| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
|
| Presentation Title |
3D Printing of Hierarchical Porous Metal Structures |
| Author(s) |
Luyang Liu, Natalya Kublik, Bruno Azeredo, Xiangfan Chen |
| On-Site Speaker (Planned) |
Luyang Liu |
| Abstract Scope |
Nanoporous metal components are vital in electrochemical and catalytic applications due to their high specific surface area. Traditional powder metallurgy methods face limitations in dimensions and structural complexity. This study introduces an innovative 3D printing strategy using nanoporous copper powders and copper nanoparticles to create polymer matrix nanocomposites via micro-continuous liquid interface printing, followed by post-processing. Optimized resin composition achieves a high powder concentration of 65.98 wt.% without reducing the printing speed (4.17 μm·s–1). Sintering at 500 °C produces 3D nanoporous copper components with a ligament size of 99.77 ± 15.42 nm and porosity of 24.99 ± 2.31 %. The sintered samples exhibit chemical reactivity, e.g., an exothermic reaction upon first exposure to air, and an average resistivity of 8.4 × 10-4 Ω·m in an argon atmosphere. This approach enables rapid prototyping of complex 3D nanoporous copper components for applications like interdigitated battery electrodes and high surface area catalysts. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Powder Materials, Copper / Nickel / Cobalt |