Thermoelectric Determination of Cation Distributions in

A. TRESTMAN‐MATTS*, S. E. DORRIS, S. KUMARAKRISHNAN, Thomas O Mason

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

Thermoelectric coefficient measurements in the system Fe3O4‐Fe2TiO4 were used to determine the cation distributions from 600° to 1300°C. The cation distributions obeyed the relation ‐RT In K=‐9.61+2(‐0.0154T)b+0.0256T (kJ/mol) where KFecd is the iron distribution constant and b is the tetrahedral Fe3+ concentration. Low‐temperature extrapolations agreed with experimental magnetometry and lattice parameter results. With the incorporation of a subregular size‐mismatch term, agreement with high‐temperature thermodynamic data was achieved. A solvus at intermediate temperatures was correctly predicted by the model.

Original languageEnglish (US)
Pages (from-to)829-834
Number of pages6
JournalJournal of the American Ceramic Society
Volume66
Issue number12
DOIs
StatePublished - Jan 1 1983

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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