Crack‐Tip Transformation Zones in Toughened Zirconia

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • David B. Marshall
  • Michael C. Shaw
  • Reinhold H. Dauskardt
  • Michael J. Readey
  • Arthur H. Heuer

Detail(s)

Original languageEnglish
Pages (from-to)2659-2666
Journal / PublicationJournal of the American Ceramic Society
Volume73
Issue number9
Publication statusPublished - Sep 1990
Externally publishedYes

Abstract

Transformation zones surrounding cracks in several toughened magnesia‐partially‐stabilized zirconia ceramics are characterized by optical interference measurements of surface uplift and by Raman microprobe spectroscopy. The measurements demonstrate that the volume fraction of transformation is nonuniform within the zone and that the extent of the frontal zone is approximately the same as that of the wake. Results are used to evaluate the crack‐tip shielding stress intensity factor and to compare with the measured fracture toughness.

Research Area(s)

  • crack tip, partially stabilized zirconia, Raman spectroscopy, toughness, transformations

Citation Format(s)

Crack‐Tip Transformation Zones in Toughened Zirconia. / Marshall, David B.; Shaw, Michael C.; Dauskardt, Reinhold H.; Ritchie, Robert O.; Readey, Michael J.; Heuer, Arthur H.

In: Journal of the American Ceramic Society, Vol. 73, No. 9, 09.1990, p. 2659-2666.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review