Method of producing a ceramic fiber-reinforced glass-ceramic matrix composite

摘要

A fiber-reinforced composite composed of a B.sub.a O--Al.sub.2 O.sub.3 --2SiO.sub.2 (BAS) glass ceramic matrix is reinforced with CVD silicon carbide continuous fibers. A slurry of BAS glass powders is prepared and celsian seeds are added during ball melting. The slurry is cast into tapes which are cut to the proper size.PP Continuous CVD- SiC fibers are formed into mats of the desired size. The matrix tapes and the fiber mats are alternately stacked in the proper orientation. This tape-mat stack is warm pressed to produce a "green" composite.P PThe "green" composite is then heated to an elevated temperature to burn out organic constituents. The remaining interim material is then hot pressed to form a silicon carbide fiber- reinforced celsian (BAS) glass-ceramic matrix composite which may be machined to size.