Abstract
The most recent techniques for enhancing microwave absorbance applications employing composites based on spinel family modified polymers (polyaniline) are covered in this article. Sol–gel synthesis is used to generate the conductive polymer, which closely combines with strontium-based ferrites (SrLa0.04Fe1.96O4/PANI). X-ray diffraction (XRD) study unequivocally confirmed the spinel structure and phase formation of the ferrite nanoparticles. With an estimated crystallite size of between 23 and 72 nm, XRD examination proved both phases were present in composites. Dielectric parameters (i.e., constant and loss) show a decreasing trend with the mixing of ferrite/PANI composites. As the value of frequency rises, the sudden fall in dielectric curves occurs and remains the same at higher frequencies. The VSM analysis showed that there were magnetic nanoparticles and that the polyaniline matrix was ferromagnetic. The nanoparticles in the PANI matrix stop the mechanism for conduction from working. This makes the activation energy and resistivity go up. Because FP4 is a ferromagnetic material, these ferrite/PANI alloys may be a good choice for absorbing microwaves.
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23 January 2024
A Correction to this paper has been published: https://doi.org/10.1007/s41779-024-00993-0
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Zeshan, M., Alharbi, F.F., Sherif, ES.M. et al. Study of SrLa0.04Fe1.96O4/polyaniline composites for improving microwave absorption. J Aust Ceram Soc 60, 89–101 (2024). https://doi.org/10.1007/s41779-023-00955-y
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DOI: https://doi.org/10.1007/s41779-023-00955-y