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Experimental Investigation of the Viscosities in $CaO-SiO_2-MgO-Al_2O_3$ and $CaO-SiO_2-MgO-Al_2O_3-TiO_2$ Slags

Shankar, Amitabh and Görnerup, Mårten and Lahiri, AK and Seetharaman, S (2007) Experimental Investigation of the Viscosities in $CaO-SiO_2-MgO-Al_2O_3$ and $CaO-SiO_2-MgO-Al_2O_3-TiO_2$ Slags. In: Metallurgical and Materials Transactions B, 38 (6). pp. 911-915.

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The viscosities of high alumina blast furnace slags were experimentally determined by the rotating cylinder method using the Brookfield digital viscometer model LVDV-II+ pro. Two different slag systems were considered for the current study, the $CaO-SiO_2-MgO-Al_2O_3$ quaternary and the $CaO-SiO_2-MgO-Al_2O_3-TiO_2$ quinary system. Experiments were conducted in the temperature range of 1650 to 1873 K. The effects of temperature, basicity, $TiO_2$, and silica activity of slags on viscosity were studied. The viscosity decreases with basicity for high alumina blast furnace slags with basicity in the range of 0.46 to 0.8. At high basicity (\sim 0.8), slag viscosity decreases even with a small amount of $TiO_2$ (\sim 2 pct) addition in the slag. With an increase in silica activity in the range of 0.1 to 0.4, the slag viscosity increases, the increases being steeper below the liquidus temperature.

Item Type: Journal Article
Publication: Metallurgical and Materials Transactions B
Publisher: Springer
Additional Information: Copyright of this article belongs to Springer.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 24 Jul 2008
Last Modified: 27 Aug 2008 13:38
URI: http://eprints.iisc.ac.in/id/eprint/15226

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