Mg 0.25 Cu 0.25 Zn 0.5 Fe 2 O 4 is synthesized by sol gel auto combustion technique. The obtained ferrite powder is finally sintered in a microwave furnace at 850°C. Multilayer chip inductor (MLCI) of two layers is prepared by screen printing technique. The sintered ferrite is characterized by X-ray diffraction. The frequency response of dielectric constant is studied in the frequency range of 100Hz to 5MHz. Dielectric polarization is discussed in the light of Maxwell-Wagner interfacial polarization. The prepared MLCI is studied for stress sensitivity in the range of 0 to 8 MPa. © 2015 AIP Publishing LLC.

Madhuri W

Department of Physics

School of Advanced Sciences

Vellore Campus

Shaik Kaleemulla

B vishwas

N madhusudan rao

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

AIP Conference Proceedings

Journal of Materials Science: Materials in Electronics

High permeability and stress insensitivity of MgCuZn–NiCuZn ferrite composites for microinductor applications

NiCuZn ferrites are widely employed for many electronic applications, but can be replaced by MgCuZn ferrites owing to their superior properties like low magnetostriction, environmental stability, low stress sensitivity and low cost. In view of this, a series of non-stoichiometric MgCuZn ferrites (Mg 0.5-xCuxZn0.5Fe1.9O 4-δ with x = 0.0, 0.05, 0.10, 0.15, 0.20, 0.25) have been successfully synthesized by both conventional and microwave sintering techniques. The non-stoichiometry was intentionally introduced into the ferrites to ensure high resistivity of the samples. X-ray diffraction patterns confirm the single phase spinel structure in both cases. The elemental composition of these ferrites was analysed by energy-dispersive x-ray spectrometry. The samples sintered by the microwave technique were found to be denser than the conventionally sintered samples. The initial permeability of MgCuZn ferrites was studied with an increase in copper concentration from x = 0.0 to 0.25. The temperature variation of the initial permeability of these samples was carried out from 30 °C to 150 °C. The results are discussed in the light of microstructure variations of the conventionally and microwave sintered samples. The phenomena involved in microwave sintering are also discussed. © 2009 IOP Publishing Ltd.

Journal of Physics D: Applied Physics

Comparison of initial permeability of MgCuZn ferrites sintered by both conventional and microwave methods

Materials Chemistry and Physics

Densification, magnetic and dielectric behaviour of Cu-substituted Mg–Zn ferrites

Stress sensitivity of inductance in NiMgCuZn ferrites and development of a stress insensitive ferrite composition for microinductors

Materials Science and Engineering: B

High Mn content NiCuZn ferrite for multiplayer chip inductor application

Stress insensitive multilayer chip inductor with ferrite core

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