| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
Elucidating the structure and energy absorption of holographically produced 3D nanoarchitected materials |
| Author(s) |
Matias Kagias, Thomas T. Tran, Ruoqi Dang, Zhi Li, Nicholas W. Phillips, Julia R. Greer |
| On-Site Speaker (Planned) |
Matias Kagias |
| Abstract Scope |
One the key challenges for wider adoption of additively manufactured architected materials with sub-micrometer features is reliable and scalable production. Recent progress in 3D nanofabrication, leveraging holographic lithography augmented by optical metasurfaces, has enabled centimeter scale nanoarchitected polymer sheets with specific energy absorption capacity comparable to state-of-the-art impact mitigating materials such as Kevlar. For further adoption and optimization, it is integral to establish and understand feature control fidelity, defect tolerance and their effects on the macroscopic mechanical properties of holographically produced nanoarchitected materials. Here, we report on a multimodal study combining non-destructive high resolution X-ray nano-tomography, subsequent in-situ SEM mechanical testing, and FEA analysis through digital twins of epoxy based lattices with features in the 500 nm regime. This combined approach was critical in establishing the link between the observed morphological features and defects with the measured energy absorption of holographically produced 3D nanoarchitected materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Polymers, Characterization |