| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Alternative Processes (Beyond the Beam)
|
| Presentation Title |
Beyond the Powder-bed: Fabricating Microscale Three-dimensional Metallic Structures Without Support Using Nanoparticle 3D Printing |
| Author(s) |
Mohammad Sadeq Saleh, Rahul Panat |
| On-Site Speaker (Planned) |
Rahul Panat |
| Abstract Scope |
Three-dimensional microscale metallic structures are needed in several applications such as sensing, bioelectronics, and energy storage. The established additive manufacturing methods for can fabricate structures larger than about a millimeter in feature size. In this research, we develop an aerosol-jet based nanoprinting method that can fabricate complex 3D structures without any support materials. The process is based upon dynamics of aerosol droplet condensation and evaporation. A theoretical model predicting the structure formation is developed and verified via experiments. The printing process is followed by sintering of the nanoparticles that creates near-fully dense truss segments of the structures. Highly intricate 3-D micro-lattices, pillars, and spirals are fabricated. The mechanical properties of the structures are measured. It is observed that the response of the structure to mechanical deformation can be modulated by varying the sintering conditions. Various applications of the structures made by this method are discussed. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |