Sintering of self-reinforced ceramics in the ZrO2–Y2O3–CeO2–Al2O3 system

  • A. V. Shevchenko
  • E. V. Dudnik
  • A. K. Ruban
  • V. P. Red’ko
  • L. M. Lopato

The formation of self-reinforced composites in the ZrO2–Y2O3–CeO2–Al2O3 system is investigated. Depending on different sintering conditions, plates of CeAlO3, T-ZrO2, and α-Al2O3 are formed in the matrix based on a solid solution of ZrO2. The self-reinforced composite with fracture toughness 17–20 MPa ⋅ m0.5 is obtained in optimum sintering conditions. In this composite, α-Al2O3 plates as well as individual Ce2O3 ⋅ 11Al2O3 plates are arranged in the matrix based on T-ZrO2. Selfreinforced composites in the ZrO2–Y2O3–CeO2–Al2O3 system have a considerable potential for various engineering ceramic materials with tailored combinations of properties, e.g., for medical applications (surgical tools and bioinert implants).


ZrO2–Y2O3–CeO2–Al2O3 system self-reinforcing sintering α-Al2O3 plate zirconia 


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© Springer Science+Business Media, Inc. 2010

Authors and Affiliations

  • A. V. Shevchenko
    • 1
  • E. V. Dudnik
    • 1
  • A. K. Ruban
    • 1
  • V. P. Red’ko
    • 1
  • L. M. Lopato
    • 1
  1. 1.Frantsevich Institute for Problems of Materials ScienceNational Academy of Sciences of UkraineKievUkraine

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