Experimental investigation of phase relations and thermodynamic properties in the ZrO2–TiO2 system. Issue 1 (5th September 2017)

• Record Type: Journal Article
• Authors: Saenko, Ivan; Ilatovskaia, Maria; Savinykh, Galina; Fabrichnaya, Olga
• Is Part Of: Journal of the American Ceramic Society. Volume 101:Issue 1(2018)
• Page Start: 386
• Page End: 399
• Publication Date: 2017-09-05
• Subjects: Gibbs energy of formation -- modeling/model -- phase equilibria -- thermal analysis -- thermodynamics; Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.15176
• Languages: English
• ISSNs: 0002-7820

Abstract

Abstract: Phase relations in the ZrO2 –TiO2 system were studied experimentally using X‐ray diffraction (XRD), scanning electron microscopy combined with dispersive X‐ray spectrometry (SEM/EDX) and differential thermal analysis (DTA). The homogeneity ranges of ZrO2 and TiO2, as well as high temperature disordered β‐(Zr x Ti1− x )2 O4 compound were defined in the temperature range of 1700‐2040 K. Temperature and composition of eutectic reaction were measured. The standard enthalpy of formation of the β‐ZrTiO4 compound was obtained using high‐temperature oxide‐melt solution calorimetry. High temperature heat capacity measurement for the β‐ZrTiO4 compound was performed in the temperature range from 250 K to 1200 K. Thermodynamic description of ZrO2 –TiO2 system has been derived based on obtained experimental results and data from literature.