Strength of Materials

, Volume 23, Issue 1, pp 45–51 | Cite as

Strength, fracture toughness, and acoustic emission of ceramics based on partially stabilized zirconium dioxide

  • G. A. Gogotsi
  • A. V. Drozdov
  • M. Swain
Scientific-Technical Section


A study is made of the mechanical behavior of ceramics based on ZrO2: a ceramic partially stabilized with MgO and a tetragonal polycrystalline ceramic with an addition of Y2O3. It is shown that the Y2O3-stabilized ceramic is linearly elastic, is characterized by a plane R-curve, and exhibits the fracture barrier effect. The ceramic with MgO is inelastic, has an increasing R-curve, and does not exhibit the fracture barrier effect. Data is obtained on acoustic emission in a study of the ceramics, the sources of the emissions being both microscopic and macroscopic defects.


Dioxide Zirconium Fracture Toughness Mechanical Behavior Acoustic Emission 
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Copyright information

© Plenum Publishing Corporation 1991

Authors and Affiliations

  • G. A. Gogotsi
    • 1
    • 2
    • 3
  • A. V. Drozdov
    • 1
    • 2
    • 3
  • M. Swain
    • 1
    • 2
    • 3
  1. 1.Institute of Strength ProblemsUSSR
  2. 2.Academy of Sciences of the Ukrainian SSRKiev
  3. 3.Federal Organization for Scientific and Industrial Studies (CSIRO)Melbourne

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