Phase equilibrium and activities of Fe-S-O melts

Shigeru Ueda; Katsunori Yamaguchi; Yoichi Takeda

doi:10.2320/matertrans.M-MRA2007891

Phase equilibrium and activities of Fe-S-O melts

Shigeru Ueda^*, Katsunori Yamaguchi, Yoichi Takeda

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Phase equilibrium and oxygen partial pressure for the Fe-S-O system from eutectic temperature to 1673 K were investigated by chemical equilibrium techniques and the EMF method. The liquid phase is saturated with Fe, FeO, Fe₃O₄ and FeS. The partial pressure of oxygen increases remarkably with departing from the liquidus saturated with Fe. According to the Gibbs-Duhem equation and Schumann's method, the activities of Fe and the partial pressure of S₂ for the liquid phase are derived.

Original language	English
Pages (from-to)	572-578
Number of pages	7
Journal	Materials Transactions
Volume	49
Issue number	3
DOIs	https://doi.org/10.2320/matertrans.M-MRA2007891
Publication status	Published - 2008 Mar
Externally published	Yes

Keywords

Activity
Iron-sulfur-oxygen system
Phase diagram
Thermodynamics

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.2320/matertrans.M-MRA2007891

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abstract = "Phase equilibrium and oxygen partial pressure for the Fe-S-O system from eutectic temperature to 1673 K were investigated by chemical equilibrium techniques and the EMF method. The liquid phase is saturated with Fe, FeO, Fe3O4 and FeS. The partial pressure of oxygen increases remarkably with departing from the liquidus saturated with Fe. According to the Gibbs-Duhem equation and Schumann's method, the activities of Fe and the partial pressure of S2 for the liquid phase are derived.",

keywords = "Activity, Iron-sulfur-oxygen system, Phase diagram, Thermodynamics",

author = "Shigeru Ueda and Katsunori Yamaguchi and Yoichi Takeda",

year = "2008",

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doi = "10.2320/matertrans.M-MRA2007891",

language = "English",

volume = "49",

pages = "572--578",

journal = "Materials Transactions",

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T1 - Phase equilibrium and activities of Fe-S-O melts

AU - Ueda, Shigeru

AU - Yamaguchi, Katsunori

AU - Takeda, Yoichi

PY - 2008/3

Y1 - 2008/3

N2 - Phase equilibrium and oxygen partial pressure for the Fe-S-O system from eutectic temperature to 1673 K were investigated by chemical equilibrium techniques and the EMF method. The liquid phase is saturated with Fe, FeO, Fe3O4 and FeS. The partial pressure of oxygen increases remarkably with departing from the liquidus saturated with Fe. According to the Gibbs-Duhem equation and Schumann's method, the activities of Fe and the partial pressure of S2 for the liquid phase are derived.

AB - Phase equilibrium and oxygen partial pressure for the Fe-S-O system from eutectic temperature to 1673 K were investigated by chemical equilibrium techniques and the EMF method. The liquid phase is saturated with Fe, FeO, Fe3O4 and FeS. The partial pressure of oxygen increases remarkably with departing from the liquidus saturated with Fe. According to the Gibbs-Duhem equation and Schumann's method, the activities of Fe and the partial pressure of S2 for the liquid phase are derived.

KW - Activity

KW - Iron-sulfur-oxygen system

KW - Phase diagram

KW - Thermodynamics

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U2 - 10.2320/matertrans.M-MRA2007891

DO - 10.2320/matertrans.M-MRA2007891

M3 - Article

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SN - 1345-9678

VL - 49

SP - 572

EP - 578

JO - Materials Transactions

JF - Materials Transactions

IS - 3

ER -

Phase equilibrium and activities of Fe-S-O melts

Abstract

Keywords

ASJC Scopus subject areas

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