About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials Design and Processing Optimization for Advanced Manufacturing: From Fundamentals to Application
|
Presentation Title |
Designing Ultra-conductors Using Solid Phase Processing |
Author(s) |
Keerti S. Kappagantula, Aditya Nittala, William Frazier, Kashi Subedi, Xiao Li, Woongjo Choi, Bharat Gwalani, Joshua Silverstein, Julian Atehortua, Hrishikesh Das, Frank Kraft, David Drabold, Glenn Grant |
On-Site Speaker (Planned) |
Aditya Nittala |
Abstract Scope |
Ultra-conductors are metal composites with nanoadditives that demonstrate enhanced current density, electrical conductivity and lowered temperature coefficient of resistance over commercial conductors (aluminum, copper alloys) used in applications such as electric grid, motors, and automobiles. Despite two decades of research, manufacturing ultra-conductors has been a challenge. While conventional physics informs that adding a second phase to a pure metal decreases electrical performance, recent research demonstrates that the use of advanced manufacturing processes such as shear processing can enable ultra-conductive behavior in metal composites with graphene additives. This talk will highlight the microstructural features and process pathways identified in ultra-conductors manufactured via melt-based, hot extrusion and shear assisted processing and extrusion technologies that lead to improved conductor behavior. A combination, experimental process conditions, composite microstructural characterization studies, finite element and molecular dynamic simulation results will be presented to introduce the ultra-conductor design process using advanced manufacturing techniques in this presentation. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nanotechnology, Process Technology, Composites |