About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Thermodynamics and Kinetics
|
Presentation Title |
Theoretical Calculation of Atomic Size in a Solid Solution |
Author(s) |
Tetsuo Mohri |
On-Site Speaker (Planned) |
Tetsuo Mohri |
Abstract Scope |
Experimentally, the atomic size in a solid solution has been well defined as a partial molar volume at a given concentration. Theoretically, however, it is not an easy task to provide a clear definition. We formulated the free energy of a Cu-Au system within the Cluster Variation Method in terms of atomic volumes of constituent elements, and minimized the free energy to optimize the equilibrium atomic volume. Interestingly, each element keeps the volume in the pure metal over the wide concentration range. This result is discussed in terms of local and global relaxations of the system. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |