Activity coefficient of SiO2 in SiO2-Al 2O3-CaO Slags with Low SiO2-content at 1873 K (1600 C)

Jiwon Park, Seetharaman Sridhar, Richard J. Fruehan

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The activity coefficient of SiO2 in SiO2-Al 2O3-CaO slags with limited Al2O3 content was measured by equilibrating Fe-C-Si melt and slags at 1873 K (1600 C). When the Al2O3 content was between 48 and 54 wt pct, the results show that γSiO2 rapidly decreases as the amount of SiO2 in the slag decreases. The equilibrium amounts of Si and Al in a Fe melt in equilibrium with SiO2-Al2O3-CaO slags were calculated based on the result of this study.

Original languageEnglish (US)
Pages (from-to)13-15
Number of pages3
JournalMetallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Issue number1
StatePublished - Feb 2013
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry


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