Effect of MWCNTs content on the magnetic and wave absorbing properties of ferrite-MWCNTs composites

SrFe12O19-MWCNTs composites with different MWCNTs content were synthesized by sol-gel method. The results of X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM) analyses demonstrated that the SrFe12O19 nanoparticles were immobilized on the external surfaces of the CNTs. Vibration sample magnetometer (VSM) and Network vector analyzer measurements indicated that 6 wt.% SrFe12O19-MWCNTs composites possessed the best magnetic and wave absorbing properties.