Preparation and characterization chemistry of nano-crystalline Ni-Cu-Zn ferrite

Abstract

In submitted research; nanocrystalline powders having elements Ni 0.5Cu0.25Zn0.25Fe2-xInxO4 with varied amounts of indium (x = 0.0, 0.1, 0.2, 0.3 and 0.4) were grown-up by modified citrate to nitrate alchemy. The realism of single phase cubic spinel creation of the synthesized ferrite samples was studied by the DTA-TGA, XRD, SEM, EDX, FT-IR, VSM and dielectric measurements. SEM was applied to inspect the morphological variations and EDX was used to determine the compositional mass ratios. The studies on the dielectric constant (ε′), dielectric loss (ε″), loss tangent (tan δ), ac conductivity (σac), resistive and reactive parts of the impedance analysis (Z' and Z") at room temperature were also carried out. The saturation magnetizations (Ms) were determined using the vibrating sample magnetometer (VSM). Ms. decreased with the increase In 3+ doping content, as Fe3+ of 5μB ions are replaced by In3+ of 0 μB ions. © 2012 Elsevier B.V. All rights reserved.