Structural, magnetic and microwave absorption properties of SrFe12-2x(Mn0.5Cd0.5Zr)xO19 ferrite

In this research, the M-type strontium hexaferrite nanoparticles, SrFe12-2x(Mn0.5Cd0.5Zr)(x)O-19, (x=0.0 - 1.6), have been synthesized by the coprecipitation method. X-ray diffraction, a field emission scanning electron microscope, a vector network analyzer and a vibrating sample magnetometer were used to characterize their structures, electromagnetic and microwave absorption properties of samples. The results indicated the formation of hexaferrite structure for all samples. The sample with x=1.4 showed a minimum reflection loss of -52 dB at 14.5 GHz with reflection loss less than -20 dB over the extended frequency range of 13.6-16.5 GHz, Finally SrFe9.2(Mn0.5Cd0.5Zr)(14)O-19 could be considered as a good candidate for thin microwave absorbers in the gigahertz range. (C) 2014 Elsevier B.V. All rights reserved,