CERAMIC FORMING POLYMER DERIVED CERAMIC COMPOSITE AND METHODS

摘要

A ceramic composite having a ceramic coating formed from a ceramic forming polymer of adjustable composition. The ceramic forming polymer is capable of producing a weak interface-type fiber coating for the ceramic composite, resists oxidation and is less expensive to apply. The invention also includes methods of using a ceramic forming polymer to provide fiber coatings tailored to the type of matrix, fiber, or other reinforcement used. The material forms micro-porous and nano-porous coatings on the fibers. The porosity in the coatings provides a low strength interface between the fiber and matrix that imparts the toughness needed in the composite. The material can be provided with controlled ratios of carbon, silicon, oxygen and hyrdrogen to optimize bonding to the fibers, bonding of the matrix to the fiber coating, and environmental protection of the fibers.