Fabrication of Dense 2D SiC Fiber-SiC Matrix Composites by Slurry Infiltration and a Stacking Process

摘要

This paper reports a new process for producing dense 2D SiC fiber-SiC (SiC/SiC) composites through slurry infiltration and stacking. The processing strategy for the fabrication of the 2D SiC/SiC composites involves: (i) infiltration of the SiC fiber fabric using a SiC slurry, (ii) stacking the slurry-infiltrated SiC fiber fabric and SiC tapes alternately at room temperature, (iii) pyrolysis of the stacked composites and (iv) hot-pressing the pyrolyzed composites. It was possible to obtain dense 2D SiC/SiC composites with relative densities of >96 percent by controlling the hot-pressing time at 1750 deg C.