Enhanced Magnetization in Mg–Zn Ferrite Nanoparticles, Prepared by Mechanochemical Processing

Abstract

One-step mechanochemical processing is one of the most useful and effective methods to produce nanoparticles. Prepared materials by this method show novel properties. In this work, Mg-substituted Zn ferrite (Mg x Zn 1−x Fe 2 O 4 ; x = 0.0, 0.2, 0.4, 0.6) nanoparticles were prepared by one-step mechanochemical processing for the first time. In addition, bulk samples with the same compositions were prepared by conventional ceramic method, which served as reference samples. The samples were characterized by the X-ray diffraction and field emission electron microscopy. By a comparison between I (220)/I (222) intensity ratios in X-ray diffraction patterns of the samples prepared by one-step mechanochemical processing and those of the bulk samples, changes in the cation distribution of the samples prepared by one-step mechanochemical processing were followed. Lattice parameters and magnetic properties of the all samples were measured, and their behaviors were discussed.

Mg‐Zn Ferrite Nanoparticles: A Brief Review on Synthesis, Characterizations, and Applications

“…Sizes of the nanoferrites were obtained in the range of 40-70 nm. Mozaffari et al [190] observed the field-emission SEM (FESEM) micrograph of Mg x Zn 1-x Fe 2 O 4 and detected particles sizes of the samples in the range of 50-100 nm and also that each particle was composed of many crystallites. Bassami's [191] TEM image of Mg 0.8 Zn 0.2-x Co x Fe 2 O 4 (0 x 0.2) revealed agglomerated round-shaped nanoparticles.…”