About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Reduction Technology
|
| Presentation Title |
Granular Blends of Coke and Graphite in the Lying-beds: Experimental Insights into Their Mechanical and Electrical Properties |
| Author(s) |
Rohini Nandan Tripathy, Daniel Marceau, Duygu Kocaefe, Lukas Dion, Martin Truchon, Guillaume Bonneau, Antoine Godefroy |
| On-Site Speaker (Planned) |
Rohini Nandan Tripathy |
| Abstract Scope |
This experimental study investigates the mechanical and electrical properties of the granular blends used as the Lying-bed in electrical preheating of the aluminum reduction cells. Understanding these properties is crucial for optimizing the preheating process, which significantly impacts cathode integrity and longevity. The mechanical properties were determined by the direct shear test, while the electrical properties were obtained from a custom-built setup emulating in situ conditions. The properties such as angle of repose, elastic moduli, electrical resistivity and specific electrical contact resistivity are determined for the various granular blends. The obtained data provides critical insights into how blend composition influences those properties. These comprehensive material properties will be invaluable for optimizing the puck geometry in the Lying-beds. Furthermore, these data will serve as essential input for precise numerical simulations of the preheating process, enabling accurate predictions of cathode surface temperature distribution and material behavior within the aluminum reduction cell. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Other |