TOUGH CERAMIC MATERIAL Russian patent published in 1998 - IPC

FIELD: ceramics. SUBSTANCE: invention may be utilized in refractory industry, metallurgy, engine-making, and power engineering, in particular, for parts operated at high temperatures and loadings in air or in contact with hostile environment, and also under shock loads. Material, for example, can be used to manufacture various-type and destination nozzles, turbine wheels and blades, flare fittings, fire tubes, etc. Also utilized may be material as armoring, e. g. for various armored clothes, to protect cars, special vehicles, armored technics, helicopters, aircrafts, and so on. Essence of invention consists in increasing crack resistance (fracture toughness), strength, and heat resistance of material, while simultaneously preserving hardness and refractory property. This is achieved by that a known ceramic material containing boron carbide (60-78%), silicon carbide (7-22%), titanium carbide (3-11%), and titanium diboride (3-15%) is supplemented by 0.3-15% of carbon fiber. EFFECT: improved consumer quality. 1 tbl