Thermopower Measurement of Cation Distribution in Magnetite

C. C. WU*, Thomas O Mason

*Corresponding author for this work

Research output: Contribution to journalArticle

118 Citations (Scopus)

Abstract

The cation distribution in stoichiometric Fe3O4 was determined from thermopower measurements at 600° to 1500°C. The distribution varies from inverse at low temperature to random at ∼1450°C. The equilibrium constant for cation distribution can be expressed as In KCD=2770/T−1.61, indicating temperature‐independent enthalpy and nonconfigurational entropy terms of −23.0 and −13.4 J/mol‐K, respectively.

Original languageEnglish (US)
Pages (from-to)520-522
Number of pages3
JournalJournal of the American Ceramic Society
Volume64
Issue number9
DOIs
StatePublished - Jan 1 1981

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Ferrosoferric Oxide
Thermoelectric power
Magnetite
Cations
Positive ions
Equilibrium constants
Enthalpy
Entropy
Temperature

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

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title = "Thermopower Measurement of Cation Distribution in Magnetite",
abstract = "The cation distribution in stoichiometric Fe3O4 was determined from thermopower measurements at 600° to 1500°C. The distribution varies from inverse at low temperature to random at ∼1450°C. The equilibrium constant for cation distribution can be expressed as In KCD=2770/T−1.61, indicating temperature‐independent enthalpy and nonconfigurational entropy terms of −23.0 and −13.4 J/mol‐K, respectively.",
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Thermopower Measurement of Cation Distribution in Magnetite. / WU, C. C.; Mason, Thomas O.

In: Journal of the American Ceramic Society, Vol. 64, No. 9, 01.01.1981, p. 520-522.

Research output: Contribution to journalArticle

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AU - Mason, Thomas O

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AB - The cation distribution in stoichiometric Fe3O4 was determined from thermopower measurements at 600° to 1500°C. The distribution varies from inverse at low temperature to random at ∼1450°C. The equilibrium constant for cation distribution can be expressed as In KCD=2770/T−1.61, indicating temperature‐independent enthalpy and nonconfigurational entropy terms of −23.0 and −13.4 J/mol‐K, respectively.

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