| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys IV: Mechanical Behavior
|
| Presentation Title |
Scanning Tunneling Microscopy for High Entropy Materials |
| Author(s) |
TeYu Chien |
| On-Site Speaker (Planned) |
TeYu Chien |
| Abstract Scope |
High entropy materials have drawn attentions of scientists and engineers for their various functionalities and properties. While a wide variety of properties are being studied in these materials, microscopic understanding is still challenging. In this talk, I will talk about our recent efforts in using scanning tunneling microscopy (STM) based techniques to study this intriguing material system. By using synchrotron X-ray STM (SX-STM), which combines the atomic scale spatially resolving STM with the elemental resolving X-ray absorption spectroscopy (XAS), distinguishing elements at sub-nm scale on the surface of HEA can be achieved. The possibility of using STM on studying short-range order and local lattice distortion will be discussed. Methods of identifying elements using dI/dV spectra with assistance of machine learning will be discussed. And finally, the possibility of the strong correlation physics in the high entropy materials (in HEAs and high entropy transition metal dichalcogenides) will be discussed as well. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, High-Entropy Alloys, |