Electronic Conduction and Thermopower of Magnetite and Iron‐Aluminate Spinels

T. O. MASON*, H. K. BOWEN

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

Electrical‐conductivity and thermoelectric‐power measurements of magnetite and iron‐aluminate spinels at high temperatures confirm a small‐polaron model of electronic conduction. Electrical properties corroborate the previously established cation distribution and defect model. Iron cations become randomly distributed between sublattices at the highest temperature. An n‐to‐p transition therefore occurs at the 50%Fe3O4‐50%FeAl2O4 composition. Cation distribution and defect equilibria appear to be independent of composition.

Original languageEnglish (US)
Pages (from-to)237-242
Number of pages6
JournalJournal of the American Ceramic Society
Volume64
Issue number4
DOIs
StatePublished - Apr 1981

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Electronic Conduction and Thermopower of Magnetite and Iron‐Aluminate Spinels'. Together they form a unique fingerprint.

Cite this