chemical stability and corrosion resistance of silicon nitride

Excellent Corrosion Resistance

Silicon nitride has extremely high chemical stability in corrosive environments such as acids and alkalis, and is particularly resistant to chemical degradation or oxidation at high temperatures. This makes silicon nitride an ideal material for the chemical and metallurgical industries, such as pumps, valves, and other components, which can effectively resist the erosion of corrosive media and ensure long-term stable performance.

Antioxidant Properties

Silicon nitride has good oxidation resistance in a high-temperature oxidizing environment and can effectively resist damage to the oxidizing atmosphere. For example, at high temperatures of more than 1200°C, a dense silica film will form on the surface of the silicon nitride, which will protect the substrate. This makes silicon nitride suitable for use in extreme environments such as high-temperature resistors, sensors, and thermocouple bushings.