Synthesis, characterization and effect of sintering temperature on magnetic properties of MgNi ferrite prepared by co-precipitation method

Hankare, P.P.; Jadhav, S. D.; Sankpal, U.B.; Chavan, S.S.; Waghmare, K.J.; Chougule, B.K.

doi:10.1016/j.jallcom.2008.08.082

Cited by 64 publications

(14 citation statements)

References 14 publications

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“…This uniaxial anisotropy in magnetic nanoferrites occurred as a result of surface effects [45]. The magnetic moment per formula unit in Bohr magnetron was also calculated by using following relation [46]:…”

Section: Ftir Analysismentioning

confidence: 99%

WITHDRAWN: Influence of trivalent rare earth (Dy3+) ions substitution on the structural, magnetic and dielectric properties of nanosized Ni0.6Cd0.4DyxFe2‒xO4 ferrites

Dubey

Lahiri

2020

Preprint

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In the present work, Ni0.6Cd0.4DyxFe2‒xO4 (x = 0.0, 0.05, 0.10, 0.15 and 0.20) nanoparticles (NPs) were synthesized by using sol-gel auto combustion method. The structural characterization was performed by XRD, FTIR, SEM, TEM and EDS analyses. XRD patterns confirmed that the pure and dysprosium substituted Ni-Cd ferrites are in single phase spinel structures, while a trace of DyFeO3 appears as a minor phase for higher concentrations (x = 0.10, 0.15 and 0.20). The Debye‒Scherrer’s method and Williamson-Hall (W-H) method were used to evaluate the crystallite sizes and lattice strain. The average crystallite size was found to be in the range from 27 to 48 nm. FT-IR confirms the formation of spinel structure. SEM images show that reduction of grain size with Dy3+ content. Elemental composition features of samples were examined by EDS. The average particles size estimated from TEM analysis are in good agreement with results obtained from the XRD. The results showed that saturation magnetization (Ms) decreases and coercivity (Hc) increases with increase in Dy3+ concentrations. The dielectric constant and the loss tangent decrease rapidly with increasing frequency and then reaches a constant value, characteristic of normal behavior of ferrites. The dielectric constant was found to decrease with increasing Dy content in Ni-Cd ferrites. Ferrite sample with Dy3+ concentration, x = 0.05 show high dielectric constant, low dielectric loss and hence can be utilized in high frequency electrical circuits.

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Section: Ftir Analysismentioning

confidence: 99%

WITHDRAWN: Influence of trivalent rare earth (Dy3+) ions substitution on the structural, magnetic and dielectric properties of nanosized Ni0.6Cd0.4DyxFe2‒xO4 ferrites

Dubey

Lahiri

2020

Preprint

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show abstract

“…self combustion) as the fuel ratio increases. This was observed as a longer flame time with higher n. It is well known that increase in sintering temperature and/or time increases the crystal size and improves the density of the sample [22]. Fig.…”

Section: Resultsmentioning

confidence: 69%

The effect of urea-to-nitrates ratio on the morphology and magnetic properties of Mn0.8Mg0.2Fe2O4

Ahmed¹

2010

Journal of Magnetism and Magnetic Materials

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“…The structural and magnetic properties of these ferrite systems with respect to different sintering temperature conditions have been reported by many workers [12,13]. In this communication, we report the effects on structural and magnetic properties of the Li 0.5 Fe 1.5 Cr 1.0 O 4 samples with sintering temperature (T s ) from 673 to 973 K. * Corresponding authors.…”

Section: Introductionmentioning

confidence: 55%

Effect of sintering temperature on structural, magnetic properties of lithium chromium ferrite

Patil

Hankare

Garadkar

et al. 2012

Journal of Alloys and Compounds

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Synthesis, characterization and effect of sintering temperature on magnetic properties of MgNi ferrite prepared by co-precipitation method

Cited by 64 publications

References 14 publications

WITHDRAWN: Influence of trivalent rare earth (Dy3+) ions substitution on the structural, magnetic and dielectric properties of nanosized Ni0.6Cd0.4DyxFe2‒xO4 ferrites

WITHDRAWN: Influence of trivalent rare earth (Dy3+) ions substitution on the structural, magnetic and dielectric properties of nanosized Ni0.6Cd0.4DyxFe2‒xO4 ferrites

The effect of urea-to-nitrates ratio on the morphology and magnetic properties of Mn0.8Mg0.2Fe2O4

Effect of sintering temperature on structural, magnetic properties of lithium chromium ferrite

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