Microstructure of Short Carbon Fiber/Si_3N_4-Reinforced BAS Glass-Ceramic Matrix Composites

摘要

Compact short carbon fiber and silicon nitride particles co-reinforced BAS (barium-aluminosilicate) composites were synthesized by hot-pressed. Phase compositions and microstructures of these composites were characterized by means of XRD and SEM methods. The results showed that BAS was benefit to the densification and partially realize the a→β-Si_3N_4 phase transformation. Definite orientation of the carbon short fibers was observed in the BAS matrix.