Abstract
High strength reaction-bonded silicon carbide ceramics have been fabricated in near-net-dimension by eliminating process shrinkages. Forming shrinkages were decreased to negligible level by thermoset molding, while sintering shrinkage was eliminated by reaction infiltration. Carbon black was incorporated with the silicon carbide/resin preform and reaction infiltration was completed using a concept of contact infiltration which established planar contacts between the preform and reservoir with subdued liquid agglomeration. Flexural strength was significantly enhanced with the increase of carbon black addition.Joining was employed, furthermore, to fabricate a large and complex sample by applying a rapidly curing paste.
