Researchers developed X-type samarium-cadmium co-substituted hexaferrite, with composition Ba2xSmxCo2CdyFe28-yO46 (0.00 ≤ x ≤ 0.08 and 0 ≤ y ≤ 0.4). The material was prepared by heat treatment technique at 1340°C and was characterized using FTIR, XRD, SEM, VSM, Mössbauer and low-frequency dielectric measurements. The XRD of the prepared samples showed the formation of X as a major phase along with hematite. The MS value varied from 67.01 Am2/kg to 50.43 Am2/kg; whereas the Hc value changed from 2.95 kA/m to 6.17 kA/m. A high value of MS (67.01 Am2/kg) was observed in the pure sample, and a very low value of Hc (2.95 kA/m) was observed for x = 0.06, y = 0.3 compositions. Hysteresis loops of all samples are narrow and confirmed that formed samples were magnetically soft. Mössbauer spectra of the three samples (S1, S2 and S3) show the existence of doublets. Significantly low values of coercivity, retentivity and loss tangent in Sm-Cd substituted samples signified those prepared materials can be used to design electromagnets, transformer cores, electric motors and maybe a potential candidate for losses low-frequency applications. The research has shown that X-type samarium-cadmium co-substituted hexaferrite is a promising new material for a variety of applications, including electromagnets, transformer cores, electric motors and lossless low-frequency applications.
DOI: Article Influence of Sm and Cd co-substitutions on physical, magneti...
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