Viscosity of SiO2-"FeO"-CaO system in equilibrium with metallic Fe

Chen, Mao and Zhao, Baojun (2014) Viscosity of SiO2-"FeO"-CaO system in equilibrium with metallic Fe. Metallurgical and Materials Transactions B, 46 2: 577-584. doi:10.1007/s11663-014-0241-6

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Author Chen, Mao
Zhao, Baojun
Title Viscosity of SiO2-"FeO"-CaO system in equilibrium with metallic Fe
Formatted title
Viscosity of SiO2-“FeO”-CaO system 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 2014-11-19
Year available 2014
Sub-type Article (original research)
DOI 10.1007/s11663-014-0241-6
Open Access Status
Volume 46
Issue 2
Start page 577
End page 584
Total pages 8
Place of publication New York, NY, United States
Publisher Springer New York
Collection year 2015
Language eng
Formatted abstract
Viscosities of the synthetic slags have been measured at the temperature range of 1423 K to 1773 K (1150 °C to 1500 °C) in the SiO2-“FeO”-CaO system in equilibrium with Fe. The rotational spindle technique was employed in the measurements using molybdenum crucibles and spindles. Analysis of the quenched sample by electron probe X-ray microanalysis after the viscosity measurement enables the composition and microstructure of the slag to be directly linked with the viscosity. Effects of CaO and “FeO” on viscosity have been compared at different SiO2 concentrations. It was found that at low SiO2 concentration, the viscosities increase with the increasing CaO/“FeO” ratio. At high SiO2 concentration, the viscosities first decrease and then increase with the increasing CaO/“FeO” ratio. The activation energies increase with the increasing CaO/“FeO” ratio. The modified Quasi-chemical viscosity model has been further optimized in this system using the new viscosity measurements.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online: 19 November 2014

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2015 Collection
 
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Created: Fri, 06 Feb 2015, 10:41:40 EST by Mr Mao Chen on behalf of School of Chemical Engineering