The research in the area of electromagnetic wave absorbing materials (EAMs) has been actively pursued for at least five decades. Electro-magnetic wave absorbing materials are specialized to narrow the reflection or increase the absorption properties of the materials of electro-magnetic signals to provide effective shielding capability, which is a core component of passive measurements in combat applications. The electro-magnetic characteristics of high entropy alloys (HEAs) could be optimized by adjusting their surface geometry, microstructure, and composition. This review addresses the role of HEAs core effects in electromagnetic wave shielding effect and its influence by core effects. To bridge the deficit in our understanding of EAMs, a thorough depiction of HEAs deployed as EAMs and their conceivable electromagnetic radiation (EMR) loss pathways are offered. The existing obstacles and envisaged paths for the evolution of future HEAs as EMR absorption materials are also addressed with reference to published literature.
Gowda et al. (Thu,) studied this question.