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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

Abstract

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.

Keywords

Dioxide Zirconium Fracture Toughness Mechanical Behavior Acoustic Emission 
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
    • 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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