Preparation and microwave absorption properties of W-Type hexaferrite doped with MnTi |
Paper ID : 1471-UFGNSM-FULL |
Authors: |
Abstract: |
The synthesis of nanocrystalline W-type hexaferrite BaCo MnTiFe O powder by citrate sol-gel method has been investigated. X-ray diffraction (XRD), transmission electron microscopy (TEM), vibrating sample magnetometer and vector network analyzer were used to analyze the structural, magnetic and microwave absorption properties. The ferrite–polymer composites with different ferrite ratios of 50%, 60%, 70% and 80% in polyvinylchloride matrix were prepared. The microwave absorption properties of these composites were investigated in 12–20GHz frequency range. The results showed that the composite with 70% ferrite content has shown a maximum reflection loss of −29 dB at 15.84GHz with the −15 dB bandwidth over the extended frequency range of 14.6–20GHz for an absorber thickness of 1.8mm. It was concluded that the prepared composites could be good candidates for electromagnetic compatibility and other practical applications at high frequency. |
Keywords: |
Nanocrystalline,ferrite, sol-gel,Magnetic properties. |
Status : Paper Accepted (Poster Presentation) |