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Influence of zinc content on some properties of Ni–Zn ferrites

The chemical formula of the samples investigated is Ni 1− y Zn y Fe 2O 4, where y=0.1, 0.3, 0.5. 0.7 and 0.9. The specimens were prepared by the usual ceramic technology and sintered at 1250 °C in static air atmosphere. The influence of Zn content on the densification and microstructure characterist...

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Published in:Ceramics international 2002, Vol.28 (4), p.363-367
Main Author: El-Sayed, A.M.
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Language:English
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description The chemical formula of the samples investigated is Ni 1− y Zn y Fe 2O 4, where y=0.1, 0.3, 0.5. 0.7 and 0.9. The specimens were prepared by the usual ceramic technology and sintered at 1250 °C in static air atmosphere. The influence of Zn content on the densification and microstructure characteristics of specimens was studied. X-ray diffraction and IR absorption spectra were used for analysing the compositions. It was found that the samples have spinel cubic structure and sintered to about 97–98% of the corresponding X-ray density. Exaggerated grain growth with fine pores inside the grains were observed with increasing Zn content. The overall results are discussed in light of the existing understanding of these systems.
doi_str_mv 10.1016/S0272-8842(01)00103-1
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subjects A. Sintering
Applied sciences
B. Microstructure
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Domain effects, magnetization curves, and hysteresis
Electrotechnical and electronic ceramics
Exact sciences and technology
Magnetic properties and materials
Magnetization curves, hysteresis, Barkhausen and related effects
Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects
Materials science
Materials synthesis
materials processing
Methods of materials synthesis and materials processing
Ni–Zn ferrites
Nonmetallic ferromagnetic materials
Physics
Preparation
Studies of specific magnetic materials
Technical ceramics
title Influence of zinc content on some properties of Ni–Zn ferrites
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