Complex permittivity and microwave absorption properties of BaTiO3–polyaniline composite

Effects of Sheet Thickness on the Electromagnetic Wave Absorbing Characterization of Li0.375Ni0.375Zn0.25-Ferrite Composite as a Radiation Absorbent Material

“…Consequently, the false echoes will make false images appear on the display. Because false echoes cause navigating hazards, EM wave absorbers should be used to cover ship's structures such as a mast [1][2][3][4][5]. At present, EM wave absorbers fabricated in the form of sheets by mixing polymer with absorbent powder have become the focus of current studies, because of their practical and simple preparation method.…”

Hierarchical electromagnetic absorption in micro-waveguide stuffed with magnetic media for resin-based composites of graphene nanosheets and manganese oxides

“…Numerous works can be attributed to the design of integrating the contribution from electric and magnetic synergistic effect in absorption [1,2,11]. So far, the applied materials in microwave absorbing contain barium titanate [12], cobalt ferrite [13], iron, iron compounds, and other iron/manganese oxides [7,14,15]. The electric conductive components are multi-walled carbon nanotubes [8], carbon black [10], active carbon-carbon fibers [16] and graphene materials [14].…”

Permittivity and Electromagnetic Interference Shielding Investigations of Activated Charcoal Loaded Acrylic Coating Compositions

“…However, metals suffer from problems like poor wear/scratch resistance, corrosion susceptibility, high density, difficult processing, and high cost [1,6,9]. The secondary shielding mechanism is absorption for which shield material should have electrical or magnetic dipoles [9][10][11][12] along-with finite electrical conductivity. For such purpose materials with high dielectric constant like ZnO, SiO 2 , TiO 2 , BaTiO 3 , or high magnetic permeability, for example, carbonyl iron, Ni, Co, or Fe metals, -Fe 2 O 3 , Fe 3 O 4 , and so forth are used [1,13].…”