About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Printed Electronics and Additive Manufacturing of Advanced Functional Materials and Devices—From Processing Concepts to Applications
|
| Presentation Title |
Surface Force-Driven Direct Ink Writing: Unconventional Deposition of Textured Thin Films |
| Author(s) |
Guy Jacob Cordonier, Kostas Sierros |
| On-Site Speaker (Planned) |
Guy Jacob Cordonier |
| Abstract Scope |
Research in traditional Direct Ink Writing (DIW) has focused largely on deposition of yield-stress fluids for layer-by-layer fabrication of 3D structures. There is currently a need to integrate fabrication of nano/micro-scale feature sizes into mesoscale prints. Herein we present an Unconventional DIW (u-DIW) method in which a low-viscosity (can be Newtonian) fluid is deposited onto a substrate using capillary action (not applied pneumatic or mechanical pressure for extrusion) and allowed to spread forming nano-microscale features in the surface. After post-processing, a thin film is formed. Furthermore, fluid properties and deposition parameters can be leveraged to spatially form textures on the thin film surface. Image analysis is used to construct simple models of fluid spreading. Finally, applications of thin films fabricated using this u-DIW method are discussed, including photocatalytic degradation of methylene blue using titania dioxide thin films and filtration of saltwater using polyelectrolyte multilayer membranes. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Thin Films and Interfaces, Characterization |