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 language||English (US)|
|Number of pages||6|
|Journal||Journal of the American Ceramic Society|
|State||Published - Jan 1 1983|
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry