About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
High-power Microwave Irradiation for Localized Curing of Opaque Polymer Composites |
Author(s) |
Saptarshi Mukherjee, Johanna Jesse Schwartz, Emer Baluyot, Joseph W. Tringe, Maxim Shusteff |
On-Site Speaker (Planned) |
Johanna Jesse Schwartz |
Abstract Scope |
The recent development of light-based volumetric additive manufacturing (VAM) technology has enabled rapid 3-D printing of optically transparent resins. However, there is growing interest in employing other materials that extend the design space of VAM. Here we leverage focused microwave radiation to expand VAM to a broader family of resins, including those which are opaque. We use an X-band microwave applicator array coupled to a beam-steering algorithm to focus microwave energy into resins. We performed numerical simulations to demonstrate microwave energy localization, that are supported with experimental results on resins loaded with different opaque additives. This work culminated in two prototype AM systems, based on VAM and direct-ink-writing, capable of making large opaque structures.
This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory (LLNL) under Contract DE-AC52-07NA27344, supported by LLNL-LDRD Program under Project No. 22-FS-030. This is LLNL Contribution Number LLNL-ABS-834044. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |