microstructure related to magnetic properties in nickel zinc ferrite


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Preparation and magnetic properties of nano size nickel ...

3/30/2012· Introduction. Nanosized spinel ferrite particles, a kind of soft magnetic materials with structural formula of MFe 2 O 4 (M = divalent metal ion, e.g. Mn, Mg, Zn, Ni, Co, Cu, etc.), are one of the most attracting class of materials due to their interesting and important properties such as low melting point, high specific heating, large expansion coefficient, low saturation magnetic moment and ...

Role of Ruthenium in the Dielectric, Magnetic Properties ...

In this work, Ru-doped nickel ferrites (NiFe2O4) were synthesized by a chemical co-precipitation method. Subsequently, they were annealed at different temperatures. The crystallinity of the samples was evaluated using X-ray diffraction and the morphology of the samples was investigated by scanning electron microscopy and transmission electron microscopy. Dielectric constants and dielectric ...

Heat treatment effects on microstructure and magnetic ...

Heat treatment effects on microstructure and magnetic properties of Mg–Zn ferrite prepared by Conventional ceramic method. Kadhum. J. K. 1, Atheer. I. A. 2. Abstract— Fabrication of Mg1-XZnXFe2O4 (where x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0), samples using a Conventional ceramic method is prepared. Oxides of magnesium, zinc and iron with purity ...

Improving soft magnetic properties of Mn-Zn ferrite by ...

The effects of RE 2 O 3 (RE=Sm, Gd, Ce and Y) doping on the microstructure and magnetic properties of Mn-Zn ferrite have been investigated. The single spinel phase structure can be maintained with the doping amounts up to 0.07 wt.%. A refined grain structure and uniform grain size distribution can be obtained in the optimally doped materials.

Effect of sintering temperature on the microstructure and ...

In this work, an attempt is made to study the effects of sintering temperature on the microstructure and high-frequency (HF) magnetic properties of a nickel zinc ferrite compound of very low ZnO content of Ni 0.467 Zn 0.07 Co 0.015 Fe 0.511 O 4 composition. Samples were prepared by a conventional ceramic route and sintered for 2 h at 1150, 1200, 1250, and 1300 °C.

Nickel-zinc ferrite/permalloy (Ni0.5Zn0.5Fe2O4/Ni-Fe) …

The electro-infiltration process comprises two major steps—nanoparticle consolidation and electroplating—to form a magnetic nanocomposite microstructure. As shown in Fig. 1, magnetic nanoparticles are first consolidated into an electroplating mold on silicon substrate, and then a magnetic metal matrix is electroplated through the void spaces between the particles.

Ferroelectric and magnetic properties of the PMN-PT …

5/1/2015· Nickel–zinc ferrite with composition Ni 0.64 Zn 0.36 Fe 2 O 4 has the spinel-type structure and belongs to soft ferrites with a high value of magnetic permeability and high resistance ρ (10 5 Ωm) . Devices obtained from this material are used for example …

Heat Treatment Effects on Microstructure and Magnetic ...

Ping Hu et al. [1] have studied the effects of sintering (400 Ce1200 for 1 h) on microstructure and magnetic properties of MneZn ferrite powders synthesized by auto-combustion technique. The ...

Effects of Additives and Sintering Time on the ...

This work aims to investigate the relationship between the microstructure of Ni-Zn ferrite and its electrical and magnetic properties in the presence and absence of as small amounts as 0.12% of 0.4CaO + 0.8SiO 2 over different sintering times. The X-ray diffraction pattern showed a single spinel phase formation in all the samples.

Magnetic Properties and Associated Microstructure of …

Magnetic Properties and Associated Microstructure of Zinc‐Bearing Square‐Loop Ferrites Magnetic Properties and Associated Microstructure of Zinc‐Bearing Square‐Loop Ferrites PALMER, G. G.; JOHNSTON, R. W.; SCHULTZ, R. E. 1957-08-01 00:00:00 Elecl~~nicr labocotory. GenwoC Electric Cornpony, Syracuse, New York Zinc oxide was added to square-loop ferrite compositions in order to …

The microstructure and characterization of nickel ferrite ...

6/1/2016· The d values and intensities of observed diffraction peaks matches well with JCPDS card no. 52-0278 of the nickel zinc ferrite having Fd-3m space group.It gives the major phases in all preparations was the spinel phase (Nickel zinc ferrite) at the peaks (220), (311), (222), (400), (422), (511), and (440).

Microstructural and magnetic properties of Zn …

6/26/2019· This work reports the synthesis of Ni1−x Zn x Fe2O4 ferrite (where x = 0, 0.1, 0.3, and 0.5) by a facile solution combustion method, using oxalyl-dihydrazide as a fuel. Owing to stoichiometric mixing of the starting materials and dissipation of heat during the combustion process, nano-sized spinel ferrites have been synthesised. Fourier transform infrared spectroscopy studies were carried ...

Effects of the rare-earth ions on some properties of a ...

Effects of the rare-earth ions on some properties of a nickel-zinc ferrite To cite this article: N Rezlescu et al 1994 J. Phys.: Condens. Matter 6 5707 View the article online for updates and enhancements. Related content Influence of CaO and SiO2 co-doping on the magnetic, electrical properties and microstructure of a Ni Zn ferrite

Sol-gel auto-combustion synthesis of spinel-type ferrite ...

5/14/2012· Recent developments and trends of sol-gel auto-combustion method for spinel ferrite nanomaterial synthesis are briefly discussed and critically analyzed. The analysis of various parameters of reaction which could be used for better understanding of synthesis process and control of microstructure and property of spinel ferrite nanopowder products was the main objective of this …

High frequency magnetic properties and microstructure …

Abstract. The NiZn(Ni 0.4 Zn 0.6 Fe 2 O 4) spinel ferrite and Co 2 Z(Ba 3 Co 2 Fe 24 O 41) hexagonal ferrite composite materials with the various Co 2 Z contents have been synthesized by the solid-state reaction method. The phases and microstructures of the sintered ceramics have been analyzed. The results show that Co 2 Z grains exist as a secondary phase in composites and remarkably affect ...

Synthesis, Permeability and Microstructure of the …

The ferrite which contains nickel and zinc was found to form homogenously at lower temperatures and given well controlled properties [5]. In the present paper, an extensive study on the synthesis and measurements of the initial magnetic permeability (µ ι )/ relative loss factor (RLF) were made on toroidal ferrite cores at lower and higher ...

Synthesis, Permeability and Microstructure of the Optimal ...

Nickel-zinc ferrite (α-phase) were detected, indicating the formation of Nickel-zinc ferrite. However, the XRD patterns corresponding to iron oxide Fe2O3 (β-phase) were also detected. The ferrite was a solid solution of Ni and Zn metals containing ferric Fe3+ as the main element. Thus, the appearance of the secondary phase Fe2O3

Sintering Temperature Effect on Microstructure and ...

The morphology and evolution of magnetic properties in multisample sintering (MSS) of yttrium iron garnet (Y3Fe5O12, YIG) and single-sample sintering (SSS) of nickel zinc ferrite (Ni0.6Zn0.4Fe2O4, NZF) were studied in detail, focusing on the parallel evolving relationship with their dependences on sintering temperature. Sintering is an important process in ferrite fabrication which involved ...

Nickel-Zinc Ferrite - an overview | ScienceDirect Topics

The magnetic and electrical properties of commercial ferrites are highly dependent on the departure of stoichiometry from the ideal spinel phase, M 3 O 4 or (MO·M 2 O 3). The specific example selected is for a technologically relevant material, nickel zinc ferrite, represented by the generic formula Ni x Zn y Fe (1-x-y) Fe 2 O 4+γ [11].

Role of Ruthenium in the Dielectric, Magnetic Properties ...

magnetic anisotropy in rare-earth-doped spinel ferrites is related to 4f−3d couplings between transition-metal and rare-earth ions.14,15 As, for example, Peng et al. reported improved electrical and magnetic properties of praseodymium-doped nickel-zinc ferrite,16 Ali et al. reported enhanced magnetic

Properties of Zinc Ferrite Nanoparticles Due to PVP ...

In contributing to the improvement of Ferrite Magnetic nanoparticles, the effects of Poly (Vinyl Pyrrolidone) (PVP) and annealing on the structural and magnetic properties of Zinc ferrite nanoparticles (ZFNPs) synthesis were investigated in this work. The effects were evaluated using the X-ray diffraction (XRD) spectroscopy, Scanning electron microscopy (SEM), Fourier transform infrared ...

Magnetic Properties of Nickel–Zinc Ferrite Toroids ...

Magnetic Properties of Nickel–Zinc Ferrite Toroids Prepared from Nanoparticles Article in Journal of the American Ceramic Society 90(11):3547 - 3553 · November 2007 with 177 Reads

Fabrication and magnetic properties of Sol-Gel derived ...

We present a new solution-phase, sol-gel based spin-coating method to fabricating high quality, nickel zinc ferrite (NZFO) thin films. The effect of annealing temperature on the microstructure, static magnetic properties and X-band FMR linewidth and resonance field was investigated.

microstructure related to magnetic properties in nickel ...

Physical interpretation of magnetic behavior in nickel . Abstract Nickel Zinc Ferrite is a soft magnetic material and the properties of ferrite are Nickel Zinc Ferrite is a soft magnetic material and the properties of ferrite are dependent on several factors including the sintering temperature method of preparation and microstructure . Sales Online

Synthesis and characterization of low density porous ...

Ni–Zn ferrite has important applications in the field of soft magnetic materials due to its excellent magnetic properties, but its high bulk density hinders its promotion. Herein, an oxalate precursor was prepared by a coprecipitation method with metal sulfate and …

Microstructural and magnetic properties of Zn substituted ...

This work reports the synthesis of Ni 1−x Zn x Fe 2 O 4 ferrite (where x = 0, 0.1, 0.3, and 0.5) by a facile solution combustion method, using oxalyl-dihydrazide as a fuel. Owing to stoichiometric mixing of the starting materials and dissipation of heat during the combustion process, nano-sized spinel ferrites have been synthesised.

Preparation and magnetic properties of nano size nickel ...

Nickel ferrite, a kind of soft magnetic materials is one of the most attracting class of materials due to its interesting and important properties and has many technical applications, such as in catalysis, sensors and so on. In this paper the synthesis of NiFe2O4 nanoparticles by the hydrothermal method is reported and the inhibition of surfactant (Glycerol or Sodium dodecyl sulfate) on the ...

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