METHOD FOR PRODUCING A CHARGE FOR MANUFACTURING COMPOSITE BORON CARBIDE - ZIRCONIUM DIBORIDE CERAMICS Russian patent published in 2022 - IPC C04B35/563 C04B35/58 C04B35/626 

FIELD: ceramics.

SUBSTANCE: proposed invention relates to manufacturing composite boron carbide - zirconium diboride ceramics and can be used for manufacturing covers of high-temperature thermocouples, evaporators and boats for vacuum metallisation, pipes for pumping molten metals, nozzles of sandblasting equipment, lightweight ceramic armour, anti-friction products. Method for producing a charge for manufacturing composite boron carbide - zirconium diboride ceramics, consisting in obtaining a mixture of boron carbide and zirconium diboride powders, characterised by preparing the mixture with carbide-boron reduction of zirconium dioxide with excess boron carbide with a particle size after heat treatment of 4.9 mcm, at a reaction temperature of 1,600 to 1,700°C for 20 to 25 minutes, wherein crushed nanofibrous carbon is used as a highly dispersed carbon material.

EFFECT: proposed method is aimed at reducing the size of boron carbide particles in the charge.

1 cl, 1 ex