About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
Influence of Storage Environment on the Powder Spreadability of Spherical, Micron-Sized, Nanoporous Copper Foam for Powder Bed Additive Manufacturing |
| Author(s) |
Laura Duenas Gonzalez, Bruno Azeredo |
| On-Site Speaker (Planned) |
Laura Duenas Gonzalez |
| Abstract Scope |
Spherical, micron-sized, nanoporous copper foam represents a promising feedstock for powder bed additive manufacturing methods, such as Binder Jetting and Powder Bed Fusion. Its high surface area and reactivity enable use in advanced applications such as batteries and medical devices. Despite these favorable characteristics, exposure to humidity during manufacturing and storage poses a challenge for powder spreading. This study investigates the influence of environmental humidity on powder spreadability using single-layer beds (90 × 90 × 0.35 mm³) deposited with the Doctor Blade method. Preliminary results show a significant decrease in spreadability after exposure to high-energy rotational mixing, which increases contact with ambient moisture (30% RH). However, spreadability improves following 12 hours of storage in a desiccator after the mixing step, indicating that post-mixing storage conditions play a critical role. Future work will explore additional storage methods, such as vacuum sealing and inert gas environments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Powder Materials, Copper / Nickel / Cobalt |