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Strength of Materials

, Volume 23, Issue 1, pp 86–91 | Cite as

Mechanical behavior of zirconium dioxide crystals partially stabilized with yttrium oxide

  • G. A. Gogotsi
  • A. V. Drozdov
  • V. G. Peichev
Scientific-Technical Section

Abstract

The results are given of a composite investigation of the mechanical behavior of single crystals of zirconium dioxide partially stabilized with yttrium oxide and ytterbium oxide at temperatures up to 1400°C. It is shown that the elastic modulus of these materials lies in the 150–350 GPa range and their tensile strengths may reach 1,688 MPa. These materials have a nonincreasing relationship of the stress intensity factor to crack length (flat R-curves). The stress intensity factors determined on specimens with a sharp crack are significantly lower than on specimens with a notch. The picture of fracture of single crystals in penetration of an indentor, etc. differs significantly in relation to the stabilizing addition.

Keywords

Oxide Dioxide Zirconium Tensile Strength Elastic Modulus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1991

Authors and Affiliations

  • G. A. Gogotsi
    • 1
    • 2
  • A. V. Drozdov
    • 1
    • 2
  • V. G. Peichev
    • 1
    • 2
  1. 1.Institute of Strength ProblemsAcademy of Sciences of the Ukrainian SSRKiev
  2. 2.The All-Union Scientific-Research Institute for Power in Nonferrous MetallurgySverdlovsk

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