| 摘要 |
FIELD: construction.SUBSTANCE: method to manufacture products from ceramo-matrix composite material includes manufacturing of a porous stock from a carbon-containing material reinforced with heat resisyant fibres and a disperse carbon filler, and its subsequent silicification. For this purpose from heat resistant fibres they form a frame of volume structure, its pores are filled with a disperse carbon filler with simultaneous formation of a ceramic and/or carbon matrix by impregnation of the frame by aqueous sugar solution oversaturated at room temperature (hot sugar syrup). After crystallisation of sugar particles, the stock is dried at room temperature to remove water from pores of the stock and impregnated with solutions of ceramo- and/or coke-forming polymers, the dissolvent of which is not a sugar dissolvent, hardened at 160-300°C and thermally processed at 850-1300°C. The stock is silicified by liquid phase or steam phase method at the end temperature of silicon carbidisation 1800°C.EFFECT: increased reliability of products operation under conditions of thermal loading in oxidising medium.5 cl, 1 tbl, 11 ex |
