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Influence of long-term ageing upon the mechanical properties of partially stabilized zirconia (Mg-PSZ) for heat-engine applications

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Abstract

The influence of long-term ageing at 1000° C upon the mechanical strength of a commercial Mg-PSZ ceramic is investigated. The Weibull solution was used to measure the material reliability. The effects of sub-eutectoid ageing were related to the stability of the tetragonal phase. Grain boundaries are shown to often act as fracture origins, and to constitute a fracture-controlling population that is not significantly affected by high-temperature ageing.

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Author notes

  1. J. Lamon

    Present address: Battelle-Geneva, 7 Route de Drize, 1227, Carouge, Geneva, Switzerland

Authors and Affiliations

  1. Ecole Nationale Supérieure des Mines de Paris, Centre des Matériaux, BP 87, 91003, Evry Cedex, France

    J. Lamon, A. Thorel & D. Broussaud

Authors
  1. J. Lamon
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  2. A. Thorel
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  3. D. Broussaud
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Lamon, J., Thorel, A. & Broussaud, D. Influence of long-term ageing upon the mechanical properties of partially stabilized zirconia (Mg-PSZ) for heat-engine applications. J Mater Sci 21, 2277–2282 (1986). https://doi.org/10.1007/BF01114268

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  • DOI: https://doi.org/10.1007/BF01114268

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