High Temperature Thermochemistry Laboratory고온열화학연구실

Key phase diagram experiments and thermodynamic optimization were performed for the binary K₂O-SiO₂ system. For the first time, the temperature of eutectic reaction: Liquid → K₄SiO₄ + K₂SiO₃ was successfully measured at 714 ± 6 °C using thermal analysis technique with sealed Pt capsules. Thermodynamic optimization based on the critical evaluation of all available experimental data was conducted to obtain a set of self-consistent thermodynamic functions for the K₂O-SiO₂ system. This optimization can well reproduce all available and reliable thermodynamic properties and phase diagram data as well as melt structure in the K₂O-SiO₂ system.