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Preparation method for slip casting of high-density AZO target material

A grouting, high-density technology, applied in the field of zinc oxide target preparation, can solve the problems of low target density, high cost, low yield, etc., and achieve the effect of simple technical route and low cost

Inactive Publication Date: 2017-08-11
ANHUI TUOJITAI NOVEL CERAMIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for producing a high-density AZO target by double dispersant grouting molding, which solves the problems of low yield, high cost and low relative density of the prepared target in the preparation process of the existing AZO target

Method used

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  • Preparation method for slip casting of high-density AZO target material
  • Preparation method for slip casting of high-density AZO target material
  • Preparation method for slip casting of high-density AZO target material

Examples

Experimental program
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Effect test

Embodiment 1

[0026] This embodiment provides a method for preparing a high-density AZO target by slip casting, which includes the following steps:

[0027] (1) Premix preparation: mix zinc oxide powder and aluminum oxide powder with a weight ratio of 100:4 evenly to obtain a mixed material, add the mixed material into a nylon tank, and put the mixed material into a nylon tank based on the weight of the mixture as 100%. Add 2.2% dispersant and 30% water, adjust the pH value to 9.5 with ammonia or acetic acid; the viscosity of the premix is ​​38mPa·s (room temperature, 20s -1 );

[0028] (2) Preparation of the suspension slurry: the premixed liquid is wet-milled to prepare the suspension;

[0029] (3) Green body molding: vacuum degass the ball milled slurry, inject the degassed slurry into the plaster mold; remove the mold after suction molding, and dry the green body for more than 72 hours to obtain the AZO green body (see figure 1 );

[0030] (4) Degreasing: place the demolded AZO bisqu...

Embodiment 2

[0037] This embodiment provides a method for preparing a high-density AZO target by slip casting, which includes the following steps:

[0038] (1) Premix preparation: mix zinc oxide powder and aluminum oxide powder with a weight ratio of 100:3 evenly to obtain a mixed material, add the mixed material into a nylon tank, and pour the mixed material into a nylon tank based on the weight of the mixture as 100%. Add 3.0% dispersant and 20% water, adjust the pH value to 10.3 with ammonia or acetic acid; the viscosity of the premix is ​​37mPa·s (room temperature, 20s -1 );

[0039] (2) Preparation of the suspension slurry: the premixed liquid is wet-milled to prepare the suspension;

[0040] (3) Green body forming: vacuum degassing the ball-milled slurry, injecting the degassed slurry into the plaster mold; removing the mold after suction molding, drying the green body for more than 72 hours to obtain the AZO green body;

[0041] (4) Degreasing: put the demoulded AZO biscuit in a d...

Embodiment 3

[0047]This embodiment provides a method for preparing a high-density AZO target by slip casting, which includes the following steps:

[0048] (1) Premix preparation: Mix zinc oxide powder and aluminum oxide powder with a weight ratio of 100:5 evenly to obtain a mixed material, add the mixed material into a nylon tank, and pour the mixed material into a nylon tank based on the weight of the mixture as 100%. Add 1.5% dispersant and 35% water, adjust the pH value to 8.5 with ammonia or acetic acid; the viscosity of the premix is ​​35mPa·s (room temperature, 20s -1 );

[0049] (2) Preparation of the suspension slurry: the premixed liquid is wet-milled to prepare the suspension;

[0050] (3) Green body forming: vacuum degassing the ball-milled slurry, injecting the degassed slurry into the plaster mold; removing the mold after suction molding, drying the green body for more than 72 hours to obtain the AZO green body;

[0051] (4) Degreasing: put the demoulded AZO biscuit in a deg...

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Abstract

The invention discloses a preparation method for slip casting of a high-density AZO target material. The preparation method comprises the following steps that zinc oxide powder and aluminum oxide powder are evenly mixed to obtain mixed materials, the mixed materials are added into a nylon tank, a dispersing agent and water are added, and a pH value is regulated to 8.5-10.3 by using ammonia water or acetic acid; the premixed solution is subjected to ball milling to prepare suspension liquid slurry; the slurry obtained through ball milling is subjected to vacuum degassing, the slurry obtained after vacuum degassing is injected into a plaster mold; demolding is performed after slurry sucking and molding, a blank is air-dried for more than 72 hours; degreasing is performed after curing to obtain an AZO blank; the blank is sintered to obtain the AZO target material. A slip casting forming process and a pressure-less AZO target material sintering process are adopted, and the high-density AZO target material can be prepared in a low-cost mode.

Description

technical field [0001] The invention relates to the technical field of zinc oxide target material preparation, in particular to a method for preparing a high-density AZO target material by slip casting. Background technique [0002] In recent years, with the development of liquid crystal displays and solar cells, transparent conductive films have become one of the key materials. At present, the commonly used transparent conductive film material is mainly ITO. In recent years, due to the substantial increase in the demand for liquid crystal displays and solar cells; the demand for mobile phones and touch screens has increased rapidly. How to reduce the material cost of transparent conductive thin films and improve the performance of thin film materials has become the primary goal at present. However, due to the scarcity of indium resources and the increase in price, scholars from all over the world are eager to find a new generation of transparent conductive thin film mater...

Claims

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Application Information

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IPC IPC(8): C04B35/453C04B35/622C04B35/634
CPCC04B35/453C04B35/622C04B35/63404C04B35/63448C04B2235/3217C04B2235/6022C04B2235/606C04B2235/656C04B2235/6562C04B2235/6567C04B2235/77C04B2235/782C04B2235/785
Inventor 张天舒宋晓超陈晨钱邦正
Owner ANHUI TUOJITAI NOVEL CERAMIC TECH
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