The production of composites based on nanopowders synthesized by the sol-gel method in the system aluminum oxide and tetragonal zirconium dioxide stabilized by cerium cations (Al2O3–[Ce–TZP]) is described. It is shown that modification of the compositions by calcium oxide promotes the formation of composites of a dispersion-hardening phase in the form of long-prismatic grains in the sintering process. The presence of this phase affects the increase of strength and resistance to brittle fracture of composites with a ZrO2 matrix and with an Al2O3 matrix. The strength in static bending of the composites reaches 1000 MPa and the cracking resistance K 1c increases to 11.0 MPa·m1/2.
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Translated from Steklo i Keramika, No. 6, pp. 16 – 20, June, 2017.
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Podzorova, L.I., Il’icheva, A.A., Pen’kova, O.I. et al. Dispersion Hardening of Composites in the System Aluminum Oxide and Cerium Cation Stabilized Tetragonal Zirconium Dioxide. Glass Ceram 74, 204–208 (2017). https://doi.org/10.1007/s10717-017-9962-8
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DOI: https://doi.org/10.1007/s10717-017-9962-8