CARBON-SILICON CARBIDE COMPOSITE MATERIAL BASED ON MULTIDIRECTIONAL REINFORCED BAR FRAMEWORK Russian patent published in 2017 - IPC C04B35/80 C04B35/577 

FIELD: chemistry.

SUBSTANCE: carbon-silicon carbide composite material has a volume-reinforced structure based on multidirectional bar frameworks (n = 3, 4 …, where n is the number of reinforcement directions) of carbon fiber and a complex carbon-silicon carbide matrix obtained from hydrocarbons during their carbonization at atmospheric pressure or isostatically under pressure, saturation of the preforms with pyrolytic carbon, high-temperature treatment, pre-silicide and subsequent re-siliconization after machining. The siliconization (preliminary and repeated) of the carbon-carbon preform can be carried out by any known method, including a mixture of silicon and boron or a mixture of silicon with other refractory components, or silicon-based compounds, with a silicate preform density ranging of 1.60 to 1.95 g/cm³ depending on the end use of the material.

EFFECT: material has high thermo-erosive and oxidative stability, and sufficient physical and mechanical characteristics that increase with increasing temperature.

2 cl, 8 ex, 2 tbl, 2 dwg