| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Functional Nanomaterials
|
| Presentation Title |
Effect of Graphene Heterostructures on Electrical Performance of Ultra-conductors |
| Author(s) |
Keerti S. Kappagantula, Md. Reza-E-Rabby, Aditya Nittala, Pedro Ottoni Negrao, Tej Poudel, Julian Escobar Atehortua, Bharat Gwalani, Kashi Subedi, Kishor Nepal, David Drabold |
| On-Site Speaker (Planned) |
Keerti S. Kappagantula |
| Abstract Scope |
Ultra-conductors are an emerging class of metal composites demonstrating enhanced electrical properties over base metals owing to conductive additives such as graphene and CNTs in microstructures. They are sought-after for their energy-efficient applications in transportation, grid, and electronics. Ultra-conductor functionalities are influenced by the nature of carrier generation and transport affected by the presence of the nanoscale additives in their microstructure. In this talk, we present recent findings on the modulation of electrical conductivity and temperature coefficient of resistance of copper and aluminum with the introduction of semi-metallic and semiconductor graphene heterostructures. We discuss the ability of solid phase processing techniques such as friction extrusion in generating these heterostructures in situ during processing. We examine the effects of such heterostructures on relevant electrical properties of the constituent composites via experimental and first-principles modeling approaches. Finally, we introduce computational tools that aid in designing such complex heterostructural composites with desired functionalities. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Nanotechnology, Electronic Materials |