Abstract: Disclosed is a polymer material comprised of at least one non-cyclic ceramic-forming polymer. The porosity and elemental composition of the resulting ceramic can be varied by inclusion of polymers with particular ratios of carbon, silicon, oxygen, and hydrogen and by manipulation of the conditions under which the polymer material is converted to a ceramic. The resulting ceramic may be useful in fiber-reinforced ceramic matrix composites (CMCs), semiconductor fabrication, fiber coatings, friction materials, and fire resistant coatings.

Abstract: Disclosed is a polymer material comprised of at least one non-cyclic ceramic-forming polymer. The porosity and elemental composition of the resulting ceramic can be varied by inclusion of polymers with particular ratios of carbon, silicon, oxygen, and hydrogen and by manipulation of the conditions under which the polymer material is converted to a ceramic. The resulting ceramic may be useful in fiber-reinforced ceramic matrix composites (CMCs), semiconductor fabrication, fiber coatings, friction materials, and fire resistant coatings.

Abstract: Disclosed is a polymer material comprised of at least one non-cyclic ceramic-forming polymer. The porosity and elemental composition of the resulting ceramic can be varied by inclusion of polymers with particular ratios of carbon, silicon, oxygen, and hydrogen and by manipulation of the conditions under which the polymer material is converted to a ceramic. The resulting ceramic may be useful in fiber-reinforced ceramic matrix composites (CMCs), semiconductor fabrication, fiber coatings, friction materials, and fire resistant coatings. A first aspect of the invention provides a compound of formula I wherein x is between about 0.75 and about 0.9, y is between about 0.05 and about 0.15, and z is between about 0.05 and about 0.20.

Abstract: 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.