About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ultrahigh-Temperature Processing and Manufacturing
|
| Presentation Title |
Flash is Not Just Thermal Runaway |
| Author(s) |
Ju Li, Ric Fulop, Zihan Lin |
| On-Site Speaker (Planned) |
Ju Li |
| Abstract Scope |
We will show recent experimental evidences that electrical current driven Flash (as coined by Rishi Raj) cannot be just a thermal behavior, in the sense that point defects at thermodynamic equilibrium at any temperature cannot fully explain the physical properties of the material under Flash. While coupled thermal-electrical instability does occur (that is dependent on external boundary conditions), something out of thermal equilibrium, i.e. certain ionic/electronic/photonic disorders, are intrinsic to Flash. In ceramics, we can call it "solid-state plasma" ["Enhanced mobility of cations and anions in the redox state: The polaronium mechanism," Acta Materialia 232 (2022) 117941; "Transverse and Longitudinal Degradations in Ceramic Solid Electrolytes," Chem. Mater. 34 (2022) 5749] |
| Proceedings Inclusion? |
Planned: |