GLASS-CERAMIC COMPOSITE MATERIAL Russian patent published in 2011 - IPC C04B35/80 C03C14/00 

FIELD: chemistry.

SUBSTANCE: invention relates to glass-ceramic composite materials based on nanostructured glass-ceramic matrices which are reinforced with carbon filler, for making annular elements and components for future aerospace equipment with working temperature of up to 1300°C, used in oxidative and other aggressive media and working under heavy mechanical loads. The material can be used in ground-based, power generating, oil and gas pumping and transportation systems an in new fields of general and special machine building. The invention discloses glass-ceramic composite material which contains a glass matrix and carbon fibre filler in the following ratio, wt %: glass matrix 55.5-75.5, carbon fibre filler 24.5-44.5. The glass matrix is crystallised in high-temperature phase of cordierite and has the following chemical composition, wt %: Al₂O₃ 33-38, MgO 11-15, SiO₂ - the rest.

EFFECT: high impact viscosity and fire resistance of the glass-ceramic composite material at working temperatures of up to 1300°C.

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