The magnetoactive electret

摘要: A magnet which adheres to every surface, not only those of ferromagnetic materials, has hitherto been the domain science fiction. Now for first time such a novel device exists. The fusion permanently magnetized magnetoactive polymer containing hard magnetic particles and an electret enhanced with ferroelectric resulted in development new smart device—the electret. Magnetoactive electrets can be made exhibit usual properties permanent magnetism together electrostatic electrets. This results simultaneous magnetoadhesion electroadhesion forces from same elastomeric element. biasing field, needed avoid discontinuities concerned transition through zero point operating curves, is normally provided by means either or electric field. technology provides both bias options single device.