| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Sustainable and Eco-Friendly Material Development and Application
|
| Presentation Title |
Synthesis of Aluminum/graphene Composites with Enhanced Electrical Properties through Shear Assisted Processing and Extrusion |
| Author(s) |
Aditya K. Nittala, Md. Reza E Rabby, Joshua Silverstein, Bharat Gwalani, Keerti Kappagantula |
| On-Site Speaker (Planned) |
Aditya K. Nittala |
| Abstract Scope |
Improvements in the electrical performance of aluminum alloys are crucial to develop environmentally sustainable power transmission infrastructure. A major contributor to the transmission losses is the intrinsic resistivity of the conductor material.
In this study, we discuss the synthesis and characterization of aluminum-graphene metal matrix composites with enhanced electrical performance at room and elevated temperatures. The utility of shear assisted processing and extrusion (ShAPE) as an extrusion technology is examined through its efficacy in dispersing reduced graphene oxide flakes in the microstructure in bulk scale profiles, and the energy efficiency compared to conventional hot extrusion methods. The reduced graphene oxide flakes used in this work provide enhanced velocity pathways for the energy carriers in the aluminum microstructure. 3-m long, ~Ø2.5 mm AA1100/graphene composite wires have been extruded through ShAPE which have so far demonstrated an increase of ~7% in electrical conductivity and >6% decrease in temperature coefficient of resistance (TCR). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Process Technology, Composites |