The document discusses composite materials called magnetic flux controllers or magnetodielectrics (MDM) that can be used to control magnetic fields in electromagnetic processing applications. MDM materials like Fluxtrol A, Fluxtrol 50, and Ferrotron 559H are softer and more linear than laminations or ferrites. They can improve coil efficiency, reduce power usage, and provide field shaping and shielding. MDMs are easier to machine and can be used in complex 3D geometries compared to laminations. Specific applications discussed where MDMs provide benefits include induction melting furnaces, cold crucible melting, coating removal, and crystal growth.