Cobalt ferrite nanoparticles of different stoichiometries synthesized by a sol–gel autocombustion method were used as starting material to obtain high-moment Fe50Co50 and Fe66Co34 metal topochemical hydrogen reduction. Structural magnetic investigations confirmed the formation FeCo with crystallite sizes about 30 nm magnetization at 0.5 T ~265 Am2/kg (0 K), which was larger than expected bulk v...

The magnetic properties of cobalt ferrite-silica nanocomposites with different concentrations (15, 30, and 50 wt %) and sizes (7, 16, and 28 nm) of ferrite particles have been studied by static magnetization measurements and Mossbauer spectroscopy. The results indicate a superparamagnetic behavior of the nanoparticles, with weak interactions slightly increasing with the cobalt ferrite content a...

Composite material based on Fe3Si micro-particles and Mn-Zn nano-ferrite was prepared using powder metallurgy technology. The sol-gel followed by autocombustion process was used for synthesis of Mn0.8Zn0.2Fe2O4 ferrite. 3 wt.% of mechanically milled ferrite was mixed with Fe3Si powder alloy. Mixed micro-nano powder system was homogenized by the Resonant Acoustic Mixing using ResodynLabRAM Mixer...

Mn doped ZnO nanowires have been synthesized using a simple autocombustion method. The as-synthesized Mn doped ZnO nanowires were characterized by X-ray diffraction and transmission electron microscopy. An increase in the hexagonal lattice parameters of ZnO is observed on increasing the Mn concentration. Optical absorption studies show an increment in the band gap with increasing Mn content, an...

The nanocrystalline Ni0.7Cu0.3AlxFe2-xO4 (x=0.00: 0.02: 0.10) is prepared through the sol-gel autocombustion route.Both XRD and Rietveld confirm single-phase cubic spinel structure of investigated materials.Other structural parameters refined by refinement analysis are corroborated to formation NPs.Leveraging a vibrating sample magnetometer (VSM) consequence Al3+ substitution on magnetic studie...

The zinc (Zn) doped bismuth ferrite (BiFeO3) have been successfully synthesized through the sol-gel autocombustion method as a microwave absorbent material composite process with silicone rubber. characterizations of nanoparticles was done using X-ray diffraction (XRD), Fourier transform infrared (FTIR), vibration sample magnetometer (VSM), and vector network analyzer (VNA). Through XRD test, n...