Ceramics-Silikáty 39, (1) 9 - 13 (1995) |
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LIQUIDUS TEMPERATURE AND STRUCTURE OF THE GLASS MELTS IN THE 15 Na₂O.10 (MgO, CaO, TiO₂, ZrO₂).75 SiO₂ SYSTEM
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Šimurka Peter 1, Liška Marek 1, Antalík Jozef 2
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1 Institute of Inorganic Chemistry, Slovak Academy of Sciences,
Martina Rázusa 10, 911 01 Trenčín, Slovak Republic
2 Department of Physical Chemistry, Slovak Technical University,
Radlinského 9, 812 37 Bratislava, Slovak Republic
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Keywords: The liquidus temperature in the 15 Na₂O.10 (MgO, CaO, TiO₂, ZrO₂).75 SiO₂ glass system was measured. The data have been used for the indication of the structural role of TiO₂ in this glass system. From the values of liquidus temperature the activity of SiO₂ in the melt was calculated according to Le Chatelier-Schreder equation. The analysis of liquidus temperature, based on the SiO₂ activity coefficient evaluation indicates, that Ti⁴⁺ forms discrete anionic complexes with modifying cations.
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