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What is the Silicon Nitride used for?

Silicon Nitride.

Silicon nitride has an inorganic chemical composition with Si3N4. It is a key structural ceramic material. The material can also withstand the heat and chill shocks. You can heat the ceramic to more than 1,000°C, but it won't melt if you quickly cool it and then heat again. The excellent properties of silicon-nitride ceramics is why it's often used in the manufacture of mechanical components, such as bearings. A silicon nitride-ceramics heat-receiving layer for engine components that is resistant to high heat and difficult to transmit heat can help improve the quality of diesel engines as well as save fuel.

For what purpose is Silicon Nitride?

Silicon nitride serves as a highly-grade refractory. For example, SI3N4 SIC refractory is combined with sic. This fine-structure ceramic material is known for its uniformity and mechanical strength. It's also called the SI3N4BN-BN series horizontal continuously casting separation ring. The material meets continuous casting technology requirements and has excellent thermal shock resistance.


Materials made of silicon nitride are extremely stable in temperature, resistant to oxidation, and have high dimensions. Covalent compounds with high bond strength can create an oxide protective shield in the atmosphere. Silicon nitride also exhibits good chemical stability. It doesn't oxidize, so it won't be affected by any molten metals.


These ceramic materials from silicon nitride are suitable for use in high temperature engineering components, advanced and complex refractory materials, chemical industry corrosion-resistant materials, cutting tools, and sealing parts in chemical industry.


The strong bond that silicon nitride makes with silicon carbide aluminum dioxide, thorium oxide, boron and thorium nitride allows it to be used in a variety of modification processes.


You can use silicon nitride in solar cells. When the silicon nutride film has been coated with the PECVD procedure, it can serve as an antireflection film that reduces incident light. However, during the process of deposition of silicon nitride, the hydrogen molecules of the reaction products enter both the silicon nanorode and the silicon wafer. These acted as passivation defect. However, this atomic relationship of silicon silicon nitride with silicon nitride does not necessarily equal 4:3. It is subject to fluctuations due to process conditions. Also, different physical properties of films that correspond to different atomic relationships can have different physical characteristics.


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