Iron, nickel and zinc stoichiometric influences on the dynamic magneto-elastic properties of spinel ferrites

Grimal, Virginie; Autissier, D.; Longuet, L.; Pascard, H.; Gervais, Monique

doi:10.1016/j.jeurceramsoc.2005.10.009

Cited by 17 publications

(9 citation statements)

References 6 publications

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“…With increasing z , the composition of the remaining stoichiometric ferrite phase tends to become more Cu‐poor and Zn‐rich. The T c of Zn‐rich ferrites is reduced, as already demonstrated for the Ni–Zn ferrite system . Similar observations were reported for sub‐stoichiometric Ni–Cu–Zn ferrites …”

Section: Resultssupporting

confidence: 87%

Phase Formation, Sintering Behavior, and Magnetic Properties of Low‐Temperature Fired Mg–Cu–Zn Ferrites

Mürbe

Töpfer

2012

J. Am. Ceram. Soc.

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The phase formation, sintering behavior, and magnetic properties of Mg-Cu-Zn ferrites with composition Mg 1ÀxÀy Cu y Zn x+z Fe 2Àz O 4Àz/2 with 0.4 x 0.8; 0 y 0.35; and 0 z 0.06 were investigated. Ferrite formation from starting oxides is complete at 900°C. To guarantee sufficient densification at 900°C substoichiometric compositions with small iron deficiency z = 0.02 are required. Substitution of Cu for Mg with 0 y 0.35 in a ferrite with x = 0.5 has minor effect on permeability only; however, the shrinkage is significantly shifted to temperatures as low as T < 900°C. The permeability is mainly governed by the Zn concentration; l increases from l = 200 to 700 as x increases from x = 0.4 to 0.6, whereas simultaneously the Curie temperature is reduced from 180°C to 40°C, respectively. Mg-Cu-Zn ferrites represent an interesting alternative to Ni-Cu-Zn ferrites with large potential for multilayer applications. P. A. Joy-contributing editor Manuscript No. 31379.

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Section: Resultssupporting

confidence: 87%

Phase Formation, Sintering Behavior, and Magnetic Properties of Low‐Temperature Fired Mg–Cu–Zn Ferrites

Mürbe

Töpfer

2012

J. Am. Ceram. Soc.

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“…[2,3]. Nanocrystalline spinel ferrites belong to a family of magnetic materials that can be used in many areas, such as magnetic devices, switching devices, recording tapes, permanent magnets, hard disc recording media, flexible recording media, read-write heads, active components of ferrofluids, color imaging, magnetic refrigeration, detoxification of biological fluids, magnetically controlled transport of anticancer drugs and magnetic cell separation [4,5].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of magnetic Ni_0.3 Zn_0.7 Fe₂ O₄/polyvinyl acetate (PVAC) nanocomposite

Doulabi¹,

Mohsen-Nia²,

Taraghikhah³

2014

Journal of Polymer Engineering

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The magnetic Ni 0.3 Zn 0.7 Fe 2 O 4 nanoparticles were expected to have wide applications in bionanoscience and electronic devices technology. In this work, Ni 0.3 Zn 0.7 Fe 2 O 4 nanoparticles were synthesized successfully by a redox chemical reaction in an aqueous solution of nickel chloride, zinc chloride and ferric chloride. Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize the shape, structure and size of the synthesized magnetic nanoparticles. The magnetic properties of Ni 0.3 Zn 0.7 Fe 2 O 4 nanoparticles were studied using a vibrating sample magnetometer (VSM). The XRD patterns of the synthesized nanoparticles revealed the formation of the single phase spinel structure of the synthesized materials. The synthesized Ni 0.3 Zn 0.7 Fe 2 O 4 nanoparticles were used for the preparation of Ni 0.3 Zn 0.7 Fe 2 O 4 /polyvinyl acetate (PVAC) nanocomposites by an in situ emulsion polymerization method. The synthesized Ni 0.3 Zn 0.7 Fe 2 O 4 nanoparticles exhibited superparamagnetic behavior at the room temperature under an applied magnetic field. Magnetization measurements indicated that the saturation magnetization of synthesized Ni 0.3 Zn 0.7 Fe 2 O 4 /PVAc nanocomposites was markedly less than that of Ni 0.3 Zn 0.7 Fe 2 O 4 magnetic nanoparticles.

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“…The control of the dielectric behaviours as well as the magnetic properties at high frequencies has attracted much attention in recent years [10]. Since the electromagnetic properties of spinel CoFe 2 O 4 ferrite nanoparticles are sensitive to their compositions and microstructures [11], the key to obtaining high-performance ferrites is a synthesis by a special technique. Traditional ceramic preparation methods [12,13] for nanosized spinel ferrite often suffer from uncontrolled stoichiometric poor composition, chemical inhomogenity, contamination, coarser particle size, and introduction of impurities during ball milling/grinding and high annealing temperature [14,15].…”

Section: Introductionmentioning

confidence: 99%

Optical, magnetic and electrical investigation of cobalt ferrite nanoparticles synthesized by co-precipitation route

Gul

Maqsood

Naeem

et al. 2010

Journal of Alloys and Compounds

163

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Iron, nickel and zinc stoichiometric influences on the dynamic magneto-elastic properties of spinel ferrites

Cited by 17 publications

References 6 publications

Phase Formation, Sintering Behavior, and Magnetic Properties of Low‐Temperature Fired Mg–Cu–Zn Ferrites

Phase Formation, Sintering Behavior, and Magnetic Properties of Low‐Temperature Fired Mg–Cu–Zn Ferrites

Synthesis and characterization of magnetic Ni_0.3 Zn_0.7 Fe₂ O₄/polyvinyl acetate (PVAC) nanocomposite

Optical, magnetic and electrical investigation of cobalt ferrite nanoparticles synthesized by co-precipitation route

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Iron, nickel and zinc stoichiometric influences on the dynamic magneto-elastic properties of spinel ferrites

Cited by 17 publications

References 6 publications

Phase Formation, Sintering Behavior, and Magnetic Properties of Low‐Temperature Fired Mg–Cu–Zn Ferrites

Phase Formation, Sintering Behavior, and Magnetic Properties of Low‐Temperature Fired Mg–Cu–Zn Ferrites

Synthesis and characterization of magnetic Ni0.3 Zn0.7 Fe2 O4/polyvinyl acetate (PVAC) nanocomposite

Optical, magnetic and electrical investigation of cobalt ferrite nanoparticles synthesized by co-precipitation route

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Synthesis and characterization of magnetic Ni_0.3 Zn_0.7 Fe₂ O₄/polyvinyl acetate (PVAC) nanocomposite