| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Printed Electronics and Additive Manufacturing: Advanced Functional Materials, Processing Concepts, and Emerging Applications
|
| Presentation Title |
Direct-Write and 3D Printing of Electronic Materials Enabled by Liquid Metals |
| Author(s) |
Michael Dickey |
| On-Site Speaker (Planned) |
Michael Dickey |
| Abstract Scope |
This talk will discuss efforts to take advantage of liquid metals to directly print both metallic and oxide structures at ambient conditions. The metal is a gallium-based metal alloy that is a low-viscosity liquid at room temperature with low toxicity and negligible vapor pressure. Despite the large surface tension of the metal, it can be printed into non-spherical shapes due to the presence of an ultra-thin surface oxide skin. The ability to directly print liquid metal alloys into 3D structures enables soft, self-healing, and ultra-stretchable conductors. We recently discovered a way to separate the oxide from the liquid using fluid instabilities. Doing so enables direct-write printing of very thin (~3 nm) oxides without the need for vacuum processing. Surprisingly, the oxide is conductive. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Polymers, Thin Films and Interfaces |