Viscosity Measurements of "FeO"-SiO2 Slag in Equilibrium with Metallic Fe

Chen, Mao, Raghunath, Sreekanth and Zhao, Baojun (2013) Viscosity Measurements of "FeO"-SiO2 Slag in Equilibrium with Metallic Fe. Metallurgical and Materials Transactions B, 44 3: 506-515. doi:10.1007/s11663-013-9810-3


Author Chen, Mao
Raghunath, Sreekanth
Zhao, Baojun
Title Viscosity Measurements of "FeO"-SiO2 Slag in Equilibrium with Metallic Fe
Formatted title
Viscosity Measurements of ‘‘FeO’’-SiO2 Slag in Equilibrium with Metallic Fe
Journal name Metallurgical and Materials Transactions B   Check publisher's open access policy
ISSN 1073-5615
1543-1916
Publication date 2013-06
Year available 2013
Sub-type Article (original research)
DOI 10.1007/s11663-013-9810-3
Open Access Status
Volume 44
Issue 3
Start page 506
End page 515
Total pages 10
Place of publication New York, NY United States
Publisher Springer New York LLC
Collection year 2014
Language eng
Formatted abstract
The current study delivered the measurements of viscosities in the system "FeO"-SiO2 in equilibrium with metallic Fe in the composition range between 15 and 40 wt pct SiO2. The experiments were carried out in the temperature range of 1473 K to 1773 K (1200 C to 1500 C) using a rotational spindle technique. An analysis of the quenched sample by electron probe X-ray microanalysis (EPMA) after the viscosity measurement enables the composition and microstructure of the slag to be directly linked with the viscosity. The current results are compared with available literature data. The significant discrepancies of the viscosity measurements in this system have been clarified. The possible reasons affecting the accuracy of the viscosity measurement have been discussed. The activation energies derived from the experimental data have a sharp increase at about 33 wt pct SiO2, which corresponds to the composition of fayalite (Fe2SiO 4). The modified quasi-chemical model was constructed in the system "FeO"-SiO2 to describe the current viscosity data
Keyword Activation Energy
Iron oxides
Model
Modified quasichemical models
Silicates
Viscosity measurement
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2014 Collection
 
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