In our investigation, we synthesized hexaferrites with X-type samarium-cadmium co-substitution (Ba2-xSmxCo2CdyFe28-yO46) through a straightforward heat treatment at 1340 °C. Characterization via FTIR, XRD, SEM, VSM, Mössbauer, and low-frequency dielectric measurements revealed a blend of the X phase and hematite in the samples.
Magnetic properties showed variations in saturation magnetization (MS) from 67.01 Am2/kg to 50.43 Am2/kg and coercivity (Hc) from 2.95 kA/m to 6.17 kA/m. Notably, the pure sample exhibited high MS (67.01 Am2/kg), and the composition with x = 0.06, y = 0.3 displayed low Hc (2.95 kA/m), indicating a multi-domain nature.
Hysteresis loops suggested the samples as magnetically soft materials, and Mössbauer spectra revealed doublets in selected samples. The low coercivity, retentivity, and loss tangent in Sm–Cd substituted samples suggest potential applications in electromagnets, transformer cores, electric motors, and as candidates for lossless low-frequency applications.
DOI: https://doi.org/10.1016/j.ceramint.2022.08.244
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