SIC90
►High in hardness.
►Strong in cutting ability.
►Stable in chemical property.
►Green silicon carbide thermal conductivity-Good in thermal conductivity.
Description
ZhenAn International Co., Limited is one of the most reliable manufacturers and suppliers of sic90 in China. With abundant experience, we warmly welcome you to wholesale discount sic90 in stock here from our factory. Quality products and reasonable price are available.
Description
What are the applications of silicon carbide SIC90 in refractory materials?
Wear resistance of silicon carbide SIC90 in refractory materials.
The hardness of silicon carbide is second only to diamond, and it has strong wear resistance. It is an ideal material for wear-resistant pipes, impellers, pump chambers, cyclones, and linings of ore buckets. Its wear resistance is 5 times longer than that of cast iron and rubber. -20 times, it is also one of the ideal materials for aviation runways. Using a special process to coat silicon carbide powder on the inner wall of the turbine impeller or cylinder block can improve its wear resistance and extend its service life by 1 to 2 times.
Specification
| Grade | Chemical Composition % | ||
| SiC | F.C | Fe2O3 | |
| ≥ | ≤ | ||
| SiC98 | 98 | 0.30 | 0.80 |
| SiC97 | 97 | 0.30 | 1.00 |
| SiC95 | 95 | 0.40 | 1.00 |
| SiC90 | 90 | 0.60 | 1.20 |
| SiC88 | 88 | 2.5 | 3.5 |
Thermal shock resistance of silicon carbide SIC90 in refractory materials.
Due to the high thermal conductivity and small thermal expansion coefficient of silicon carbide, this silicon carbide refractory material has very good thermal shock resistance. The thermal shock resistance of silicon carbide products is also closely related to the type and nature of the bonding base material. Test proof: quickly put the sample into an electric furnace at 1200°C and heat it for 20 minutes, then take it out and cool it in the air to measure the change in elastic modulus. The elastic modulus of silicate-bonded silicon carbide products shows a relatively gentle and gradual downward trend as the number of hot and cold shock tests increases.
However, the elastic modulus of silicon nitride-bonded silicon carbide products is different. Before 30 cold cycle tests, its elastic modulus The modulus changes very little with the increase in the number of thermal shock tests and can maintain a fairly constant value. However, after 31 thermal shock tests, the elastic modulus of the sample dropped rapidly and suffered sudden damage.
Silicon oxynitride-bonded silicon carbide products are similar to silicate-bonded silicon carbide products. There is no sudden damage, and the elastic modulus shows a gentle downward trend with the increase in the number of thermal shock tests. In actual application, since silicate-bonded silicon carbide products can be observed to expand, crack, and deform after being subjected to thermal shock, the service life of the material can be easily predicted.
FAQ
Q: Are you a factory or a trading company?
A: We are manufacturer.
Q: How long is your delivery time?
A: Delivery time depending on your purchasing quantity and production season.
Q: What's your delivery way?
A: Express delivery, sea shipping are available for your request.
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