Suoyi High Purity 99.9% Si3n4 Powder Silicon Nitride for Ceramic or Refractory

Silicon nitride is an inorganic substance with chemical formula Si3N4. It is an important structural ceramic material, hardness, itself has lubricity, and wear resistance, for atomic crystal; Oxidation resistance at high temperature. And it can resist hot and cold shock, heating in the air to more than 1000 degrees Celsius, sharp cooling and sharp heating, will not shatter. Because of its excellent properties, SI3N4 ceramics are often used to manufacture bearings, turbine blades, mechanical sealing rings, permanent molds and other mechanical components. If the heating surface of engine parts is manufactured with silicon nitride ceramics which are resistant to high temperature and not easy to heat transfer, the quality of diesel engine can be improved, fuel saving and thermal efficiency can be improved.