Ionic conduction in yttrium aluminum garnet

S. R. Rotman, H. L. Tuller

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The ionic conductivity of YAG single crystals doped with a variety of impurities including Ce, Ni, Ni+Zr, Fe and Ca was studied and generally found to be PO2-independent, fixed by acceptor impurities. In the case of Ni dopants, a PO2-dependent ionic conductivity was also observed and associated with the valence change of Ni3+ to Ni2+. The activation energy for oxygen ion conduction ranged from 2.2 to 4.0 eV. Results are compared with diffusion data.

Original languageEnglish
Pages (from-to)893-895
Number of pages3
JournalSolid State Ionics
Volume40-41
Issue numberPART 2
DOIs
StatePublished - 1 Jan 1990

ASJC Scopus subject areas

  • Chemistry (all)
  • Materials Science (all)
  • Condensed Matter Physics

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