Effects of Oxide Doping on Microstructure and Mechanical Properties of Ce-TZP

Akihiro Takemura, Toru Sekino, Atsushi Nakahira, Kouichi Niihara, Takashi Koyama

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The purpose of this study is to examine the effects of some oxide additives on the grain growth and transformation behaviors of ceria doped tetragonal zirconia (Ce-TZP) to improve its mechanical properties. Monolithic Ce-TZP and some alkaline earth oxide (CaO, SrO and BaO) doped Ce-TZP were fabricated by the pressureless sintering technique at 1500 to 1700°C in air atmosphere. The grain growth of ZrO2 matrix was suppressed by doping alkaline earth oxide. BaO doping induced the transformation of Ce-TZP, whereas CaO doping was effective in stabilizing the tetragonal phase of CeTZP. CaO-doped Ce-TZP exhibited the high strength over 1000MPa. BaO doped Ce-TZP increased the fracture toughness of monolithic Ce-TZP. There was no effect of SrO-doping on transformation behavior and mechanical properties for Ce-TZP. The relationship between the microstructure and mechanical properties of oxide doped Ce-TZP were discussed.

Original languageEnglish
Pages (from-to)606-612
Number of pages7
JournalJournal of the Society of Materials Science, Japan
Volume43
Issue number489
DOIs
Publication statusPublished - 1994

Keywords

  • Ce-TZP
  • Mechanical property
  • Stabilizer
  • Transformation
  • rO

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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