| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Engineering Hydrophobic Stainless Steel Nanocomposites |
| Author(s) |
Troy Ansell, Michael O'Donnell, Justin Budan, John McGuire, Prajna Jalagam |
| On-Site Speaker (Planned) |
Troy Ansell |
| Abstract Scope |
316L stainless steel powder was milled with either carbon nanotubes (CNT) or graphene nanoplatelets (GNP) via high energy ball milling. The composite powders were then printed in simple square pieces or with a pillared surface geometry by selective laser melting. Contact angle measurements with the printed surface of both CNT and GNP composite square pieces revealed increasingly hydrophobic behavior. Low nanoparticle loading exhibited hydrophilic behavior but when CNTs exceeded 3 vol% and GNPs exceeded 2 vol%, contact angles of greater than 90 deg, i.e., hydrophobicity, was measured. When a water droplets were deposited on pillared samples, a wicking effect was observed where the surface would support a water droplet for up to tens of minutes before dropping to the substrate. Trends indicate that further increasing CNT concentration, adjusting laser energy density, and changing model specifications could lead to greater hydrophobic effects. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |