Transmission electron microscopy observation in a liquid-phase-sintered SiC with oxynitride glass

摘要

Using a pure α-SiC starting powder and an oxynitride glass composition from the Y-Mg-Si-Al-O-N system as a sintering additive, a powder mixture was hot-pressed At 1850 deg. C for 1 h under a pressure of 20 Mpa and further annealed at 2000 deg. C for 4 h In a nitrogen atmosphere of 0.1 Mpa.