About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing: Materials Design and Alloy Development IV: Rapid Development
|
Presentation Title |
Versatile Additive Manufacturing of Metals and Alloys via Hydrogel Infusion |
Author(s) |
Max Saccone, Daryl Yee, Rebecca Gallivan, Kai Narita, Julia R. Greer |
On-Site Speaker (Planned) |
Max Saccone |
Abstract Scope |
We report a streamlined technique for the additive manufacturing (AM) of a variety of metals and alloys. Hydrogels are formed via vat polymerization, then infused with appropriate metal precursors. Calcination and reduction convert the hydrogel into the target metal or alloy. Unlike previous vat polymerization strategies which incorporate target materials or precursors into the resin, our method does not require re-optimization of resins and curing parameters when the target material is changed and therefore enables quick iteration and compositional tuning. As proof of concept, we fabricated octet lattice architectures with ~50 µm feature size from several materials including copper, nickel, silver, cupronickel alloys, copper-silver alloys, and tungsten. We characterized these materials to show the unique microstructures enabled by our technique and demonstrate the link to mechanical properties measured by nanoindentation. This work represents a powerful new tool for the rapid and facile development of AM metals and alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Copper / Nickel / Cobalt, Polymers |