A reactive infiltration processing of SiC/Fe-Si composites using preforms made of coked rice husks (RHs) and SiC powder in different ratios is reported, in which FeSi2 alloy was used as infiltrant. The preforms were heat-treated at 1550 degrees C for 6 h prior to the infiltration. The coked RHs, which are composed of SiO2 and C, were converted to SiC and poorly crystallized C by carbothermal reduction during th...