Aerogels Protect Against Electromagnetic Interference

Electric motors and electronic devices generate electromagnetic fields that sometimes have to be shielded in order not to affect neighboring electronic components or the transmission of signals. High-frequency electromagnetic fields can only be shielded with conductive shells that are closed on all sides. Often, thin metal sheets or metallized foils are used for this purpose; however, for many applications, such a shield is too heavy or too poorly adaptable to the given geometry. A light, flexible, and durable material with extremely high shielding effectiveness is needed.