About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Presentation Title |
High Temperature 3D Printing of Polyamide Magnetic Composites |
Author(s) |
Pratik U. Karkhanis, Oluwasola K. Arigbabowo, Wilhelmus J. Geerts , Jitendra S. Tate |
On-Site Speaker (Planned) |
Pratik U. Karkhanis |
Abstract Scope |
Bonded magnetic composites (BMC) offer greater feasibility compared to sintered magnets due to their low density, resistance to corrosion, and suitability for additive manufacturing processes. On a 3D printer, manufacturing BMC using polymers like polyether ether ketone (PEEK) and polyamide requires printing at higher temperatures, which presents challenges such as uneven bed adhesion and the potential for damaging printer components. Our study focuses on modifying an off-the-shelf desktop 3D printer through the incorporation of a liquid nozzle cooling system and an external bed heating lamp unit for high-temperature fused filament fabrication applications. Composite filaments are produced using the twin screw extrusion technique, employing polyamide 4.6 as the binder matrix and Strontium ferrite powder as a filler. This combination yields robust magnetic properties. Magnetic properties assessed using a vibrating sample magnetometer demonstrate an increase in remanence (Mr), indicating the potential utility of BMC as permanent magnets.
This work was supported in part by NSF through DMR-MRI Grant under award 2216440 and in part by a DoD instrumentation grant (78810-W911NF-21-1-0253). The authors are thankful to the staff of Texas State University's Analysis Research Service Center (ARSC) and Advanced Composites Lab (ACL). |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |