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Journal of Materials Science

, Volume 13, Issue 7, pp 1464–1470 | Cite as

Effect of stress-induced phase transformation on the properties of polycrystalline zirconia containing metastable tetragonal phase

  • T. K. Gupta
  • F. F. Lange
  • J. H. Bechtold
Papers

Abstract

Polycrystalline zirconia containing a high content of metastable tetragonal phase shows high strength (∼ 700 MPa), high fracture toughness (Kc = 6 to 9 MN m−3/2) and small grain size (<0.3jμm). The strength and grain size remain nearly constant over a wide range of tetragonal phase content (100 to 30%). At a low concentration of tetragonal phase <30%, there is a rapid decrease in strength accompanied by a rapid increase in grain size. These results are explained by means of a stress-induced phase transformation in the metastable tetragonal phase.

Keywords

Polymer Grain Size Zirconia Phase Transformation Fracture Toughness 
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

© Chapman and Hall Ltd. 1978

Authors and Affiliations

  • T. K. Gupta
    • 1
  • F. F. Lange
    • 1
  • J. H. Bechtold
    • 1
  1. 1.Westinghouse Research and Development CenterPittsburghUSA

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