| 摘要 |
PURPOSE: To easily obtain a sintered compact having a specific complicated three- dimensional shape in a good yield without using an expensive mold by curing and molding a slurry containing silicon carbide powder and a thermosetting resin under the irradiation of IR light and subsequently sintering the molded product. CONSTITUTION: The method for producing the silicon carbide-carbon sintered compact and the silicon carbide-silicon composite material comprises mixing 100 pts.wt. of silicon carbide powder having an average particle diameter of 0.5-50μm with 5-100 pts.wt. of a thermosetting resin such as a melamine resin or a phenolic resin, a curing accelerator, a binder, if necessary, a molding auxiliary and a solvent high in compatibility and volatility and low in viscosity with stirring, molding and curing the prepared slurry into a desired shape under the irradiation of IR light, washing the obtained silicon carbide cured molded product with a low boiling point solvent, drying the washed molded product, sintering the product at 1400-1800 deg.C under an inert gas atmosphere of Ar or N2 , and subsequently treating the obtained silicon carbide-carbon sintered compact with molten silicon under the inert gas atmosphere or under vacuum into the silicon carbide-silicon composite material. |
