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Fracture Mechanics of Ceramics pp 151–162Cite as

Strength-Toughness Relationships for Transformation Toughened Ceramics

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Abstract

Recent studies have shown that the maximum strength of a number of PSZ alloys appears to be limited by the critical stress to initiate the t to m — ZrO2 transformation. An alternative explanation of these observations is that the peak strength is limited by the substantial R-curve of these tough ceramics. This paper presents evidence to support both approaches. It is concluded that whilst stress-induced transformation provides a simplistic description analogous to the brittle to ductile transition in metals, the inherent R-curve behaviour of cracks is the mechanistically more correct description for the observed maxima in strength-toughness measurements for various PSZ alloys.

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References

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Author information

Authors and Affiliations

  1. Division of Materials Science, CSIRO, Melbourne, Victoria, Australia, 3001

    M. V. Swain

Authors
  1. M. V. Swain
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Editor information

Editors and Affiliations

  1. College of Engineering, University of Washington, Seattle, Washington, USA

    R. C. Bradt

  2. Department of Materials and Mineral Engineering, University of California, Berkeley, California, USA

    A. G. Evans

  3. Department of Materials Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA

    D. P. H. Hasselman

  4. Rockwell International, Science Center, Thousand Oaks, California, USA

    F. F. Lange

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© 1986 Plenum Press, New York

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Swain, M.V. (1986). Strength-Toughness Relationships for Transformation Toughened Ceramics. In: Bradt, R.C., Evans, A.G., Hasselman, D.P.H., Lange, F.F. (eds) Fracture Mechanics of Ceramics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7026-4_12

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  • DOI: https://doi.org/10.1007/978-1-4615-7026-4_12

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4615-7028-8

  • Online ISBN: 978-1-4615-7026-4

  • eBook Packages: Springer Book Archive

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