About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Defects and Interfaces: Modeling and Experiments
|
Presentation Title |
Beyond Defect Counting |
Author(s) |
Khalid Hattar |
On-Site Speaker (Planned) |
Khalid Hattar |
Abstract Scope |
Nearly two decades ago, while interning with Drs. Richard “Dick” Hoagland and Amit Misra at Los Alamos National Laboratory, I learned the important research lesson of taking defect analysis beyond just counting to fundamental understanding. Starting with work during those internships explaining the increased radiation tolerance of copper-niobium multilayers to helium implantation as the layers decreased and the determination of stacking fault tetrahedra resulting from thermal annealing of pulsed-laser deposited nanocrystalline metals. The presentation will continue with work to utilize in-situ ion irradiation transmission electron microscopy to track the transient evolution defects including one-dimensional Brownian motion of dislocations loops. The later will include a reexamination of defect analysis a decade after original collection using machine learning and the new insight gained in the process. Finally, my last project with Dr. Dick Hoagland utilized in-situ ion irradiation transient grating spectroscopy to analyze the transient nature of radiation defects. |
Proceedings Inclusion? |
Planned: |
Keywords |
Thin Films and Interfaces, Nuclear Materials, Nanotechnology |