Silicon nitride is a chemical compound of silicon and nitrogen (Si3N4) from the class of nitrides.
The Material is characterised by a range of properties that make it a very interesting choice for industrial applications. Thanks to its high strength and low thermal expansion coefficient, the material is ideally suited to alternating thermal stresses.
Even at temperatures of around 1,000 °C, silicon nitride can still transmit very high forces and is therefore extremely well suited to soldering and welding applications. Its high hardness and good surface mean that silicon nitride is also a suitable material for tools used for sheet metal forming.