R-curve determination of 3Y-PSZ by the indentation strength-in-bending method

Jing Feng Li, Akira Kawasaki, Ryuzo Watanabe

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


R-curve in 3 mol% Y2O3-partially stabilized ZrO2 (3Y-PSZ) ceramics was measured using the indentation-strength-in-bending method proposed by Krause, and the influence of subcritical crack growth on the R-curve determination was investigated. It was found that Krause's method can be used to determine conveniently the R-curve in 3Y-PSZ ceramic. In addition, the present study provided useful information about subcritical or slow crack growth from indented cracks, which was found to be remarkable during bend testing in air even at relatively high cross-head speeds when no care was taken to keep the indentation crack out from moisture.

Original languageEnglish
Pages (from-to)88-90
Number of pages3
JournalJournal of the Ceramic Society of Japan
Issue number1
Publication statusPublished - 1997


  • Crack growth resistance
  • Environmental effect
  • Partially stabilized zirconia
  • R-curve
  • Subcritical crack growth
  • Vickers indentation

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry


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