METHOD FOR FABRICATION OF HIGH DENSITY SICF/SIC COMPOSITES WITH HOMOGENEOUS MICROSTRUCTURE

摘要

The present invention relates to a method for manufacturing a silicon carbide fiber-reinforced silicon carbide composite with an uniform microsturcture, and more specifically, to a method for manufacturing a silicon carbide fiber-reinforced silicon carbide composite (SiCf/SiC), which comprises the following steps: preparing a tubular silicon carbide (SiC) fiber preform (step 1); and forming a silicon carbide matrix phase in the preform by rotating the tubular silicon carbide fiber preform while supplying raw material gas to the outer and inner circumferential surfaces of the preform (step 2). The method for manufacturing the silicon carbide fiber-reinforced silicon carbide composite in accordance with the present invention can manufacture a high density composite having a microstructure with enhanced uniformity in a short time, thereby reducing costs for manufacturing processes compared to the conventional manufacturing method. In addition, the composite manufactured by the present invention can be used as a high strength/high toughness structural material for a gas turbine, aerospace, and a next generation nuclear reactor.