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Stannic oxide electrode ceramic material as well as preparation method thereof

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

Active Publication Date: 2015-04-29
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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  • Stannic oxide electrode ceramic material as well as preparation method thereof
  • Stannic oxide electrode ceramic material as well as preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh according to the following ratio of raw materials: main ingredient 100kg of tin dioxide powder (purity 99%), additive 0.2kg of copper oxide (purity 99%), 0.4kg of zinc oxide (purity 99%) 1.1kg of trioxide Antimony (purity 99%), 0.8kg of bismuth subcarbonate, 3kg of sodium silicate aqueous solution with a Baume degree of 52%; 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 wet mixing for 5 hours, and then use Air flow sieve, sieve through 600-mesh screen three times continuously, put into rubber mold with steel mold after sieving, cold isostatic pressing, hold pressure at 160MPa-200MPa for 3-5 minutes, and press to obtain green body. Body trimming: repair and smooth the surface of the green body;

[0028] Drying: low-humidity dryin...

Embodiment 2

[0031] Weigh according to the following ratio of raw materials: main ingredient 100kg of tin dioxide powder (purity 99%), additive 0.3kg of copper oxide (purity 99%), 0.5kg of zinc oxide (purity 99%) 1.2kg of trioxide Antimony (purity 99%), 1.3kg of bismuth subcarbonate, 3.5kg of sodium silicate aqueous solution with a Baume degree of 52%; 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 wet mixing for 5 hours, and then use Air flow sieve, sieve through 600-mesh screen three times continuously, put into rubber mold with steel mold after sieving, cold isostatic pressing, hold pressure at 160MPa-200MPa for 3-5 minutes, and press to obtain green body. Body trimming: repair and smooth the surface of the green body;

[0032] Drying: low-humidity dry...

Embodiment 3

[0035] Weigh according to the following ratio of raw materials: main ingredient 100kg of tin dioxide powder (purity 99%), additive 0.5kg of copper oxide (purity 99%), 0.8kg of zinc oxide (purity 99%) 1.4kg of trioxide Antimony (purity 99%), 1.5kg of bismuth subcarbonate, 5kg of sodium silicate aqueous solution with a Baume degree of 52%; 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 wet mixing for 5 hours, and then use Air flow sieve, sieve through 600-mesh screen three times continuously, put into rubber mold with steel mold after sieving, cold isostatic pressing, hold pressure at 160MPa-200MPa for 3-5 minutes, and press to obtain green body. Body trimming: repair and smooth the surface of the green body;

[0036] Drying: low-humidity dryi...

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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. The invention relates to a practical preparation method of tin dioxide electrode conductive ceramics. Background technique [0002] 1. Chinese Invention Patent Publication CN101948304A (Application No. 201010266905.5) provides a preparation method of tin dioxide electrode. Its preparation method is as follows: 1), wet mixing by ball milling, 2), drying and sieving, 3), cooling, etc. Static pressure molding, 4), vacuum and oxygen sintering. 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 and drying equipment, but also prolongs the production cycle. Increased production costs. Vacuum and add oxygen for sintering. Also increases the production cost. The price of vacuum sintering furnace is higher than ordinary sintering furnace. Adding oxygen to sintering increases the di...

Claims

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Application Information

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