Phase equilibrium and activities of Fe-S-O melts

Shigeru Ueda, Katsunori Yamaguchi, Yoichi Takeda

Research output: Contribution to journalArticle

7 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 languageEnglish
Pages (from-to)572-578
Number of pages7
JournalMaterials Transactions
Volume49
Issue number3
DOIs
Publication statusPublished - 2008 Mar
Externally publishedYes

Fingerprint

Phase equilibria
Partial pressure
partial pressure
liquid phases
Oxygen
Gibbs equations
liquidus
Liquids
oxygen
eutectics
Eutectics
chemical equilibrium
Electric potential
Temperature
temperature

Keywords

  • Activity
  • Iron-sulfur-oxygen system
  • Phase diagram
  • Thermodynamics

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

Phase equilibrium and activities of Fe-S-O melts. / Ueda, Shigeru; Yamaguchi, Katsunori; Takeda, Yoichi.

In: Materials Transactions, Vol. 49, No. 3, 03.2008, p. 572-578.

Research output: Contribution to journalArticle

Ueda, Shigeru ; Yamaguchi, Katsunori ; Takeda, Yoichi. / Phase equilibrium and activities of Fe-S-O melts. In: Materials Transactions. 2008 ; Vol. 49, No. 3. pp. 572-578.
@article{85e4beaadc1e464d864ba359e8b08d2e,
title = "Phase equilibrium and activities of Fe-S-O melts",
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",
month = "3",
doi = "10.2320/matertrans.M-MRA2007891",
language = "English",
volume = "49",
pages = "572--578",
journal = "Materials Transactions",
issn = "1345-9678",
publisher = "Japan Institute of Metals (JIM)",
number = "3",

}

TY - JOUR

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

UR - http://www.scopus.com/inward/record.url?scp=42349088504&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=42349088504&partnerID=8YFLogxK

U2 - 10.2320/matertrans.M-MRA2007891

DO - 10.2320/matertrans.M-MRA2007891

M3 - Article

VL - 49

SP - 572

EP - 578

JO - Materials Transactions

JF - Materials Transactions

SN - 1345-9678

IS - 3

ER -