POS6-0980
Effect of Magnetic Filler Geometry on Soft Magnetoelastic Generators Performance
When and Where
Nov 30, -0001
00:00 - 00:00
Room 301 (Grand Ballroom)
Presenter(s)
Hyeokju Kwon (Gwangju Institute of Science and Technology)
Co-Author(s)
Abstract
Soft magnetoelastic generators (MEGs) are attracting attention as self-powered force-sensing systems capable of converting mechanical deformation into electrical signals. In soft MEGs, deformation of a magnetized elastomer modulates the magnetic flux, thereby generating electrical signals through electromagnetic induction. However, the effects of magnetic properties, spatial arrangement, and geometry of magnetic fillers on magnetoelasticity are still insufficiently investigated. Here, we develop soft MEGs using cobalt nanorods (CoNRs) as morphology-controlled magnetic fillers. The CoNRs were synthesized through polyol-mediated reduction of cobalt ions, where Ru species were introduced to promote heterogeneous nucleation and enable the formation of uniform nanorods. By adjusting the Ru concentration, the morphology of CoNRs was systematically controlled, allowing investigation of the relationship between filler geometry and magnetoelastic behavior. The CoNRs were embedded in a soft polymer matrix and integrated with a coil-patterned induction layer to evaluate morphology-dependent magnetoelastic properties and MEG performance. The results reveal that the geometry of magnetic fillers strongly influences magnetoelasticity in soft composites, thereby affecting the output characteristics of soft MEGs. This study highlights morphology engineering of magnetic nanofillers as an effective strategy for improving the performance of soft MEGs.
