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The influence of stress distribution on the deformation and fracture behaviour of ceramic materials under compression creep conditions

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Abstract

The stress distribution developed in test pieces during compression creep has been determine using the finite element method. The analyses are shown to account precisely for the inhomogeneous distribution of grain-boundary cracks developed during creep of polycrystalline magnesia and indicate that the accommodation of grain-boundary sliding by cavity formation is the rate-controlling process during high temperature creep of reaction-bonded silicon nitride.

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Authors and Affiliations

  1. Department of Metallurgy and Materials Technology, University College of Swansea, Singleton Park, Swansea, UK

    J. M. Birch & B. Wilshire

  2. Department of Civil Engineering, University College of Swansea, Singleton Park, Swansea, UK

    D. J. R. Owen & D. Shantaram

Authors
  1. J. M. Birch
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  2. B. Wilshire
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  3. D. J. R. Owen
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  4. D. Shantaram
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Birch, J.M., Wilshire, B., Owen, D.J.R. et al. The influence of stress distribution on the deformation and fracture behaviour of ceramic materials under compression creep conditions. J Mater Sci 11, 1817–1825 (1976). https://doi.org/10.1007/BF00708259

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  • DOI: https://doi.org/10.1007/BF00708259

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