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Hüseyin Özkan Toplan

Hüseyin Özkan Toplan

Sakarya University, Turkey

Title: The Crystallization Kinetics of the Mgo-Al2o3-Sio2-Tio2-Bi2o3 Glass Ceramics system produced from Industrial waste

Biography

Biography: Hüseyin Özkan Toplan

Abstract

The MgO-Al2O3-SiO2-TiO2 glass system was prepared by melting method. The crystallization behaviour and crystallization kinetics of a sample with glass ceramic composition were examined. DTA and XRD analysis revealed the crystallization of Ca0.965Mg2Al16O27 cordierite (Mg2Al4Si5O18) and Fe2TiO5 phases. The activation energy for the crystallization of cordierite phase has been evaluated, and the crystallization mechanism has been studied by applying DTA measurements performed at various heating rates. The results indicate that the dominant crystallization mechanism for this system is bulk crystallization dominated by three-dimensional growth. The average calculated values of crystallization and viscous flow for the formation of crystal phases from the glass matrix were measured to be 330 kJmol-1 and 377 kJmol-1, respectively.