About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Ceramic Materials and Processing
|
| Presentation Title |
Effect of Microwave-Assisted Processing on the Microstructural Evolution and Grain-Growth Kinetics of Yttria-Stabilized Zirconia |
| Author(s) |
Mohan Thorat, Edward Sabolsky, Tugrul Yumak, Javier Mena, Katarzyna Sabolsky |
| On-Site Speaker (Planned) |
Mohan Thorat |
| Abstract Scope |
Yttria-stabilized zirconia is widely recognized as a promising electrolyte material for SOFC/SOEC applications due to its high oxygen-ion conductivity, excellent chemical stability. However, conventional sintering of YSZ typically requires high temperatures and extended processing times, which can promote excessive grain growth and adversely affect ionic conductivity and electrochemical performance.
This study investigates the effects of microwave-assisted processing on the microstructure, densification behavior, and grain growth kinetics of YSZ electrolytes. YSZ specimens were sintered using microwave-assisted processing at various temperatures and heating conditions. Microstructural evolution, including grain growth behavior, grain-boundary characteristics, and lattice ordering, was investigated to elucidate the influence of microwave-assisted processing on dense YSZ, while phase evolution was evaluated using X-ray diffraction. Electrochemical impedance spectroscopy was employed to evaluate ionic conductivity and to compare performance with conventionally sintered materials. This approach offers a promising pathway to reduce processing time and energy consumption in the fabrication of high-performance SOFC/SOEC electrolytes. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Energy Conversion and Storage, |