Journal of Materials Science

, Volume 29, Issue 3, pp 835–843 | Cite as

Effects of grain size and specimen geometry on the transformation and R-curve behaviour of 9Ce-TZP ceramics

  • T. Liu
  • Y. -W. Mai
  • M. V. Swain
  • G. Grathwohl


Transformation and R-curve behaviour have been investigated in 9 mol% Ce-TZP ceramics with different grain sizes. Both single-edge notched beam and short double-cantilever beam specimens were tested to measure the crack-resistance curves. The size and shape of the transformation zone not only depend on grain size, but are also strongly influenced by the specimen geometry. This different transformation behaviour has led to different crack-resistance curves. These experimental results are discussed in terms of the thermodynamics of transformation, the effect of autocatalytic transformation, and fracture mechanics.


Polymer Grain Size Fracture Mechanic Specimen Geometry Transformation Behaviour 
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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • T. Liu
    • 1
  • Y. -W. Mai
    • 1
  • M. V. Swain
    • 1
  • G. Grathwohl
    • 2
  1. 1.Centre for Advanced Materials Technology, Department of Mechanical EngineeringUniversity of SydneyNew South WalesAustralia
  2. 2.Institut für Keramik im MaschinenbauUniversity KarlsruheKarlsruhe 1Germany

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