HIGH-STRENGTH CERAMICS Russian patent published in 2017 - IPC C04B35/486 B82Y40/00 

FIELD: chemistry.

SUBSTANCE: invention relates to the field of ceramics based on zirconium oxide partially stabilized with yttrium oxide and can be used for the production of grinding balls, lining plates, sintering substrates for radio engineering purposes, and implants for prosthetics of human joints. The nanodispersed powder, consisting of 70-80 wt % of high-temperature tetragonal zirconium oxide, 15-25 wt % of aluminium oxide and 4-7 wt % of yttrium oxide, is formed by hydrodynamic pressing at a pressure of 0.4-0.6 GPa for 10^-2 s and fired in an oven at a temperature of 900-1100°C in the hydrogen medium.

EFFECT: resulting ceramics due to its high strength characteristics can be used for products with increased operational requirements.

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