| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
Mechanical Properties of Nanoporous Silver:
Electrohydrodynmic-Redox Printing vs. PVD Sputtering |
| Author(s) |
Nikolaus Porenta, Rebecca Gallivan, Ralph Spolenak |
| On-Site Speaker (Planned) |
Nikolaus Porenta |
| Abstract Scope |
Nanoporous (np) metals show promise for a variety of applications including actuators, catalysts, and sensors. These applications can benefit from utilising 3D structures rather than 2D films. Electrohydrodynamic redox printing (EHD-RP), an additive manufacturing technique, allows for the fabrication of complex 3D np metal structures. This additional design freedom, however, should not entail a deterioration of materials properties. To determine the influence of different fabrication techniques on the mechanical properties of np-Ag, we compare EHD-RP and magnetron sputtering. Mechanical properties such as Young's modulus and hardness are characterised by nanoindentation. Samples fabricated by EHD-RP exhibit higher hardness values than sputtered films for a similar relative density. To explain these differences we investigate structural and materials factors in these np networks. Parameters examined include twin density, ligament size, relative density, connectivity, and topological factors. To quantify these effects FIB tomographic and TEM analyses are conducted. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Characterization |