Sintering and ionic conductivity of CuO-doped tetragonal ZrO 2 prepared by novel colloidal processing

Yoshio Sakka, Tohru Suzuki, Kiyoshi Ozawa, Tetsuo Uchikoshi, Keijiro Hiraga

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Suspensions of Cu 2+ adsorbed tetragonal ZrO 2 (3Y-TZ: 3 mol%Y 2 O 3 -doped tetragonal zirconia) powder were prepared and their green bodies consolidated without powdering process by a pressure filtration method. Green bodies with a narrow pore size distribution were obtained after cold isostatic pressing of the pressure filtrated bodies. Small amounts of CuO addition resulted in lower densification temperature by the aid of a liquid phase. Bulk and grain-boundary conductivities were measured by a complex impedance method. Bulk conductivity was nearly independent of CuO addition but grain-boundary conductivity decreased with CuO addition.

Original languageEnglish
Pages (from-to)1004-1009
Number of pages6
JournalJournal of the Ceramic Society of Japan
Volume109
Issue number1276
DOIs
Publication statusPublished - 2001 Jan 1
Externally publishedYes

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Keywords

  • Colloidal processing
  • CuO-doped
  • Ionic conductivity
  • Sintering
  • Zirconia

ASJC Scopus subject areas

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

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