Development of Electromagnetic Interference Materials from Metallurgical Wastes

Abstract

In view of developing a sustainable metallurgical production, the potential of its slag and/or dusts as a secondary resource must be considered to avoid landfilling. Many products have been innovated such as cement, concrete, ceramics tiles, land reclaim, etc. High iron content industrial solid wastes from metallurgical process may be utilized in the making of electromagnetic shielding and absorbing materials due to the metal droplets and ferrite it contains. This article provides a proof-of-principle of a new high-value-added application for the high iron content industrial solid wastes as an admixture for enhancing electromagnetic interference (EMI) shielding with a potential for future improvement. These special materials are particularly needed for applications in underground vaults, electric power devices, telecommunication, anti-spying, etc.