Abstract
The wettability of graphite by the molten TiO2-CaO-SiO2-Al2O3-MgO (in mass%) Blast Furnace slag has been investigated using the dispensed drop method at 1673 K under the Argon atmosphere (Pressure≈ 1.10 atm). With the increase of TiO2 content in the slag the contact angle rises from 127° up to 147°, meaning that the TiO2 worses the wettability between the molten slag and the graphite. On the contrary, the CaO/SiO2 mass ratio can promote the wettability. Interfacial tensions between the slag and the graphite were also evaluated by using the Young’s Equation. Thermodynamics calculations were also carried out to study the interfacial reactions, showing that the reaction sequence agree with the following: reduction of MgO, SiO2, TiO2, boudouard reaction and formation of 2CaO Ti2O3.
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Liu, Y., Lv, X., Bai, C., Li, B. (2016). Wettability of Pyrolytic Graphite by Molten Blast Furnace Slag Bearing TiO2. In: Ikhmayies, S.J., et al. Characterization of Minerals, Metals, and Materials 2016. Springer, Cham. https://doi.org/10.1007/978-3-319-48210-1_11
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DOI: https://doi.org/10.1007/978-3-319-48210-1_11
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