High Purity Silicon Nitride Powder

We are exporting, manufacturing & supplying Silicon NItride Powder from Zibo, Shandong, Sheng, China. Silicon nitride powder is widely used in iron and steel metallurgy, refractory materials, non-ferrous casting and other industries, can significantly improve the refractory high temperature resistant performance of materials; At the same time also more and more widely used in wear-resistant rubber, sealing materials, abrasive and other industries. PhysicalA andA chemicalA indexi Si3N4% N% Ca% Al% Fe% C% O% 85 34 a 0.6 a 0.8 a 1 a 1.5 a 2.5 90 36 a 0.3 a 0.3 a 0.5 a 1 a 2 95 38 a 0.4 a 0.4 a 0.4 a 1 a 2 99 39.5 a 0.1 a 0.1 a 0.1 a 0.5 Featuresi 1,excellent corrosion resistance and heat shock resistance 2,good anti-division property, stable chemical composition 3,low thermcal expansion coefficient 4,good oxidation resistance at high temperature