Thermo-mechanical property enhancement plies for CVI/SiC ceramic matrix composite laminates

摘要

A ceramic matrix composite laminate (114) includes at least two directional, continuous ceramic fiber preform lamina each being formed of interwoven or braided fibers. A layer of non-woven mat includes a plurality of chopped ceramic fibers (118) mixed with a bonding agent. The non-woven mat layer is interposed between adjacent directional, continuous ceramic fiber preform lamina to substantially eliminate inter-laminar gaps formed between the adjacent directional, continuous ceramic fiber preform lamina. The additional chopped fiber content improves the interlaminar mechanical and thermomechanical material properties of resulting ceramic matrix composite laminate (114).