About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thermodynamics for Sustainability: An EPD Symposium in Honor of Kazuki Morita
|
| Presentation Title |
Fundamental Study on Thermal Conductivity in Molten Oxide Systems for High-Temperature Materials Processing |
| Author(s) |
Youngjae Kim, Kazuki Morita |
| On-Site Speaker (Planned) |
Youngjae Kim |
| Abstract Scope |
This work revisits a study originally conducted in collaboration with Professor Kazuki Morita, commemorating his enduring contributions to high-temperature materials processing. We investigated the thermal conductivity of various molten slag and flux systems across a wide temperature range. Thermal conductivity increased in the glassy phase, plateaued near the one-dimensional Debye temperature (Θᴰ₁), and declined upon further heating in the molten phase. Using a one-dimensional phonon gas model, we attributed these trends to changes in heat capacity, sound velocity, and phonon mean free path. ııB MAS-NMR revealed the role of boron coordination environments, and alkali cation effects were interpreted via ionization potentials. This study reflects the foundational insights shared with Professor Kazuki Morita, whose vision shaped our understanding of thermal transport in molten oxide systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Pyrometallurgy, Extraction and Processing, Process Technology |