About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
2020 Technical Division Student Poster Contest
|
Presentation Title |
SPG-62: Experimental and Thermodynamic Modelling of Binary Phase Diagrams Under Pressure |
Author(s) |
Moran Emuna, Aviva Melchior, Eyal Yahel, Guy Makov |
On-Site Speaker (Planned) |
Moran Emuna |
Abstract Scope |
Binary phase diagrams are of scientific and practical importance in material science. In particular, they represent the stability regions of solid and liquid phases formed by the two components. Pressure affects phase diagrams both by altering the interactions, which control the nature of the diagram, and by the emergence of new phases and phase boundaries. In the present contribution we study the pressure evolution of several binary systems (Bi-Sb, Pb-Sb) by accurate sound velocity measurements, XRD in diamond anvil cell (DAC), density measurements and advanced thermodynamic model which describe the pressure dependence of the systems. By incorporating pressure into the model and validating the results against accurate measurements, we are able to predict the pressure dependence of binary phase diagrams; including changes in the nature of the diagram, shifts of eutectic points and the evolution of interaction parameters with pressure. |
Proceedings Inclusion? |
Undecided |