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Silicon nitride (Si₃N₄) is a high-tensile compound with high mechanical and physicochemical characteristics. It is widely used in ceramic, cutting tool, refractory materials industry etc. Refractory materials additiezed with silicon nitride possess high thermostability and resistance. Thanks to silicon nitride fines performance properties of refractory materials based on silicion carbide, periclase, forsterite etc. Refractory materials based on nitride bond are characterized with high thermoresistance and durability, possess excellent stress cracking resistance, acid and alkalis attack, aggressive melts and metallic vapor exposure.

Silicon nitride is produced by combustion synthesis (SHS) under high pressure of nitrogen (up to 20 MPa).

Other refractory materials

• Ferrosilicon nitride NITRO-FESIL^® N30
• Antioxidants for carbon-bearing refractory materials BorTiX^®