Synthesis of Mg0.48Cu0.12Zn0.40Fe2O4 ferrite and its aptness for multilayer chip component application

Abstract Here we reported the synthesis of MgCuZn ferrite (Mg 0.48 Cu 0.12 Zn 0.40 Fe 2 O 4 ) by ceramic and self-sustaining auto-combustion (sucrose) methods. Required oxides in powder form were processed (hand mill=3 h, pre-sinter=600 °C for 180 min and final sinter=910 °C for 9 h) to obtain the ferrite sample through the ceramic methods. Whereas, aqueous metal nitrates along with the sucrose as fuel were processed (at 200 °C, final sinter=600 °C for 180 min) to obtain ferrite product via the auto-combustion route. As-synthesized ferrite samples were then subjected to crystallographic, structural and magnetic investigations by techniques viz. X-ray diffraction, IR spectroscopy and B–H measurements. Purity and phase formation were confirmed by XRD examinations. Cation redistribution was also suggested by XRD analyses which supplement the variation of magnetic properties. IR absorption bands were found to be in the expected high frequency range (574.95 cm −1 and 582.39 cm −1 ) and low frequency range (≈431 cm −1 ) which fortifies the spinel phase formation. Boost in magnetic performance of sucrose methods' yield was observed owing to reduced porosity and increased surface area. Thus, MgCuZn ferrite prepared via the self-sustaining auto-combustion route has superior magnetic properties at relatively low sintering temperature and can be employed in multi-layer chip application readily.