Fabrication and properties analysis of Cf–CNT/SiC composite

2D Cf–CNT/SiC composite was fabricated by the hand-lay-up-molding–PIP method, with carbon fiber coated with carbon nanotubes (CNTs) as reinforcement. Chemical vapor deposition (CVD) was conducted to obtain a homogeneous dispersion of CNTs on carbon fiber with Al2O3 as a catalyst promoter, which adhered to the carbon fiber together with a catalyst precursor impregnated in Fe(NO3)3·9H2O and Al(NO3)3·6H2O solutions. The results showed that the interlaminar shear strength (ILSS) of Cf–CNT/SiC composite increased by 100.9% and the thermal conductivity in the orientation perpendicular and parallel to the carbon fiber direction increased by 24.3% and 78% respectively compared to the Cf/SiC composite.