About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Ceramic-Based Materials: Process Development, Materials, Process Optimization and Applications
|
| Presentation Title |
Towards Microwave Volumetric Additive Manufacturing for Ceramics: Beamforming Experiments |
| Author(s) |
Saptarshi Mukherjee, Ethan Rosenberg, Johanna Vandenbrande, Johanna Schwartz, Emeraldo Baluyot, Maxim Shusteff, James Kelly, Joseph W. Tringe, Corey DeChant, Casey T. Icenhour, Donna P. Guillen, Nelson Bell, Kevin Srtrong |
| On-Site Speaker (Planned) |
Saptarshi Mukherjee |
| Abstract Scope |
Advanced manufacturing methods for ceramics rely on a layer-by-layer construction that are time consuming and costly. Recent development of an optical volumetric additive manufacturing (VAM) technology has enabled rapid 3D printing in a singular step. However, optical VAM is limited to transparent photo resins. Here we propose to develop a fast, scalable VAM system utilizing microwave radiation. The concept relies on developing a microwave antenna array coupled to a beamforming algorithm to superimpose multiple microwave beams and deliver localized energy to arbitrary 3-D volumes. While stereolithography techniques require large binder volumes (>50 vol.%) that can lead to sub-surface voids and long processing times, we design microwave absorptive polymers that can be used in low volume fractions to control microwave energy and achieve rapid, focused green body curing. We focus our discussion on an experimental beamforming system using an antenna array that demonstrate feasibility for localized printing of opaque ceramic materials. |