Impedance Spectroscopy Study of Sintering in Bi‐Doped ZnO

Kelly S. Kirkpatrick*, Thomas O Mason, Uthamalingam Balachandran, Roger B. Poeppel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Solid‐ and liquid‐state sintering kinetics in the (1 – x)ZnO‐xBi2O3 system with 0 ≤x≤ 0.05 over the range 600 ≤T (°C) ≤ 1100 were investigated by impedance spectroscopy. Compositions with x < 0.002 retarded sintering, whereas compositions with x≥ 0.004 accelerated sintering above the eutectic temperature of 740°C. The results could be interpreted in terms of limited solid solubility of Bi2O3 in ZnO (x≃ 0.004 ± 0.002), solid‐state sintering in the subsolidus, and liquid‐state sintering above the solidus. A phase diagram for the ZnO‐rich end of the system is proposed, based on these results.

Original languageEnglish (US)
Pages (from-to)1493-1498
Number of pages6
JournalJournal of the American Ceramic Society
Volume77
Issue number6
DOIs
StatePublished - Jan 1 1994

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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