Abstract
Nanoferrite materials of cobalt-substituted M-type barium were found suitable for defense applications and were prepared via a chemical method. The prepared samples were characterized by different techniques like X-ray diffractometer (XRD), field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy (RS), and vector network analyzer (VNA). Pure single-phase M-type barium ferrite was confirmed by using XRD investigations with an average crystallite size in the range 65–85 nm. An average grain size in the range 250–325 nm was noticed by using FESEM. Strong Me–O bonds were confirmed by vibrational bands at 466 cm−1 and 580 cm−1 and Raman vibrational modes at 329 cm−1 and 676 cm−1. Real, imaginary, and loss tangent parts of permittivity and permeability in the frequency range of 12–18 GHz (Ku band). BaCoFe11O19 materials were found to have a maximum reflection loss of −45 dB making suitable candidate for radar-absorbing material (RAM) in Ku band.
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Thakur, A., Thakur, P., Kumar, D., Sharma, P.B. (2022). Electromagnetic Characterizations of Nanomaterials. In: Thakur, A., Thakur, P., Khurana, S.P. (eds) Synthesis and Applications of Nanoparticles. Springer, Singapore. https://doi.org/10.1007/978-981-16-6819-7_11
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