceramic gradient materials and limit the development of ceramic gradient materials, and achieve the effect of saving raw materials, avoiding waste, and improving work efficiency

Inactive Publication Date: 2015-04-08
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The lack of convenient preparation methods for ceramic gradient materials is an important reason for limiting the further development of ceramic gradient materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The steps of the present invention are:

[0058] 1) modeling

[0059] First use computer modeling software to model, and then "partition" the built 3D model into sections with a thickness of 20μm, that is, slices, so as to guide the printer to print layer by layer;

[0060] 2) Calculate the ratio

[0061] According to the composition design requirements of the ceramic gradient material, calculate the component distribution ratio of different positions of the ceramic gradient structure, and input it into the computer as a variable to control the powder feeding ratio of different positions during printing;

[0062] 3) Set print parameters

[0063] Set the printing speed to 0.05m / s, the printing resolution to 20μm, and the powder feeding amount to 0.02mm 3 / s ；

[0064] 4) Raw material preparation

[0065] ZrO with a particle size of 0.1 μm 2 with a Y of 0.3µm 2 o 3 After pretreatment, the ceramic powder components are put into the feeding cylinder in the feeder; ...

Embodiment 2

[0072] The steps of the present invention are:

[0073] 1) modeling

[0074] First use computer modeling software to model, and then "partition" the built 3D model into sections with a thickness of 50 μm, that is, slices, so as to guide the printer to print layer by layer;

[0075] 2) Calculate the ratio

[0076] According to the composition design requirements of the ceramic gradient material, calculate the component distribution ratio of different positions of the ceramic gradient structure, and input it into the computer as a variable to control the powder feeding ratio of different positions during printing;

[0077] 3) Set print parameters

[0078] Set the printing speed to 0.1m / s, the printing resolution to 50μm, and the powder feeding amount to 0.25mm 3 / s;

[0079] 4) Raw material preparation

[0080] SiC with a particle size of 1 μm and TiC ceramic powder with a particle size of 0.8 μm are pretreated and put into the feeding cylinder in the feeder respectively; m...

Embodiment 3

[0087] The steps of the present invention are:

[0088] 1) modeling

[0089] First use computer modeling software to model, and then "partition" the built 3D model into sections with a thickness of 100μm, that is, slices, so as to guide the printer to print layer by layer;

[0090] 2) Calculate the ratio

[0091] According to the composition design requirements of the ceramic gradient material, calculate the component distribution ratio of different positions of the ceramic gradient structure, and input it into the computer as a variable to control the powder feeding ratio of different positions during printing;

[0092] 3) Set print parameters

[0093] Set the printing speed to 0.5m / s, the printing resolution to 100μm, and the powder feeding amount to 5mm 3 / s;

[0094] 4) Raw material preparation

[0095] AlN with a particle size of 8 μm and Si with a particle size of 10 μm 3 N 4 After pretreatment, the ceramic powder components are put into the feeding cylinder in th...

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Abstract

The invention discloses a gel-casting 3D printing preparation method for ceramic gradient material. The gel-casting 3D printing preparation method for the ceramic gradient material includes steps that 1) building a computer three-dimensional sketch map of the ceramic gradient material, slicing, and building a scanning route; 2) calculating ingredient proportions of different positions; 3) setting corresponding printing parameters; 4) preparing ceramic ingredient, organic monomer, cross-linking agent, initiator, catalyst and the like; 5) starting printing equipment to perform sol-gel 3D printing, pouring the ceramic ingredient, organic premixed liquid, initiator and catalyst to a printing head, and printing to form according to a set track and a set speed after mixing; 6) sintering the green body to prepare the ceramic gradient material. The gel-casting 3D printing preparation method for the ceramic gradient material has advantages that the gradient distribution for the ingredients is really realized through using a computer to control the ingredient proportions at different positions; the 3D printing technology belongs to a material increase preparing method, compared with a traditional technique, raw material is saved.

Description

technical field [0001] The invention relates to a gel injection molding 3D printing preparation method of a ceramic gradient material, which belongs to the field of material preparation. Background technique [0002] Gradient functional materials are different from homogeneous materials and composite materials. It selects two (or more) materials with different properties, and continuously changes the composition and structure of the two (or more) materials to make the interface disappear. The performance of the material changes slowly with the composition and structure of the material, forming a gradient functional material. [0003] From the combination of materials, FGM can be divided into metal / alloy, metal / non-metal, non-metal / ceramic, metal / ceramic, ceramic / ceramic and other combinations, so a variety of materials with special functions can be obtained. [0004] Ceramic materials have been widely used in electronics, machinery, national defense and other industrial fie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/00B28B11/24C04B35/505C04B35/56C04B35/584C04B35/14C04B35/26
CPCB28B1/001B28B11/243C04B35/14C04B35/26C04B35/505C04B35/5611C04B35/584
Inventor 彭晓领徐靖才李静杨艳婷王新庆葛洪良
Owner HARBIN UNIV OF SCI & TECH
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