| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
3D-AJP: Fabrication of Advanced Microarchitected Multi-Material Ceramic Structures via Binder-Free and Auxiliary-Free Aerosol Jet 3D Nanoprinting |
| Author(s) |
Chunshan Hu, Sanjida Jahan, Bin Yuan, Caitlyn Santiago, Rahul Panat |
| On-Site Speaker (Planned) |
Chunshan Hu |
| Abstract Scope |
Ceramic manufacturing faces challenges due to ceramics' low toughness and high hardness. Additive Manufacturing (AM) techniques have been explored to create complex structures but struggle with microscale feature size and dimensional control. In this research we introduce 3D-AJP, a novel approach for fabricating intricate 3D ceramic structures like micro pillars, spirals, and lattices with minimal shrinkage (2-6%) and no auxiliary support. Using near-binder-free nanoparticle ink in Aerosol Jet Printing, we achieve precise features down to 20 µm and aspect ratios up to 30:1 with feature sizes span over 5 orders-of-magnitude in length scale. Bi-material 3D structures ZnO/ZrO2, ZnO/TiO2, and TiO2/ZrO2 also illustrate generality of this approach. Several application demonstrations are shown, including the superior photocatalytic properties of these structures compared to bulk ceramics for water purification via the degradation of the organic pollutant methylene orange. This technique promises advances in filtration, sensing, microelectronics packaging, catalysis, thermal insulation, and tissue regeneration. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Ceramics, Nanotechnology |