Effect of glass on magnetic properties of microwave-processed MgCuZn nano ferrites

Lately ferrites find applications as multilayer chip inductor (MLCI) cores. During the MLCI fabrication, the core has to be sintered with an internal electrode like silver. The sintering temperature of ferrites can be reduced in many ways. In the present study, two techniques are simultaneously used for the purpose vice doping of glass and choosing to sinter using microwaves. Undoped and lead borosilicate glass-doped MgCuZn ferrites with generic formula Mg0.5Cu x Zn0.5-x Fe2O4 at x = 0.05-0.3 were synthesized by conventional solid state reaction route and were characterized for structural, surface, and magnetic properties. From X-ray diffraction studies, it was found that all the undoped and glass-doped samples were single-phase spinel structure. Glass-doped MgCuZn ferrite samples exhibited lower permeability than that of undoped MgCuZn ferrites. However, a flat frequency response was observed in the glass-doped Mg0.5CuxZn0.5-xFe2O4 samples at x = 0.1 and 0.2.The authors are thankful to Sri Krishnadevaraya University, Anantapur, for providing the experimental facilities. This work was supported by the financial assistance provided by the Defence Research and Development Organization (DRDO), New Delhi, India, by the grant No ERIP/ER/0303437/M/01/761. The corresponding author conveys her special thanks to Prof. S. Kaleemulla for final refinement of the manuscript.Scopu