About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Powder and Ceramic Materials Science
|
Presentation Title |
Effects of Temperature on Domain Wall Mobility in Single Crystal BaTiO3 |
Author(s) |
Quinten Yurek, Justin Cheng, Nathan Mara, Jessica Krogstad |
On-Site Speaker (Planned) |
Quinten Yurek |
Abstract Scope |
It has been indirectly shown that ferroelastic domain reorientation in barium titanate occurs at lower stresses at elevated temperatures. However, the governing mechanism for domain reorientation and its dependence on temperature is not well understood. This work uses temperature-dependent in-situ SEM microcrystal (pillar) compression to understand domain motion and the role of temperature. By correlating spontaneous strain events to growing domains in SEM we calculate the shear stress needed to facilitate domain growth. It has been shown that domain movement occurs well before what has been reported as the coercive stress range in barium titanate (10-33MPa). Therefore, we aim to resolve the mechanism governing domain growth. This study will present a systematic variation of both orientation and temperature to further elucidate the underlying mechanisms responsible for tailorable domain wall mobility in a broader class of ferroelastic ceramics. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Other, Other |