Manufacturing method of silicon carbide ceramics having high fracture toughness

摘要

The present invention relates to a method for producing silicon carbide ceramics having high fracture toughness, which is used for pickling rollers, bearings and the like, and is characterized in that titanium carbide (TiB₂) Particles are added in an amount of 10 to 20% by volume, and at the same time, 2% by weight of carbon and 0.5% by weight of boron are added and mixed as a sintering aid, and then the mixture is mixed with an inert gas atmosphere at 1950C to 2050C (SiC) ceramics having a high fracture toughness by a process of sintering under a pressure of 300 kg / cm 2 .