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

Fingerprint

Ionic conductivity
ion currents
sintering
Grain boundaries
Sintering
conductivity
grain boundaries
Processing
Densification
Zirconia
Powders
Pore size
Suspensions
pressing
densification
zirconium oxides
liquid phases
Liquids
impedance
porosity

Keywords

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

ASJC Scopus subject areas

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

Cite this

Sintering and ionic conductivity of CuO-doped tetragonal ZrO 2 prepared by novel colloidal processing . / Sakka, Yoshio; Suzuki, Tohru; Ozawa, Kiyoshi; Uchikoshi, Tetsuo; Hiraga, Keijiro.

In: Journal of the Ceramic Society of Japan, Vol. 109, No. 1276, 01.01.2001, p. 1004-1009.

Research output: Contribution to journalArticle

Sakka, Yoshio ; Suzuki, Tohru ; Ozawa, Kiyoshi ; Uchikoshi, Tetsuo ; Hiraga, Keijiro. / Sintering and ionic conductivity of CuO-doped tetragonal ZrO 2 prepared by novel colloidal processing In: Journal of the Ceramic Society of Japan. 2001 ; Vol. 109, No. 1276. pp. 1004-1009.
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