About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Chemistry and Physics of Interfaces
|
Presentation Title |
J-14: Friction and Wear Characterization of Carbon Composites for Continuous Electric-field Assisted Sintering |
Author(s) |
Tomas Grejtak, Harshvardhan Singh, Andrew J Gorman, James W Klett, Jun Qu |
On-Site Speaker (Planned) |
Tomas Grejtak |
Abstract Scope |
Continuous Electric-Field Assisted Sintering (CEFAS) is an emerging manufacturing method to create advanced materials for applications in extreme conditions. During the manufacturing process, a carbon-based brush is used to pass a high current to heat up a carbon-based roller through Joule heating. The temperature at the sliding interface can reach > 1000°C. Minimizing the wear and friction at the brush-roller sliding interface is necessary. In this work, pin-on-disk sliding friction and wear experiments were conducted on a series of combinations of carbon composites. The tests were performed in an argon environment at 800°C. Morphological characterization and compositional analysis of the worn surfaces were used to determine the wear mechanisms. The contacts of graphite – carbon-carbon composite and graphite – graphite resulted in a higher wear resistance and lower friction than the carbon-carbon composites pair. The outcomes of this work provide guidance for selecting the brush and roller materials for CEFAS. |
Proceedings Inclusion? |
Planned: |
Keywords |
Thin Films and Interfaces, Environmental Effects, Other |