Forming and Sintering Behavior of B- and C-Doped α and β-SiC

The effects of forming pressure and sintering temperature on shrinkuge, density, and phase composition of α- and β-SiC were determined. Alpha SiC developed the 4H phase at the expense of the 6H phase at >2150°C. The beta form converted to the 6H phuse at >2000°C, with intermediate development of the 15R and 4H phases