Influence of V2O5 on the magnetic properties of nickel–zinc–copper ferrites

Lebourgeois, Richard; Duguey, Sonia; Ganne, Jean‐Pierre; Heintz, Jean‐Marc

doi:10.1016/j.jmmm.2006.10.698

Cited by 56 publications

(22 citation statements)

References 2 publications

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“…For instance, the adding of Bi 2 O 3 and V 2 O 5 can lower the sintering temperature and improve the initial permeability [8][9][10]. However, stoichiometric compositions cannot be well controlled by conventional ceramic processes, and impurities would be introduced during ball-milling.…”

Section: Introductionmentioning

confidence: 99%

Structural, dynamic magnetic and dielectric properties of Ni0.15Cu0.2Zn0.65Fe2O4 ferrite produced by NaOH co-precipitation method

Wang

Liu

et al. 2008

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Structural, dynamic magnetic and dielectric properties of Ni0.15Cu0.2Zn0.65Fe2O4 ferrite produced by NaOH co-precipitation method

Wang

Liu

et al. 2008

Journal of Alloys and Compounds

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“…6,7 Ni-Cu-Zn ferrites were considered as one of the most versatile magnetic materials to manufacture Multilayer chip inductors (MLCIs) mainly because of their high electrical resistivity, low sintering temperature and high permeability. 8,9 Recently due to better magnetic properties, controlled shape of nanocrystalline Ni-Cu-Zn ferrites have been the dominant materials for MLIC at high frequency and low sintering temperature. [10][11][12][13][14][15][16] These oxides can be sintered at relatively low temperatures with a wide range of compositions.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Chromium Doped Ni-Cu-Zn Nano Ferrites

Shinde¹,

Dhale

Suryavanshi

et al. 2017

ACSi

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Chromium doped Ni-Cu-Zn nano ferrites with chemical formula Ni 0.2 Cu 0.2 Zn 0.6 Fe 2-x Cr x O 4 (x = 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0) were prepared by using sol-gel auto combustion method. The prepared precursors of Chromium substituted Ni-CuZn ferrites were sintered at 500 °C for 4h. Compositional stoichiometry were confirmed from EDAX patterns. The XRD data revealed that the all samples possess a single phase cubic spinel structure. The Lattice constant, X-ray density, hopping lengths and crystallite size determined from XRD data decreases with increase in Cr 3+ concentration. The IR spectra show two major absorption bands, high frequency band ν 1 ≈ 600 cm -1 and low frequency band ν 2 ≈ 450 cm -1 attributed to the stretching vibration of tetrahedral and octahedral sites respectively. The surface morphology of the prepared samples was studied by Scanning Electron Microscopy and Transmission Electron Morphology.

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“…Recently, copper-substituted Ni-Zn ferrite has been considered as one of the most important magnetic materials for multilayer chip inductor (MLCI) applications [4][5][6][7]. Depending upon the amount of copper substitution, increase in density, electrical resistivity, and initial permeability can be achieved at relatively low sintering temperatures [8][9][10][11][12][13][14]. In the present work, Cu has been chosen to replace zinc due to the fact that Cu-substituted ferrites increase the density and resistivity and decrease the sintering temperature.…”

Section: Introductionmentioning

confidence: 99%

Structural, Magnetic, and Electrical Properties of Ni0.65Zn0.35−x Cu x Fe2 O 4 Nanoferrite System

Venkatesh

Himavathi

Ramesh

2015

J Supercond Nov Magn

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Copper-substituted Ni-Zn nanoferrite system having the composition of Ni 0.65 Zn 0.35−x Cu x Fe 2 O 4 (x = 0.00, 0.05, 0.10, 0.15, 0.20, 0.25) has been prepared by autocombustion method. Structural and magnetic characterizations were done on the as-prepared powders while the dc electrical conductivity measurements were studied on pellets sintered at 900 • C. X-ray diffraction measurements of all the samples showed a single spinel phase. The lattice parameter has been found to decrease with increasing Cu, and this variation in the spinel unit cell is ascribed to the difference in the ionic radius of Cu 2+ and Zn 2+ ions. The average crystallite size was determined using the Scherrer equation. The dc electrical resistivity of nanocrystalline starting composition Ni 0.65 Zn 0.35 Fe 2 O 4 was few orders of magnitude higher than the bulk Ni 0.65 Zn 0.35 Fe 2 O 4 prepared by conventional ceramic method. However, Curie's temperatures and dielectric constant were decreased with increasing copper concentration. The observed variation in dc electrical resistivity and activation energy for conduction with Cu 2+ substitution is attributed to changes in the microstructure , structural defects, and hopping mechanism.

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Influence of V2O5 on the magnetic properties of nickel–zinc–copper ferrites

Cited by 56 publications

References 2 publications

Structural, dynamic magnetic and dielectric properties of Ni0.15Cu0.2Zn0.65Fe2O4 ferrite produced by NaOH co-precipitation method

Structural, dynamic magnetic and dielectric properties of Ni0.15Cu0.2Zn0.65Fe2O4 ferrite produced by NaOH co-precipitation method

Preparation and Characterization of Chromium Doped Ni-Cu-Zn Nano Ferrites

Structural, Magnetic, and Electrical Properties of Ni0.65Zn0.35−x Cu x Fe2 O 4 Nanoferrite System

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