About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
Mixing Parameters Optimization of Spherical, Micron-Sized, Nanoporous Copper Foam and Copper Nanoparticles Hybrid Feedstock for Improved Spreadability in Powder Bed Additive Manufacturing |
| Author(s) |
Laura Duenas Gonzalez, Bruno Azeredo |
| On-Site Speaker (Planned) |
Laura Duenas Gonzalez |
| Abstract Scope |
In powder bed-based additive manufacturing (PBAM), hybrid feedstocks of microscale powder and nanoparticles enhance consolidation efficiency and mechanical strength of printed parts. For spherical, micron-sized, nanoporous metal foam (SM-NMF), added nanoparticles enable nanoscale welding while preserving porosity and size-dependent properties such as high reactivity and surface area—important for applications in energy storage, heat exchangers, and medical devices. However, nanoparticles and the dry mixing process can negatively impact on the spreadability— the ability to form consistent, even layers during deposition. This study investigates the influence of rotational mixing speed (250-650 revolutions per minute) on the spreadability of SM-NMF, using single-layer beds (90 × 90 × 0.35 mm³) deposited via the Doctor Blade method. Preliminary findings show that 250 RPM provides optimal results, preserving pore structure and improving layer uniformity. Future work will examine how nanoparticle size and loading affect powder spreadability behavior. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Powder Materials, Copper / Nickel / Cobalt |