Coupled phase diagram experiment and thermodynamic modeling of the ZnO-SnO2-SiO2 system

Jaesung Lee; Sunyong Kwon; In Ho Jung

doi:10.1016/j.jeurceramsoc.2025.117435

Coupled phase diagram experiment and thermodynamic modeling of the ZnO-SnO₂-SiO₂ system

Jaesung Lee, Sunyong Kwon, In Ho Jung

Multiscale Modeling & Materials by Desig

Research output: Contribution to journal › Article › peer-review

Abstract

The phase diagram of the ZnO-SnO₂-SiO₂ systems was experimentally investigated at 1200–1675 °C using the classical equilibration/quenching method and differential thermal analysis (DTA) followed by X-ray diffraction (XRD) phase analysis and electron probe micro-analysis (EPMA). Sealed platinum capsules were employed for preventing the evaporation of ZnO and SnO₂ in the experiments. For the first time, the general feature of the ZnO-SnO₂-SiO₂ phase diagrams was revealed experimentally. Based on new experimental phase diagram data, the ZnO-SnO₂-SiO₂ system was thermodynamically modeled using the CALculation of PHAse Diagram (CALPHAD) method, and the resultant models and optimized parameters were utilized to predict the entire phase diagram and thermodynamic properties of the ternary system.

Original language	English
Article number	117435
Journal	Journal of the European Ceramic Society
Volume	45
Issue number	12
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2025.117435
State	Published - Sep 2025

Funding

Financial support from the Seoul National University Steelmaking Consortium composed of Tata Steel Europe, Posco, Hyundai Steel, Nucor Steel, RioTionto Iron and Titanium, Nippon Steel Corp., JFE Steel, Voestalpine, RHI-Magnesita, SeAH Besteel, Doosan Heavy Industry and Construction, SCHOTT AG, Umicore, Vesuvius and Boston Metal is gratefully acknowledged.

Keywords

CALPHAD
Phase diagram
Thermodynamics
ZnO-SnO-SiO

Access to Document

10.1016/j.jeurceramsoc.2025.117435

Cite this

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title = "Coupled phase diagram experiment and thermodynamic modeling of the ZnO-SnO2-SiO2 system",

abstract = "The phase diagram of the ZnO-SnO2-SiO2 systems was experimentally investigated at 1200–1675 °C using the classical equilibration/quenching method and differential thermal analysis (DTA) followed by X-ray diffraction (XRD) phase analysis and electron probe micro-analysis (EPMA). Sealed platinum capsules were employed for preventing the evaporation of ZnO and SnO2 in the experiments. For the first time, the general feature of the ZnO-SnO2-SiO2 phase diagrams was revealed experimentally. Based on new experimental phase diagram data, the ZnO-SnO2-SiO2 system was thermodynamically modeled using the CALculation of PHAse Diagram (CALPHAD) method, and the resultant models and optimized parameters were utilized to predict the entire phase diagram and thermodynamic properties of the ternary system.",

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author = "Jaesung Lee and Sunyong Kwon and Jung, \{In Ho\}",

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AB - The phase diagram of the ZnO-SnO2-SiO2 systems was experimentally investigated at 1200–1675 °C using the classical equilibration/quenching method and differential thermal analysis (DTA) followed by X-ray diffraction (XRD) phase analysis and electron probe micro-analysis (EPMA). Sealed platinum capsules were employed for preventing the evaporation of ZnO and SnO2 in the experiments. For the first time, the general feature of the ZnO-SnO2-SiO2 phase diagrams was revealed experimentally. Based on new experimental phase diagram data, the ZnO-SnO2-SiO2 system was thermodynamically modeled using the CALculation of PHAse Diagram (CALPHAD) method, and the resultant models and optimized parameters were utilized to predict the entire phase diagram and thermodynamic properties of the ternary system.

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