High-Temperature Mass Spectrometric Study of the CaO-TiO2-SiO2 System

• DOI: 10.1515/htmp.2000.19.5.345
• Publication Date: 2011-05-06T10:07:27Z
• Authors: O. Ostrovski,; G. Tanell,; V.L. Stolyarova,; M.M. Shultz,; S.I. Shornikov,; A.I. Ishkilydin,
• Keywords: Vaporization; Isothermal process

The Ca0-Ti0 2 -Si0 system, containing about 10.5 and 16.5 mole % Ti0 was examined at temperatures 1850-2200 Κ using the Knudsen effusion method.Partial pressures of SiO Ο over samples were determined by complete isothermal vaporization method ion current comparison 1850 Si0 activities in system found to have negative deviations from ideality for all compositions except sample with high concentration (Ca0/Si0 =0.6, 16 ).Replacement CaO slags relatively basicity (xfc«c/*si02 > l) causes a sharp increase activity coefficient In more acidic slags, addition Ca0-Si0 does not strong effect on coefficient.