STAR ® FERRO SILICON NITRIDE is a new material, which is designed for refractory application mainly used for Tap Hole clay mud refractory manufacturing and is btained by nitriding a mixture of high grade ferrosilicon and metallic alloys.
STAR ® FERRO SILICON NITRIDE is synthesized in special reactors under pressure 10 MPa and temperature about 2000 °C which gives it a unique combination of chemical properties. It is grey white in color and produced by SHS Technology containing special structure of β-Si3N4.
BENEFITS OF STAR ® FERRO SILICON NITRIDE FOR REFRACTORIES:
STAR ® FesiN increases the strength and wear resistance of the Taphole clay mud refractory at high temperature.
STAR ® FesiN increases thermal stability and resistance to oxidation.
STAR ® FesiN reduces the thermal-expansion coefficient, with simultaneous increase in thermal conductivity
STAR ® FesiN provides more resistance to abrasion by the hot metal and the slag.
With the addition of STAR ® FesiN, the taphole clay mud refractory does not shrink on repeated heating.
STAR ® FesiN increases erosion resistance against liquid iron, therefore increasing the holding time of the blast furnace.