Phase transformation and residual stresses in retrieved zirconia ball implant

I. C. Clarke, G. Pezzotti, S. Sakakura, N. Sugano

Research output: Contribution to journalConference articlepeer-review

Abstract

Surface deterioration of a retrieved zirconia ceramic femoral head after total hip arthroplasty has been studied on a microscopic level by means of Raman spectroscopic techniques. Two kinds of microscopic quantitative information could be achieved: (i) tetragonal-to-monoclinic phase transformation maps were collected with a micrometer spatial resolution on selected areas of the femoral head; and, (ii) the associated residual stresses stored within the tetragonal phase were also mapped. A clear correlation was found between the degree of phase transformation and the residual stress magnitude, which was in turn related to impingement of the titanium metal backing of the cup on the ball.

Original languageEnglish
Pages (from-to)777-780
Number of pages4
JournalKey Engineering Materials
Volume240-242
StatePublished - 2003
EventProceedings of the 15th International Symposium on Ceramics in Medicine; The Annual Meeting of the International Society for Ceramics in Medicine - Sydney, NSW, Australia
Duration: Dec 4 2002Dec 8 2002

ASJC Scopus Subject Areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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