High ionic conductivity and high fracture strength of cubic zirconia, (Y0.16 - xScx)Zr0.84O1.92,/alumina composites

S. Terauchi, Hirotsugu Takizawa, T. Endo, S. Uchida, T. Terui, M. Shimada

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Yttria- and scandia-doped cubic zirconia, (Y0.16 - xScx)Zr0.84O1.92 (0 ≤x ≤ 0.16),/alumina composites containing 0-20 vol% Al2O3 particles were sintered at 1600 °C for 5 h in air, followed by hot isostatic pressing at 150 MPa and 1500 °C for 1 h in Ar gas atmosphere. All sintered samples were densified above 99.5% of theoretical density. Both fracture strength and ionic conductivity greatly increased with increasing scandia content. For alumina particles dispersed cubic zirconia composites, fracture strength significantly increased, but ionic conductivity slightly decreased with increasing alumina content.

Original languageEnglish
Pages (from-to)273-275
Number of pages3
JournalMaterials Letters
Volume23
Issue number4-6
DOIs
Publication statusPublished - 1995 Jan 1

ASJC Scopus subject areas

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

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