| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Processing Electroceramics in the Transmission Electron Microscope |
| Author(s) |
Jenna L. Wardini, Jairo Gonzalez, George Harrington, William Bowman |
| On-Site Speaker (Planned) |
Jenna L. Wardini |
| Abstract Scope |
We explore a unique electroceramic thermal processing approach that leverages the small thermal-mass of electron-transparent thin-films to apply rapid heating/cooling cycles in situ, in the transmission electron microscope (TEM). The emergent microstructures, crystallized from amorphous mixed-metal oxide thin-films, are iteratively evolved and characterized with a range of electron imaging, diffraction, and spectroscopy techniques to establish a relationship between characteristics of the evolving microstructure and the temperature-dependent electrical behavior, with particular interest placed on the effect of the grain boundary network on O2- transport. However, additional complexity in the phase-space is encountered under these processing conditions, leading to the formation of an abundance of unique phases. We explore ways to control the film phase, microstructure, and morphology that develops under in situ processing by investigating the effects of oxygen partial pressure and annealing temperature. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Characterization, Thin Films and Interfaces |