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What is Silicon Nitride (HTML0)?
Inorganic silicon nitride has the chemical formula Si3N4. It is a ceramic structural material with high hardness. It has atomic crystals, a high wear resistance and inherent lubricity. Moreover, the material can withstand both cold and heat. It will not break if you heat it to over 1000 degrees Celsius in the air. Then, 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.
Silicon Nitride Application:

Silicon nitride ceramics have excellent properties including high thermal resistance, high oxidation resistant and high product accuracy. Silicon nitride has a good chemical stability because it is a covalent, high-bonding compound that can form oxidizing films in the air. It cannot be oxidized under 1200degC. It can be prevented from oxidizing further by the formation of a protective layer between 1200degC and 1600degC.

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 machining field, etc.

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. Not only can it be used as a film that reduces the reflection of light incident, but the hydrogen atoms in the reaction products enter the silicon-nitride and silicon wafer during the deposition. The ratio between silicon nitride and silicon atoms does not always follow a 4:3 ratio, but can vary within a specific range. The film’s physical properties are different for different atomic proportions.

Silicon nitride is widely used for its excellent electrical, thermal, and mechanical properties.

Tech Co., Ltd. () has over 12 years’ experience in chemical product development and research. Contact us to send an inquiry if you are interested in high-quality Silicon nitride.