TY JOUR TI EFFECT OF MECHANICAL PROCESSING ON THE PHASE STATE AND MICROHARDNESS OF COMPOSITE CERAMICS BASED ON PARTIALLY STABILIZED ZIRCONIUM DIOXIDE WITH THE ADDITION OF Al2O3 KW zirconium dioxide KW composite ceramic KW plane grinding KW grinding depth KW phase composition KW microhardness JO Technique and technology of silicates AU Timokhin, I.Y. PY 2026 IS PB Individual Entrepreneur Svetlana Vasilievna Samchenko