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Silicon nitride is an important structural ceramic materia which has excellent wear resistance and lubricity. Silicon nitride is an atomic crystal,resistant to oxidation and thermal shocks at high temperatures. Even iti is heated to over 1000°C in the air,it will not break,and cooled rapidly. Because of excellent properties of silicon nitride ceramics ,it is often used to make mechanical components such as bearings, turbine blades, mechanical seal rings, and permanent molds.
Silicon nitride rods play an important role in optical fiber preparation. The features such as high refractive index, low loss and excellent stability make silicon nitride ceramic an ideal choice for efficient optical coupling. Although the process complexity and high cost , with technology innovation and process optimization,the application prospects of silicon nitride rods in optical fiber preparation will be better and better.
