About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Powder and Ceramic Materials Science
|
Presentation Title |
Mixed-Alkali Effect on Metaphosphate Glass Forming Liquids |
Author(s) |
Tae-Min Yeo, Jung-Wook Cho |
On-Site Speaker (Planned) |
Tae-Min Yeo |
Abstract Scope |
Continuous substitution of one alkali with another is known to result in the so-called mixed-alkali effect (MAE), typically characterized by a strong nonlinear compositional variation in the thermal and transport properties of various glass-forming systems such as the glass transition temperature Tg, ionic conductivity and viscosity. However, systematic investigations of the MAE on the rheological behavior of glass-forming liquids remain largely missing in the literature. In this work, the rheological behavior of supercooled mixed-alkali metaphosphate liquids of general composition LixNa1-xPO3 is studied using oscillatory parallel plate rheometry. The results of this study detailing the MAE on Tg, fragility and viscoelasticity of these liquids will be reported, and the fundamental nature of this effect will be discussed. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Characterization, Mechanical Properties |