The Synthesis and Composition of Dual-Phase 3Y-TZP/RuO2 Electrode Powders

Tomas P. Raming, Werner E. van Zyl, Riaan Schmuhl, Henk Verweij

Research output: Contribution to journalArticleAcademic


This research was performed to learn more about the electron conducting yttria doped zirconia/ruthenia dual-phase system. The study indicated that for all starting powder precipitates (by either co-precipitation or sequential precipitation) strong separation between the Ru and Zr-species upon heating occurred already at the unexpected low temperature of 100–200°C. The solubility of RuO2 in 3Y-TZP (zirconia stabilised into a tetragonal phase by a 3 mol% Y2O3 addition) after calcination at 600°C was estimated at 3 mol%, independently of the used synthesis technique.
Original languageEnglish
Pages (from-to)149-155
JournalJournal of electroceramics
Issue number3
Publication statusPublished - 2003


  • Composites
  • Homogeneity
  • Solid solubility
  • Zirconia
  • Ruthenia

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