A kind of tin dioxide electrode ceramic material and preparation method thereof

A technology of tin dioxide and ceramic materials, applied in the field of semiconductor ceramics, can solve the problems of increasing drying equipment, increasing the drying process, prolonging the production cycle, etc., achieving the effects of less production equipment, increasing volume density, and enhancing corrosion resistance

Active Publication Date: 2019-01-04
HUBEI DERUI SITONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: the ball milling time is 24 hours long, and the powder becomes slurry after ball milling, which not only increases the drying process, but also increases the drying equipment, and prolongs the production cycle
The disadvantages are: the ball milling time is long, and the powder becomes mud after ball milling, which not only increases the drying process, but also increases the drying equipment, and prolongs the production cycle.
The disadvantages are: the ball milling time is long, and the powder becomes mud after ball milling, which not only increases the drying process, but also increases the drying equipment, and prolongs the production cycle.
This production method is only suitable for small-scale production

Method used

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  • A kind of tin dioxide electrode ceramic material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh according to the following raw material ratios: 100 kg tin dioxide powder (purity 99%), 0.2 kg copper oxide (purity 99%), 0.4 kg zinc oxide (purity 99%) 1.1 kg trioxide Antimony (purity 99%), 0.8㎏ bismuth subcarbonate, 3㎏ Baume 52% sodium silicate aqueous solution; after dry mixing additive powder and tin dioxide powder in a weight ratio of 1:5 , And then put all the remaining tin dioxide powder into the V-shaped mixer for mixing, and then add the prepared sodium silicate aqueous solution with a Baume degree of 52% to the V-shaped mixer for 5 hours, and then use Airflow screen, 600 mesh screen is sieved continuously for three times, after sieving, it is put into a rubber mold with a steel mold, and cold isostatically pressed, 160MPa-200MPa pressure is maintained for 3-5 minutes, and a green body is pressed. Body trimming: repair and smooth the surface of the body;

[0028] Drying: low-humidity drying, the temperature is controlled between 120℃-200℃ for more than 24 ...

Embodiment 2

[0031] Weigh according to the following raw material ratios: 100 kg tin dioxide powder (purity 99%), 0.3 kg copper oxide (purity 99%), 0.5 kg zinc oxide (purity 99%) 1.2 kg trioxide Antimony (purity 99%), 1.3㎏ bismuth subcarbonate, 3.5㎏ Baume of 52% sodium silicate aqueous solution; after dry mixing the additive powder and tin dioxide powder in a weight ratio of 1:5 , And then put all the remaining tin dioxide powder into the V-shaped mixer for mixing, and then add the prepared sodium silicate aqueous solution with a Baume degree of 52% to the V-shaped mixer for 5 hours, and then use Airflow screen, 600 mesh screen is sieved continuously for three times, after sieving, it is put into a rubber mold with a steel mold, and cold isostatically pressed, 160MPa-200MPa pressure is maintained for 3-5 minutes, and a green body is pressed. Body trimming: repair and smooth the surface of the body;

[0032] Drying: low-humidity drying, the temperature is controlled between 120℃-200℃ for more...

Embodiment 3

[0035] Weigh according to the following raw material ratios: 100kg tin dioxide powder (purity 99%) as main ingredient, 0.5kg copper oxide (purity 99%) as additive, 0.8kg zinc oxide (purity 99%) and 1.4kg trioxide Antimony (purity 99%), 1.5㎏ bismuth subcarbonate, 5㎏ Baume 52% sodium silicate aqueous solution; after dry mixing the additive powder and tin dioxide powder in a weight ratio of 1:5 , And then put all the remaining tin dioxide powder into the V-shaped mixer for mixing, and then add the prepared sodium silicate aqueous solution with a Baume degree of 52% to the V-shaped mixer for 5 hours, and then use Airflow screen, 600 mesh screen is sieved continuously for three times, after sieving, it is put into a rubber mold with a steel mold, and cold isostatically pressed, 160MPa-200MPa pressure is maintained for 3-5 minutes, and a green body is pressed. Body trimming: repair and smooth the surface of the body;

[0036] Drying: low-humidity drying, the temperature is controlled ...

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Abstract

The invention relates to a stannic oxide electrode ceramic material as well as a preparation method thereof. The stannic oxide electrode ceramic material comprises the following components in parts by weight: 100 parts of stannic oxide, 0.1-0.3 part of copper oxide as an additive, 0.1-0.5 part of zinc oxide, 1.2-1.5 parts of antimonous oxide, 0.8-1.5 parts of bismuth subcarbonate and 3-5 parts of a sodium silicate aqueous solution. The preparation method comprises the following steps: fully mixing and stirring the raw materials; molding at a high pressure in isostatic pressing; sintering at a high temperature of 1500 DEG C by adding inert gas to prepare a stannic oxide electrode ceramic body with high density (over 6.5); and then machining to prepare a stannic oxide electrode. The stannic oxide electrode is an indispensable electrode material for producing high performance optical glass. The preparation method provided by the invention is simple in process, easy to operate, short in production period, low in production cost, stable and reliable in product quality and suitable for industrial production.

Description

Technical field [0001] The invention belongs to the technical field of semiconductor ceramics. It relates to a practical method for preparing tin dioxide electrode conductive ceramics. Background technique [0002] 1. The Chinese Invention Patent Publication CN101948304A (Application No. 201010266905.5) provides a method for preparing tin dioxide electrode. Its preparation method is as follows: 1), ball milling and wet mixing, 2), drying and sieving, 3), cooling, etc. Static pressure forming, 4), vacuum and oxygen sintering. The shortcomings are: the ball milling time is 24 hours long, and the powder becomes mud after ball milling, which not only increases the drying process, increases the drying equipment, but also extends the production cycle. Increased production costs. Vacuum and add oxygen for sintering. It also increases production costs. The price of vacuum sintering furnace is higher than that of ordinary sintering furnace. Adding oxygen to sintering increases the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/453C04B35/622
Inventor 黄曙光
Owner HUBEI DERUI SITONG TECH
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