FIELD: composite ceramic materials.
SUBSTANCE: invention can be used in the manufacture of covers for high-temperature thermocouples, evaporators and boats for vacuum metallization, pipes for pumping molten metals, nozzles for sandblasting machines, and lightweight ceramic armour. To produce composite ceramics boron carbide - zirconium diboride, the initial components (boron carbide, zirconium dioxide and nanofibrous carbon) are mixed in a mass ratio of 7.42: 6.85: 1.00 in a planetary ball mill for 5 minutes with an acceleration of 20 g at a ratio of charge mass to ball mass of 1:30. The mixture is subjected to hot pressing in an argon environment at a temperature of 1900-1950°C and pressure of 20-25 MPa.
EFFECT: invention makes it possible to simplify the production of B4C-ZrB2 ceramics and increase the microhardness and crack resistance of the ceramics.
1 cl, 4 ex
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