Microwave sintered magnesium ferrite (MF) nanoparticles are synthesised by hydrothermal technique. X-ray diffraction revealed pure spinel phase but low crystallinity. Synthesised MF is observed to be in nanoscale under scanning electron and transmission electron microscopes. MF is characterised further by Fourier transform infrared and UV-visible spectrometers for vibrational bands and optical band gap information. Electric and magnetic characterizations revealed low conductivity, dielectric loss, magnetic loss and fairly good initial permeability. High coercivity and M-H loop area of MF indicate the hard magnetic nature. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.

Prathap R

Department of Computational Intelligence

School of Computer Science and Engineering

Vellore Campus

Madhuri W

Department of Physics

School of Advanced Sciences

Chandra Babu Naidu K

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

Journal of Superconductivity and Novel Magnetism

Ferrites are magnetic semiconductors realizing an important role in electrical and electronic circuits where electrical and magnetic property coupling is required. Though ferrite materials are known for a long time, there is a large scope in the improvement of their properties (vice sintering and frequency dependence of electrical and magnetic properties) with the current technological trends. Forth coming technology is aimed at miniaturization and smart gadgets, electrical components like inductors and transformers cannot be included in integrated circuits. These components are incorporated into the circuit as surface mount devices whose fabrication involves low temperature co-firing of ceramics and microwave monolithic integrated circuits technologies. These technologies demand low temperature sinter-ability of ferrites. This article presents low temperature microwave sintered Ni–Mg ferrites of general chemical formula Ni1−xMgxFe2O4 (x=0, 0.2, 0.4, 0.5, 0.6, 0.8, 1) for potential applications as transformer core materials. The series of ferrites are characterized using X-ray diffractometer, scanning electron microscopy, Fourier transform infrared and vibrating sample magnetometer for investigating structural, morphological and magnetic properties respectively. The initial permeability is studied with magnesium content, temperature and frequency in the temperature range of 308 K–873 K and 42 Hz–5 MHz. © 2016 Elsevier B.V.

Journal of Magnetism and Magnetic Materials

Microwave processed NiMg ferrite: Studies on structural and magnetic properties

A series of pure stoichiometric and 1 wt% lead borosilicate (PBS) glass added MgCuZn ferrite with the general formula Mg0.5Cu xZn0.5-xFe2O4 with x = 0.05, 0.1, 0.15, 0.2, 0.25 and 0.3 were synthesized by microwave sintering technique. Single phase spinel structure is exhibited by the XRD patterns of these ferrites. DC and AC conductivity were investigated as a function of composition, temperature and frequency. DC conductivities were also estimated using the impedance spectroscopy analysis of Cole-Cole plots. The DC conductivities thus obtained are in good agreement with the experimental results. All the investigated samples exhibited two regions of conductivity one in the low temperature and the second in the high temperature region. It is observed that PBS glass added samples have lower conductivities than pure samples. Due to their lower conductivities and sintering temperatures the 1 wt% PBS glass added samples are suitable for multilayer chip inductor (MLCI) and high definition TV deflection yoke material application. © 2013 Elsevier B.V. All rights reserved.

Materials Science and Engineering B: Solid-State Materials for Advanced Technology

Transport properties of microwave sintered pure and glass added MgCuZn ferrites

Ceramics International

Characterization and magnetic properties of nanocrystalline Mg 1-x Cd x Fe 2 O 4 ( x = 0.0–0.8) ferrites synthesized by glycine-nitrate autocombustion method

Materials Chemistry and Physics

Structural, electrical and magnetic properties of large ionic size Sr2+ ions substituted Mg-Ferrite nanoparticles

Journal of Rare Earths

Effect of Nd 3+ substitution on structural and magnetic properties of Mg–Cd ferrites synthesized by microwave sintering technique

Effect of Microwave Heat Treatment on Hydrothermal Synthesis of Nano-MgFe2O4

Journal	Data powered by TypesetJournal of Superconductivity and Novel Magnetism
Publisher	Data powered by TypesetSpringer Science and Business Media LLC
ISSN	1557-1939
Open Access	0