METHOD OF OBTAINING PRODUCTS FROM HIGH-STRENGTH CERAMICS Russian patent published in 2017 - IPC C04B35/486 B82Y40/00 

FIELD: chemistry.

SUBSTANCE: for obtaining products from high-strength ceramics, 2-5 wt % of a concentrated solution of lithium hydroxide is added to a mixture of a plasma-chemical ultradisperse powder of tetragonal zirconium oxide (75-82 wt %), alumina (15-20 wt %) and lithium oxide (3-5 wt %), the mixture is dried at a temperature of 120-200°C for 24 hours. The semifinished product is crushed and pressed into preforms in a mould at a pressure of 40-80 MPa. The billets are sintered in air at 1500-1750°C for 15-40 minutes.

EFFECT: increasing the strength of products.

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