Abstract
We have studied the mechanical properties (Vickers microhardness HV and fracture toughness KC) of nanostructured CaO–ZrO2–Al2O3 ceramic composites as dependent on the content of corundum (0 ≤ \(C_{Al_{2}O_{3}}\) ≤ 25%) and the temperature of sintering (1250°C ≤ T1 ≤ 1500°C). Optimum value of the corundum content (\(C_{Al_{2}O_{3}}\) = 5%) and optimum regime (T1 = 1300°C, 5 min; T2 = 1200°C, 4 h) of two-stage sintering are established, which favor attaining the best mechanical characteristics of ceramic composites (HV = 12.25 GPa, KC = 8.47 MPa m1/2).
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Original Russian Text © A.A. Dmitrievskii, A.I. Tyurin, A.O. Zhigachev, D.G. Guseva, P.N. Ovchinnikov, 2018, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2018, Vol. 44, No. 4, pp. 25–33.
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Dmitrievskii, A.A., Tyurin, A.I., Zhigachev, A.O. et al. The Influence of Corundum Content and Sintering Temperature on the Mechanical Properties of CaO–ZrO2–Al2O3 Ceramic Composites. Tech. Phys. Lett. 44, 141–144 (2018). https://doi.org/10.1134/S1063785018020219
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DOI: https://doi.org/10.1134/S1063785018020219