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Phase Diagram and Structure of Melts of the System CaO—TiO2—SiO2

V. Daněk and I. Nerád

Institute of Inorganic Chemistry, Slovak Academy of Sciences, SK-842 36 Bratislava

 

E-mail: uachdane@savba.sk

Received: 18 December 2000  Revised: 12 June 2002

Abstract: Phase diagrams of the systems CaO—TiO2 and CaO—TiO2—SiO2 were calculated using thermodynamic model of silicate melts. The calculated phase diagrams fit the experimentally determined ones well, assuming that the present TiO2 behaves as network-forming oxide in the prevailing concentration region of the ternary system. For the better fit in the CaO-, TiO2-, and SiO2-rich concentration regions, the activities of these components were set to be equal to their mole fraction. This means that in the prevailing concentration region of the ternary system TiO2 participates in the formation of the polyanionic network.

Full paper in Portable Document Format: 564a241.pdf

 

Chemical Papers 56 (4) 241–246 (2002)

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