Abstract
The effect of 3d-transition metal oxides on the surface tension of the 17.5Na2O · 82.5SiO2 · nRO (R = Mn, Fe, Co, Ni, Cu; n = 0.1–10) melt is revealed in the temperature range 1250–1450°C. It is found that cobalt oxide in the range of low concentrations (0.1–1.0 mol %) is characterized by anomalously low values of the surface tension. In the case of CoO oxide, the surface tension increases as the temperature increases and the melts containing MnO, FeO, NiO, and CuO oxides have negative temperature coefficients. In the range of high concentrations of the studied oxides (n = 10 mol %), the surface tension of melts decreases with an increase in the atomic number of cation in the sequence Mn → Fe → Co → Ni → Cu.
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Original Russian Text Copyright © 2005 by Fizika i Khimiya Stekla, Zhabrev, Kayalova, Efimenko.
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Zhabrev, V.A., Kayalova, S.S. & Efimenko, L.P. Effect of the 3d-Transition Metal Oxides on the Surface Tension of the Sodium Silicate Melt. Glass Phys Chem 31, 606–610 (2005). https://doi.org/10.1007/s10720-005-0104-y
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DOI: https://doi.org/10.1007/s10720-005-0104-y