SiC-Fiber Reinforced Silicon Carbide-Based Ceramic Composite.

Dense silicon carbide-based ceramic composites reinforced with SiC_f fiber have been produced by hot pressing at a temperature of 1850°C. The reinforcing agent used was silicon carbide fiber produced by siliciding carbon cloth with SiO vapor. It has been shown that raising fiber content from 1 to 7 wt % increases the density, bending strength, and fracture toughness of the material, which reach ρ = 3.20 ± 0.01 g/cm³, δ_b = 450 ± 26 MPa, K_Iс = 5.6 ± 0.1 MPa m^1/2 at 7 wt % SiC fiber. [ABSTRACT FROM AUTHOR]