| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior at the Nanoscale V
|
| Presentation Title |
N-6: Atomistic Modeling of Fundamental Deformation Mechanisms in MAX Phases |
| Author(s) |
Gabriel Plummer, Garritt Tucker |
| On-Site Speaker (Planned) |
Gabriel Plummer |
| Abstract Scope |
MAX phases are a large family of layered, ternary metal carbides and nitrides, which possess a unique combination of metallic and ceramic properties. While MAX phases have been recognized as remarkable materials and are utilized in a wide variety of applications, an understanding of their fundamental deformation mechanisms is still lacking. Atomistic modeling studies would contribute greatly to resolving this outstanding issue, but presently no appropriate interatomic potentials exist. Herein, utilizing a newly developed bond order potential for the Ti<sub>3</sub>AlC<sub>2</sub> and Ti<sub>3</sub>SiC<sub>2</sub> MAX phases, the mechanisms of MAX phase deformation are probed, with an emphasis on understanding their well-documented kinking nonlinear elastic (KNE) behavior and the role of their inherently layered crystalline structure. The fundamental insight gained from these atomistic studies will allow for better engineering of MAX phases to fully take advantage of their unique properties and enable extensions to other layered materials as well. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |