Complex permittivity, complex permeability and microwave absorption properties of ferrite-paraffin polymer composites |
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Authors: | Harun Bayrakdar |
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Institution: | Gebze Institute of Technology, Department of Physics, 41400 Gebze/KOCAEL?, Turkey |
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Abstract: | We have investigated the electromagnetic (EM) characteristics of CoxMn1−xFe2O4 spinel ferrite (where x=0.0, 0.5 and 1.0) nanoparticles (NPs)/paraffin nanocomposite material at 8-20 GHz. CoxMn1−xFe2O4 NPs have been synthesized by cetyltrimethylammonium assisted hydrothermal route using NaOH. A variation in complex dielectric permittivity and magnetic permeability at room temperature with frequency in the range 8-20 GHz has been studied. Particles showed phase purity and crystallinity in powder X-ray diffraction (XRD) analysis. At the same time, CoxMn1−xFe2O4 NPs demonstrated a spinel cubic structure from XRD results. A reflection loss of −46.60 dB was found at 10.5 GHz for an absorber thickness of 2 mm. CoxMn1−xFe2O4 may be attractive candidates for EM wave absorption materials. |
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Keywords: | XRD Microwave properties Paraffin CoxMn1&minus xFe2O4 Electromagnetic interference Microwave absorbing |
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