Characterizations of magnetic transition behavior and electromagnetic properties of Co-Ti co-substituted SrM-based hexaferrites SrCoxTixFe12-2xO19 compounds

M-type strontium hexaferrites is a vital functional material , Co-Ti co-substitution is one of the most effective ways to regulate its performance to meet the desired requirements exactly. Herein, we report the synthesis, microstructure, permeability, magneto-thermal and magnetic properties of Co-Ti substituted SrM-based hexaferrites . FT-IR spectra and XPS survey confirm that hexagonal crystal structure is formed completely, which are correlate closely with the results of Rietveld refinement of XRD patterns . M ( T ) curves illustrate that T p decreases from 323 K to 276 K induced by the specific substitution. M ( H ) branches show M s increases slightly while H c decreases rapidly with increasing x , and the sample performs as soft magnetic properties when x  ≥ 1.00. In addition, besides the imaginary permeability ( μ '') can be reduced obviously by substituting cobalt-titanium, the characteristics of low core loss ( P cv ) and high quality factor ( Q ) for the sample are performed thoroughly, indicating the excellent performance in the field of multilayer inductors.