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Overview of Silicon Nitride

wallpapers News 2021-07-23
Overview of Silicon Nitride
Silicon nitride is an important structural ceramic material and a superhard material.
Because of its lubricity, wear resistance, atomic crystal, oxidation resistance at high temperature, cold and hot impact resistance, people often use it to manufacture mechanical components such as bearings, turbine blades, mechanical seal rings, permanent molds and so on.
Silicon Nitride Crystal structure
Silicon nitride (Si3N4) has three kinds of crystal structure, which are α、β and γ three-phase. α and β Two phase is the most common form of Si3N4 and can be prepared at atmospheric pressure. γ The phase can be synthesized only under high pressure and high temperature, and its hardness can reach 35gpa.
Silicon Nitride Chemical properties
Except for hydrofluoric acid, it does not react with other inorganic acids (reaction equation:  Si3N4+12HF═3SiF4↑+4NH3↑and has strong corrosion resistance.
Silicon Nitride’s application
Silicon nitride is used as advanced refractory, such as Si3N4-SiC refractory combined with SiC, which is used in blast furnace shaft and other parts; For example, si3n4-bn material is used for horizontal continuous casting separation ring. Si3n4-bn horizontal continuous casting separation ring is a kind of fine structure ceramic material with uniform structure and high mechanical strength. It has good heat shock resistance and will not be wetted by molten steel, which meets the requirements of continuous casting process.
Silicon Nitride supplier
TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global Silicon nitride supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. Currently, our company has successfully developed a series of materials. The Silicon nitride produced by our company has high purity, fine particle size and impurity content. For the latest price of Silicon nitride, send us an email or click on the needed products to send an inquiry.

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