Preparation of fine alumina dispersed ytterbia-stabilized cubic zirconia based composites

M. Wada, T. Sekino, Y. H. Choa, B. S. Kim, T. Kusunose, T. Nakayama, K. Niihara

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

To improve low mechanical properties of cubic zirconia, Al2O3 has been dispersed to Yb2O3 stabilized ZrO2 (YbSZ). YbSZ/Al2O3 nanocomposite powders were prepared by solution chemistry route, and sintered bodies were fabricated by pressureless sintering. Obtained composites have finer matrix grains with increasing Al2O3 addition. The fracture strength of composites was remarkably increased due to the refinement of YbSZ matrix grain size. Ionic conductivity of composite at high temperatures was almost the same value of the monolithic YBSZ ceramic.

Original languageEnglish
Pages (from-to)85-89
Number of pages5
JournalMaterials Science Forum
Volume439
DOIs
Publication statusPublished - 2003
EventEco - Materials Processing and Design - Gyungpodae, Korea, Republic of
Duration: 2003 Feb 42003 Feb 6

Keywords

  • Alumina
  • Cubic zirconia
  • Ionic conductivity
  • Mechanical properties
  • Nanocomposite

ASJC Scopus subject areas

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

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