Abstract
Sonochemically assisted co-precipitation has been used to prepare nano-sized Ni–Cu–Zn-ferrite powders. A suspension of constituent hydroxides was ultrasonically irradiated for various times at different temperatures with high intensity ultrasound radiation using a direct immersion titanium horn. Structural and magnetic properties were investigated using X-diffraction (XRD), FT-IR spectroscopy, transmission electron microscopy (TEM), Nitrogen adsorption at 77K (BET) and Vibrating sample magnetometer (VSM). Preliminary experimental results relative to optimal parameters showed that reaction time t=2h, temperature θ=90°C and dissipated Power Pdiss=46.27W. At these conditions, this work shows the formation of nanocrystalline single-phase structure with particle size 10–25nm. Also, ours magnetic measurements proved that the sonochemistry method has a great influence on enhancing the magnetic properties of the ferrite.
•Coprecipitation experiments were carried out with ultrasound.•The spinel ferrite NiCuZn was perfectly synthesized by ultrasound.•The saturation magnetization and crystals size are found to be correlated as the dissipated power was varied.