Magnetic\nElastomers for Stretchable Inductors

Abstract

In this work, silicone loaded with\nmagnetic particles is investigated for creating a composite with higher\npermeability while still maintaining stretchability. Magnetic and\nmechanical properties are first characterized for composites based\non both spherical and platelet particle geometries. The first magnetic-core\nstretchable inductors are then demonstrated using the resulting ferroelastomer.\nSolenoid inductors based on liquid metal galinstan are then demonstrated\naround a ferroelastomeric core and shown to survive uniaxial strains\nup to 100%. Soft elastomers loaded with magnetic particles were found\nto increase the core permeability and inductance density of stretchable\ninductors by nearly 200%.