The study investigated X-type samarium-cadmium co-substituted hexaferrite compounds, namely Ba2-xSmxCo2CdyFe28-yO46, where x varied from 0.00 to 0.08 and y varied from 0 to 0.4. These composites were created using an effortless heat treatment procedure at 1340 °C. The samples were analyzed by various characterization techniques including FTIR, XRD, SEM, VSM, Mössbauer and low frequency dielectric measurements. Together with hematite, the XRD study indicated the formation of the desired hexaferrite phase (X). Magnetic saturation (MS) ranged from 67.01 Am2/kg to 50.43 Am2/kg and coercivity (Hc) ranged from 2.95 kA/m to 6.17 kA/m. In particular, the pure sample had a high MS value of 67.01 Am2/kg, while the mixture with x = 0.06, y = 0.3 had a fairly low Hc value of 2.95 kA/m. However, the ratio of residual magnetization to saturation magnetization (Mr/Ms 0.5) suggested that the produced hexaferrites were multi-domain. All samples had narrow hysteresis loops, confirming their classification as magnetically soft materials. Analysis of Mössbauer spectra of selected samples (S1, S3 and S5) confirmed the existence of doublets. The substituted Sm-Cd samples had much lower values of compressibility, retention and loss tangent, suggesting that they can be used to create electromagnets, transformer cores, electric motors and as viable candidates for lossless low frequency applications.
DOI :
Article Influence of Sm and Cd co-substitutions on physical, magneti...
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The study on Ba2-xSmxCo2CdyFe28-yO46 hexaferrite compounds reveals promising magnetic properties, such as a range of magnetic saturation and coercivity values. The substitution of Sm-Cd suggests potential applications in electromagnets, transformer cores, and electric motors due to low compressibility and loss tangent values. The Mössbauer spectra analysis and various characterization techniques contribute to understanding the material's suitability for specific applications.
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