| Abstract Scope |
We present a multimaterial 3D printing technique for magnetic nanocomposites, magneto active polymers (MAPs) and flexible magnets with sub-mm pixel size, used to prototype magnetic actuators (membranes and artificial muscles) for haptic applications with reduced SWaP-C metrics. State-of-the-art 3D printed sub-mm magnetic materials are limited in performance and fabrication throughput due to the lack of control of magnetic nanostructures (the limiting factor for magnetic properties) and magnetization direction. This work will present significant efforts in advance manufacturing techniques for multimaterial flexible magnetic nanocomposites (nanoparticles of NdFeB, Alnico, Fe, Fe3O4, SmCo, BaFe12O19, or NiMnFe2O4) via digital light processing (DLP). This technology allows us to calibrate polymeric resin (for mechanical properties) and nanoparticle concentrations in the composite to tailor fundamental magnetic properties, such as saturation magnetization, coercivity, magneto mechanical response, and permeability at sub-mm resolution. Electromagnetic, morphological, and mechanical characterization of fabricated materials will be presented. |