| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Bulk Metallic Glasses XIX
|
| Presentation Title |
The Secondary Glass Phase in High Fragility PtCuP Bulk Metallic Glass |
| Author(s) |
Sydney L. Corona, Jong H. Na, Qi An, William A. Goddard, Konrad Samwer, William L. Johnson |
| On-Site Speaker (Planned) |
Sydney L. Corona |
| Abstract Scope |
Bulk Metallic Glasses (BMGs) – traditionally understood as a single-phase disordered glass – display a liquid-liquid (glass-glass) phase transition at the fragile limit in PtCuP glass. Thermodynamic studies on this system revealed a repeatable and well-defined latent heat at high Angell fragility, and the existence of this transition leads to a natural resolution to the Kauzmann Paradox.
This work investigates the mechanical properties of the two liquid/glass phases through Vicker’s hardness and shear modulus, as well as structural and compositional analysis via Scanning Electron Microscopy (SEM)-paired Energy Dispersive Spectroscopy (EDS) and dark-field Transmission Electron Microscopy (TEM). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Other, |