Ceramic Materials of Compositions (mol. %) 97ZrO2–3Sm2O3 and 94ZrO2–6Sm2O3 based on nanosized powders synthesized by hydrolysis sol-gel method are obtained. It is shown that in ceramic materials a two-phase composition is formed, including tetragonal and cubic form of solid solutions based on ZrO2. It has been found that the amount of Sm2O3 affects the ratio of the phases formed, and accordingly affects the grain composition of the microstructure and the mechanical characteristics of the ceramic materials. It was determined that an increase in the content of the solid solution phase of the tetragonal shape of the ZrO2 from 46 to 85 vol. % determines an increase in the strength of the ceramic material from 600 to 850 MPa and crack resistance according to the parameter K1c from 8.0 to 10.5 MPa · m?.
Lyudmila I. Podzorova – Сandidate of Chemistry, Associate Professor, leading researcher, Baikov Institute of Metallurgy and Materials Science of RAS, Moscow, Russia
Vladimir P. Sirotinkin – Сandidate of Chemistry, senior researcher, Baikov Institute of Metallurgy and Materials Science of RAS, Moscow, Russia
Alexander S. Baikin – Canditate of Technical Sciences, senior researcher, Baikov Institute of Metallurgy and Materials Science of RAS, Moscow, Russia
Alla A. Il'icheva – senior researcher, Baikov Institute of Metallurgy and Materials Science of RAS, Moscow, Russia
Nina A. Michaylina – researcher, Baikov Institute of Metallurgy and Materials Science of RAS, Moscow, Russia
Egor C. Morokov – Canditate of Physical and Mathematical Sciences, senior researcher, Emanuel Institute of Biochemical Physics of RAS, Moscow, Russia
Olga I. Pen'kova – researcher, Baikov Institute of Metallurgy and Materials Science of RAS, Moscow, Russia
Tatyana R. Chueva – Canditate of Technical Sciences, senior researcher, Baikov Institute of Metallurgy and Materials Science of RAS, Moscow, Russia
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