Research of C/C-SiC Composites Prepared by Liquid Silicon Infiltration

The preparation methods and applications of silicon C/C-SiC composites by liquid silicon infiltration both at home and abroad were reviewed.It mainly analyzed the influence of the preparation of carbon fiber preform,porous carbon/carbon(C/C) composites and the process of infiltration of molten silicon on the C/C-SiC composites properties and structure,and introduced the application of C/C-SiC composites for hot structures in aerospace and advanced friction system.The current problems on the preparation and further research efforts of C/C-SiC composites were discussed.