PRODUCTION OF SILICON CARBIDE-BASED MATERIAL

摘要

PURPOSE:To provide a method for producing a high-density and high-strength silicon carbide-based material without any deformation, dimensional change and defects in impregnating the material with silicon and sintering the impregnated material. CONSTITUTION:Silicon carbide powder or a mixed substance of the silicon carbide powder and carbon powder is used as a raw material, formed into a prescribed shape and burned at 1600-2500 deg.C temperature in an inert gas atmosphere under reduced pressure or a nonoxidizing atmosphere such as a vacuum. The burned body is then impregnated with molten silicon.