About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Thermodynamics and Kinetics
|
Presentation Title |
Ab initio study of the structure and stability of Al10V
|
Author(s) |
Hassan Albuhairan, Michael Widom |
On-Site Speaker (Planned) |
Hassan Albuhairan |
Abstract Scope |
We investigate the thermodynamic stability of Al10V using first-principles calculations. The cubic unit cell of this aluminum-rich phase contains eight cage-like structures, which may be empty or occupied by an Al atom. At finite temperatures, these guest atoms exhibit anharmonic vibrations at very low frequencies, resulting in negative free energies that stabilize the phase. We perform total energy, phonon, and anharmonic free energy calculations to study the compositional phase diagram of AlV near Al10V up to the melting point. Our analysis also identifies the most stable filling configuration of Al10V. |
Proceedings Inclusion? |
Planned: |
Keywords |
Phase Transformations, Aluminum, Computational Materials Science & Engineering |