Magnetic and microwave absorptive properties of electrophoretically deposited nano-CoFe2O4 as a 3D structure on carbon fibers

Cobalt ferrite nanoparticles were successfully deposited on carbon fibers as a 3D structure using electrophoretic method to study magnetic and microwave absorption properties. Three well stabilized suspensions from cobalt ferrite nanoparticles were prepared in acetone, ethanol and acetone-ethanol media: and iodine was used as a stabilizing agent. Constant voltage and time were taken into account to investigate their influence on coating morphology and thereafter microwave absorption property. Field-Emission Scanning Electron Microscopy, Differential Thermal Analysis and X-ray Diffractometer were employed to study morphology, thermal behavior and structure of powder, respectively. To investigate magnetic and reflection loss properties, Vibrating Sample Magnetometer and Vector Network Analyzer were used. Particle size distribution and zeta potential was obtained by Dynamic Light Scattering device. It was observed that by optimizing voltage amount and time to 25 V and 6 min, respectively; uniformity of coating was improved and this led to the highest attenuation of −10.25 dB in vicinity of 8–12 GHz.