High temperature glass-ceramic matrix with embedded reinforcement fibers

A composite material comprising:

• a glass-ceramic matrix composition stable at operating temperatures greater than 1400° C., the glass-ceramic matrix composition being partially crystallized;
• a fiber reinforcement, derived by laser chemical vapor deposition, that remains stable at operating temperatures greater than 1400° C. within the glass-ceramic matrix composition;
• and
• an interphase coating formed on the fiber reinforcement to enhance the composite material rigidity, the interphase coating comprising, at least in part, a slip coating to allow for slippage of the fiber reinforcement relative to the partially crystallized glass-ceramic matrix composition, and the interphase coating comprising, at least in part, a metal or metal oxide layer to protect the fiber reinforcement and the slip coating.

A method of forming a composite material comprising:

• obtaining a plurality of fiber reinforcements, a fiber reinforcement of the plurality of fiber reinforcements remaining stable at an operating temperature greater than 1400° C., and an interphase coating formed thereon, the interphase coating comprising, at least in part, a slip coating, and the interphase coating comprising, at least in part, a metal or metal oxide layer to protect the fiber reinforcement and the slip coating;
• assembling the plurality of fiber reinforcements into a press;
• surrounding the plurality of fiber reinforcements with glass particles;
• applying heat and pressure to the plurality of fiber reinforcements surrounded by glass particles in the press under one of a vacuum or an inert atmosphere, melting the glass particles and forming a glass-ceramic matrix composition surrounding the plurality of fiber reinforcements, the glass-ceramic matrix composition being partially crystallized;
• and
• wherein the slip coating formed on a fiber reinforcement of the plurality of fiber reinforcements allows for slippage of the fiber reinforcement relative to the partially crystallized glass-ceramic matrix composition to enhance composite material durability.