Application of the Electron Theory of Sintering to the Ferrite Systems

Kopayev, A.V.; Bushkova, V. S.

doi:10.12693/aphyspola.117.30

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…due to its electronic, magnetic, and catalytic properties [1]. The promising and extensively used Mg-Zn ferrite nanoparticles are suitable for applications not only in the field of electronics [2], heterogeneous catalysis, sensors, magnetic technologies, but also in medicine for cancer treatment by hyperthermia [3] and other biomedicines [4]. Chemically and thermally stable zinc ferrite material are used for photocatalysis, magnetic resonance imaging (MRI), drug delivery, and pigments [5,6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, investigation, structural and elastic properties of MgxZn1-xFe2O4 nanoparticles

Patil¹,

Chaudhari²,

Kute³

et al. 2022

Nanosystems: Phys. Chem. Math.

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Magnesium-Zinc Ferrite nanoparticles of different compositions are synthesized by using the solgel auto-combustion method with citric acid as a fuel. Structural characteristics were studied using X-ray diffraction technique and it confirms the formation of cubic spinel structure. The ferrite nanoparticle size of synthesized powder ranges from 22 -24 nm. The effect of change in Mg 2+ content results in a change of the lattice parameter of ferrite nanoparticles. In the present paper, the structural parameters such as cationcation and cation-anion distances, tetrahedral, octahedral bond lengths and bond angles, hopping lengths, shared, unshared tetrahedral, and octahedral edge are reported. FTIR spectra show two prominent peaks around 524 -532 cm −1 (tetrahedral site) and 409 -432 cm −1 (octahedral site) and the force constants of the octahedral and tetrahedral site of Mg-Zn ferrite were calculated. The elastic moduli and other factors such as longitudinal, transverse and mean velocity, Poisson ratio, and Debye temperature were determined. KEYWORDS Magnesium-Zinc ferrite nanoparticles, sol-gel auto-combustion method, cubic spinel structure, bond lengths and bond angles, hopping lengths, elastic moduli FOR CITATION Patil

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Section: Introductionmentioning

confidence: 99%

Synthesis, investigation, structural and elastic properties of MgxZn1-xFe2O4 nanoparticles

Patil¹,

Chaudhari²,

Kute³

et al. 2022

Nanosystems: Phys. Chem. Math.

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show abstract

“…Magnesium-zinc ferrites are stable inexpensive magnetic semiconductors, which are widely used in electronics and telecommunication [5]. At present, large crystalline particles of those ferrites and their properties have already been studied.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Magnetic Microstructure of Nanoparticles of Zinc-Substituted Magnesium Ferrites

Ostafijchuk¹,

Bushkova²,

Moklyak³

et al. 2015

Ukr. J. Phys.

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Nano-sized magnesium-zinc powders are synthesized, by using the sol-gel autocombustion technology. On the basis of X-ray researches, the phase composition of non-magnetic substituted ferrite systems is determined. The resulting complex oxide powders are found to be agglomerated. The agglomerates consist of several nanoparticles with an average size of 18-32 nm. According to the cation distribution in magnesium-zinc ferrites, Zn 2+ cations are found to occupy positions in the tetrahedral sublattice (A-sites) and displace Fe 3+ cations into the octahedral sublattice (B-sites). The Mössbauer spectrum registered for the magnesium ferrite powder at room temperature shows two characteristic Zeeman sextets. For ferrites substituted with non-magnetic cations, the Mössbauer spectra are superpositions of several sextets and superposing doublets. The studies also show that the shape of Zeeman spectral lines depends on the particle size, which testifies to their superparamagnetic properties. The dependence of Mössbauer parameters such as the isomer shift, the quadrupole splitting, and the hyperfine magnetic field on the Zn 2+ ion concentration is discussed. It is supposed that a change of the effective magnetic field with increasing the zinc content in magnesium-zinc ferrites is related to the fact that the substitution of Fe 3+ cations by Zn 2+ ones reduces the indirect exchange interaction between the A and B sublattices in ferrites with the spinel structure, which actually leads to their magnetic ordering.

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The Samsonov Configurational Model: Instructive Historical Remarks and the Extension of Its Application to Substituted Hydroxyapatite

Uskoković

2022

Comments on Inorganic Chemistry

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Application of the Electron Theory of Sintering to the Ferrite Systems

Cited by 3 publications

References 14 publications

Synthesis, investigation, structural and elastic properties of MgxZn1-xFe2O4 nanoparticles

Synthesis, investigation, structural and elastic properties of MgxZn1-xFe2O4 nanoparticles

Synthesis and Magnetic Microstructure of Nanoparticles of Zinc-Substituted Magnesium Ferrites

The Samsonov Configurational Model: Instructive Historical Remarks and the Extension of Its Application to Substituted Hydroxyapatite

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