Magnetic Microwire Materials Route Magnetic Flux in Screens and Cores of Electrical Machines

Magnetic microwire (MW) materials, with microwires embedded in a host polymer, can be used to guide the magnetic flux along the wires. Due to the microscale diameter of the individual wires, the eddy current losses are very low, which makes MW materials an attractive alternative for the design of conducting screens and cores of electrical machines. This paper demonstrates the benefits of such designs for the case of magnetic shielding. Finite element simulations demonstrate significant advantages of MW materials in shielding applications.