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Inorganic silicon nitride has the chemical formula Si3N4. It is an important ceramic structural material, with high hardness. It has atomic crystals, high wear resistance and inherent lubricity. It is also resistant to the effects of both cold and heat. It will not break if you heat it to over 1000 in the atmosphere, cool it quickly and then heat it rapidly. Because of its excellent properties, silicon nitride is often used in the manufacture of bearings. turbine blades. mechanical seal rings. permanent molds. Silicon nitride is a ceramic that resists high temperatures, but also transfers heat poorly. It can therefore be used as the heating surface of engine components to improve quality, reduce fuel consumption, and increase thermal efficiency.
Ceramics made from silicon nitride are known for their excellent properties. These include high thermal stability, high oxidation resistant and high accuracy of product size. Silicon nitride has excellent chemical stability because it is a covalent, high-bonding compound that can form an oxygen protective film when exposed to air. It cannot be oxidized under 1200degC. A protective layer can be formed between 1200 and 1600degC. This will prevent further corrosion.
Silicon nitride is a ceramic material that can be used to make high-temperature components for engineering, advanced refractories for the metallurgical sector, sealing components and corrosion-resistant components in the chemical sector, cutting and tooling in the machine-tooling industry, and more.
It can be used to bond materials in different proportions.
Silicon nitride is also used in solar cells. It is possible to use the silicon-nitride coating after the PECVD process. This film can reduce the reflection of light and also act as an antireflection layer. The ratio between silicon nitride and silicon atoms does not always follow a 4:3 ratio, but can vary within a specific range depending on different processing conditions. The film’s physical properties are different for different atomic proportions.
Silicon nitride is widely used for its excellent electrical, thermal, and mechanical properties.
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