Effect of Al2O3 and CaO/SiO2 on the viscosity of calcium-silicate-based slags containing 10 mass Pct MgO

Hyuk Kim, Hiroyuki Matsuura, Fumitaka Tsukihashi, Wanlin Wang, Dong Joon Min, Il Sohn

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Abstract

The effect of Al2O3 and CaO/SiO2 on the viscosity of the CaO-SiO2-10 mass pct MgO-Al2O3 slags was studied at fully liquid temperatures of 1773 K (1500 C) and below. At fixed CaO/SiO2 between 0.8 and 1.3, higher Al2O 3 content increased the slag viscosity due to the polymerization of the aluminate structures. At fixed Al2O3 of 15 and 20 mass pct, increasing the CaO/SiO2 from 0.8 to 1.3 resulted in lower viscosity due to the depolymerization of the aluminate structure.

Original languageEnglish
Pages (from-to)5-12
Number of pages8
JournalMetallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume44
Issue number1
DOIs
Publication statusPublished - 2013 Feb 1

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All Science Journal Classification (ASJC) codes

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

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