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Magnet Assisted Composite Manufacturing: A Flexible New Technique for Achieving High Consolidation Pressure in Vacuum Bag/Lay-Up Processes
Published on: May 17, 2018
Synergistic effect of carbon fabric metastructure and magnetic layers in a composite for electromagnetic radiation
Yevhen Yashchyshyn1, Alexander Zaichenko2, Khrystyna Harhay2
1Institute of Radioelectronics and Multimedia Technology, Warsaw University of Technology, Nowowiejska 15/19, 00-665, Warsaw, Poland.
Abstract:
The widespread use of high-frequency electromagnetic radiation (EMR) in communication, defense, medical, and household technologies raises health and safety concerns, underscoring the demand for efficient shielding and absorption materials. This work presents flexible protective composites based on conductive carbon fabric coated with thin magnetic polymer films. Several multilayer configurations were prepared and characterized, consisting of carbon fabric coated with epoxy polymer layers containing Ni or Fe[Formula: see text]O[Formula: see text] fillers. The shielding performance, primarily governed by the fabric's regular metastructure, exhibits strong polarization dependence in the [Formula: see text] GHz range. The combined interaction of conductive carbon fabric and magneto-responsive polymer layers enhances absorption, induces multiple resonances, and broadens the effective shielding bandwidth, resulting in significantly reduced reflection across a wide spectral range.
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