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Liquid Immiscibility and Thermodynamic Assessment of the Al2O3–TiO2–SiO2 System.

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Title: Liquid Immiscibility and Thermodynamic Assessment of the Al2O3–TiO2–SiO2 System.
Authors: Ilatovskaia, M.1 (AUTHOR) mariia.ilatovskaia1@iww.tu-freiberg.de, Fabrichnaya, O.1 (AUTHOR)
Source: Journal of Phase Equilibria & Diffusion. Feb2022, Vol. 43 Issue 1, p15-31. 17p.
Subjects: Immiscibility, Phase equilibrium, Liquid alloys, Liquids, Miscibility, Ionic liquids
Abstract: Phase equilibria in the TiO2–SiO2 system have been studied experimentally using DTA and SEM/EDX. The thermodynamic parameters for the TiO2–SiO2 system have been assessed considering new experimental data of the present work and from the literature. Moreover, the miscibility of the liquid in the Al2O3–TiO2–SiO2 system has been studied at 2013 K in air and shrinkage of the miscibility gap at 3.8 mol% Al2O3 has been demonstrated. The experimental data obtained in the present work and literature as well as the thermodynamic databases for the binary Al2O3–TiO2, TiO2–SiO2, and Al2O3–SiO2 systems have been used to derive the thermodynamic description of the Al2O3–TiO2–SiO2 system using the CALPHAD approach. Solid phases have been modeled using the compound energy formalism. The liquid phase has been described by the two-sublattice partially ionic liquid model. A set of self-consistent parameters have been proposed, which resulted in a reasonably good agreement between the calculated and experimental data on the phase equilibria, liquid immiscibility, and thermodynamic properties in the Al2O3–TiO2–SiO2 system. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Phase Equilibria & Diffusion is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="AR" term="%22Ilatovskaia%2C+M%2E%22">Ilatovskaia, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mariia.ilatovskaia1@iww.tu-freiberg.de</i><br /><searchLink fieldCode="AR" term="%22Fabrichnaya%2C+O%2E%22">Fabrichnaya, O.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Phase+Equilibria+%26+Diffusion%22">Journal of Phase Equilibria & Diffusion</searchLink>. Feb2022, Vol. 43 Issue 1, p15-31. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Immiscibility%22">Immiscibility</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+equilibrium%22">Phase equilibrium</searchLink><br /><searchLink fieldCode="DE" term="%22Liquid+alloys%22">Liquid alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Liquids%22">Liquids</searchLink><br /><searchLink fieldCode="DE" term="%22Miscibility%22">Miscibility</searchLink><br /><searchLink fieldCode="DE" term="%22Ionic+liquids%22">Ionic liquids</searchLink>
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  Data: Phase equilibria in the TiO2–SiO2 system have been studied experimentally using DTA and SEM/EDX. The thermodynamic parameters for the TiO2–SiO2 system have been assessed considering new experimental data of the present work and from the literature. Moreover, the miscibility of the liquid in the Al2O3–TiO2–SiO2 system has been studied at 2013 K in air and shrinkage of the miscibility gap at 3.8 mol% Al2O3 has been demonstrated. The experimental data obtained in the present work and literature as well as the thermodynamic databases for the binary Al2O3–TiO2, TiO2–SiO2, and Al2O3–SiO2 systems have been used to derive the thermodynamic description of the Al2O3–TiO2–SiO2 system using the CALPHAD approach. Solid phases have been modeled using the compound energy formalism. The liquid phase has been described by the two-sublattice partially ionic liquid model. A set of self-consistent parameters have been proposed, which resulted in a reasonably good agreement between the calculated and experimental data on the phase equilibria, liquid immiscibility, and thermodynamic properties in the Al2O3–TiO2–SiO2 system. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Phase Equilibria & Diffusion is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s11669-021-00935-4
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      – Code: eng
        Text: English
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        PageCount: 17
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      – SubjectFull: Immiscibility
        Type: general
      – SubjectFull: Phase equilibrium
        Type: general
      – SubjectFull: Liquid alloys
        Type: general
      – SubjectFull: Liquids
        Type: general
      – SubjectFull: Miscibility
        Type: general
      – SubjectFull: Ionic liquids
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      – TitleFull: Liquid Immiscibility and Thermodynamic Assessment of the Al2O3–TiO2–SiO2 System.
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            NameFull: Ilatovskaia, M.
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            NameFull: Fabrichnaya, O.
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            – D: 01
              M: 02
              Text: Feb2022
              Type: published
              Y: 2022
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