absorbing band-widths are continuously increasing. Electromagnetic
absorbing materials (EMAMs) may be classified as magnetic
or dielectric. Actually, these materials have attracted a great
attention due to their improved microwave absorption properties,
which are relevant to multiform electromagnetic losses based on
magnetic and dielectric loss [5]. Dielectric and magnetic EMAMs
interact in different ways with the electromagnetic radiation but
the final result of these interactions is the same in the sense that
the energy of the incident wave is transformed into heat [6].
Usually, these materials are obtained by the dispersion of one or
more types of absorbing fillers in a matrix. They can be produced
in different forms such as paints, sheets, and thin films as single,
double or multi-layer [7]. In each application, it is necessary to
control precisely the physical properties of the material in terms
of permittivity, magnetic permeability and conductivity and to
know their variations with the frequency [8]. This can be achieved
by the use of suitable fillers such as aluminum, carbon, graphite,
aluminum nitrides, nickel, zinc sulfide, titanium dioxide, silver
particles or barium titanate [9–12]. But the mechanical properties
of the materials are deteriorated with the rate of loading and the
weight of the material becomes incompatible with the aeronautical