The subsolidus equilibrium oxygen fugacities for the boundaries of the Fe₃O₄Fe₂TiO₄ stability field above 1000°C have been calculated from available data. A Frenkel point defect equilibrium model is described, which uniquely determines the single phase intrinsic oxygen fugacity, as a function of temperature, Ti content, and metal-oxygen stoichiometry.

Abstract

Gleichgewichts-Sauerstoff-Fugazität in Titanferriten

Die Subsolidus-Gleichgewichts-Sauerstoff-Fugazitäten für die Grenzen des Fe₃O₄Fe₂TiO₄-Stabilitätsgebietes über 1000°C sind aus verfügbaren Daten berechnet worden. Ein Frenkel-Fehlstellen-Gleichgewichts-Modell wird beschrieben, das einheitlich die Sauerstoff-Fugazität der Reinen Einzelphasen als Funktion von Temperatur, Titangehalt und Metall-Sauerstoff-Stöchiometrie bestimmt.

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Volume540, Issue9-10

September/Oktober 1986

Pages 80-90

Equilibrium Oxygen Fugacity in Titanium Ferrites^†

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Equilibrium Oxygen Fugacity in Titanium Ferrites†

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Equilibrium Oxygen Fugacity in Titanium Ferrites^†