Mechanical Properties of Unidirectionally Reinforced Carbon-SiC Composite Fabricated by Hot Press Sintering Method (2)

Abstract

SiC composites (Cf/SiC) reinforced with unidirectionally oriented carbon fibers were fabricated by various hot-press sintering conditions. The flexural strengh of Cf/SiC composites at 1250°C (628-721MPa) was higher than that of Cf/SiC composites at room temperature (517-554MPa). The flexural strengh of Cf/SiC composites at 1250°C was increased by delaying the starting point for increasing the pressure from low temperature to high temperatures.