Silicon Nitride Reaction Bonded Tube
Cast in the form of tubes, Silicon Nitride is used most often as ceramic thermocouple protection tubes used for melting aluminum. Silicon Nitride thermocouple protection tube sheaths are used extensively for continuous temperature measurement in nonferrous metals. RBSN tubes are also used in holding furnaces, pouring troughs, in heater tubes and in degassing pipes. The material is used in aluminum foundries, and assists in the casting of products.