About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
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Advancing the Frontier of Powder Materials Processing and Sintering: A MPMD/EPD Symposium in Honor of Eugene Olevsky
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| Presentation Title |
Sustainable Additive Manufacturing of Copper Using Chemically Modified Graphene |
| Author(s) |
Yuhan Wang, Shishira Bhagavath, Ravi Aswathanarayanaswamy, Sarah Glanvill, Haydon Knapp, Michal Klosowski, Mark Isaacs, Alexander Rack, Nick Jones , Eduardo Saiz, Iuliia Elizarova, Chu Lun Alex Leung, Peter Lee |
| On-Site Speaker (Planned) |
Yuhan Wang |
| Abstract Scope |
Laser Powder Bed Fusion (LPBF) is an advanced additive manufacturing (AM) technique that builds intricate parts layer by layer using metal powders. Despite its potential application in sectors like propulsion, energy, and transportation, LPBF is limited by the availability of suitable feedstocks. Materials such as copper and aluminium are especially challenging due to their high reflectivity and low near infrared (NIR) laser absorption, thus requiring higher energy input. This study investigates a carbon-based additive, Chemically Modified Graphene (CMG), which significantly enhances copper’s absorbance in the NIR range. Cu-CMG feedstock showed a threefold increase in absorbance, expanding the process window and enabling printing at lower power and higher speeds, contributing to improved sustainability of copper AM. A process map was developed for Cu-CMG and benchmarked against other additives. This innovation could enable high-performance copper AM components, supporting the next generation of electric motors, heat exchangers, and thermal management systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Copper / Nickel / Cobalt, Sustainability |