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

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...

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

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