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Technical Physics Letters

, Volume 44, Issue 2, pp 141–144 | Cite as

The Influence of Corundum Content and Sintering Temperature on the Mechanical Properties of CaO–ZrO2–Al2O3 Ceramic Composites

  • A. A. Dmitrievskii
  • A. I. Tyurin
  • A. O. Zhigachev
  • D. G. Guseva
  • P. N. Ovchinnikov
Article
  • 11 Downloads

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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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • A. A. Dmitrievskii
    • 1
  • A. I. Tyurin
    • 1
  • A. O. Zhigachev
    • 1
  • D. G. Guseva
    • 1
  • P. N. Ovchinnikov
    • 1
  1. 1.Tambov State UniversityTambovRussia

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