Experimental Study of Shielding Composite Materials for Protection of Computer Systems

This paper studies the electromagnetic shielding properties of various composite materials with potential to be used in shielding computer systems. As data protection becomes an increasingly important issue, shielding computer systems that carry critical information is one of the methods by which this information can be protected. Therefore, in this paper were studied composite shielding materials containing two types of ferromagnetic powder, the first category of material contains iron-silicon particles and the second category contains Aluminum-Nickel-Cobalt particles. In both categories materials containing particles with different sizes and in different concentrations were chosen. The measurements were performed using a shielded enclosure made of galvanized steel sheet on which the material is fixed.