Effect of Sintering Temperature on Structural and Magnetic Properties of Ni0.6Zn0.4Fe2O4 Ferrite: Synthesized from Nanocrystalline Powders

TL;DR

This study investigates how different sintering temperatures affect the structural and magnetic properties of Ni0.6Zn0.4Fe2O4 ferrites, revealing optimal conditions for potential transformer and inductor applications.

Contribution

It provides new insights into the relationship between sintering temperature and magnetic properties of NiZn ferrites synthesized from nanocrystalline powders.

Findings

Sintering at 1300°C yields high saturation magnetization of 71.94 emu/gm.

Low coercive field of 1.2 Oe suggests suitability for transformer cores.

Single-phase cubic spinel structure confirmed by XRD.

Abstract

The effect of sintering temperatures (Ts) on the structural and magnetic properties of Ni0.6Zn0.4Fe2O4 (NZFO) ferrites synthesized by conventional double sintering method has been reported. The samples are sintered at 1200, 1250 and 1300 {\deg}C. The X-ray diffraction (XRD) analysis reveals the formation of a single phase cubic spinel structure of the sample. The magnetic parameters such as saturation magnetization, Ms; coercive field, Hc; remanent magnetization, Mr and Bohr magneton, {\mu}B are determined and well compared with reported values. The obtained values are found to be 71.94 emu/gm and 1.2 Oe for Ms and Hc, respectively at Ts=1300 oC. Curie temperature (Tc) at various Ts has also been calculated. It is noteworthy to note that the sample with a very low Hc could be used in transformer core and inductor applications.