Effect of calcination temperature and cobalt addition on structural, optical and magnetic properties of barium hexaferrite BaFe12O19 nanoparticles

Habanjar, Khulud; Shehabi, Haneen; Abdallah, A.M.; Awad, R.

doi:10.1007/s00339-020-03497-3

Cited by 42 publications

(10 citation statements)

References 51 publications

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“…However, the SEM images are recognized as nanorods when the annealing temperature is between 800 and 1000°C. However, in comparison to this finding [9,10], the coercivity is unexpectedly inverted. e irregularities are limited to the effects of annealing temperature and pH values, as discovered by Balamurugun et al [12], who provided the research with an excellent investigation on the influence of various precipitants.…”

Section: Introductioncontrasting

confidence: 71%

“…However, there have been many attempts to explore some abnormalities that impacted on the properties of BaFe 12 O 19 by a coprecipitation method. e effects of calcination temperature and the addition of Co on the properties of BaFe 12 O 19 have been studied by Hajanbar et al [9], finding that crystalline phase growth is more evident with increasing annealing temperature. e magnetic property similarly decreases when Co is dopped.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Drying Temperature on the Magnetic and Microstructural Properties of BaFe₁₂O₁₉ Synthesized by Coprecipitation Method

Sanda

Hakimi

Yazdi

et al. 2021

Advances in Materials Science and Engineering

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Barium hexaferrite (BaFe12O19) has dominated many aspects of technology, serving as a permanent magnet, magnetoelectric, multiferroic, and electric motors, generators, microwave devices, and drug delivery systems. There is a challenge in the synthesis of BaFe12O19 with the coprecipitation method. As a result, research is conducted to examine the factors influencing the properties of BaFe12O19 during the preparation process, specifically on the drying temperature of the mixture. The precursors were precipitated, through some procedural steps, along with stirring at 450 rpm at a certain temperature for a while and simultaneously pouring the precipitant dropwise; the sample was dried at different temperatures. The final samples were annealed at the same rate of temperature within the same time interval. The results depicted that drying at different temperatures leads to the variation in the magnetic and microstructural properties of BaFe12O19, indicating that drying at high temperatures resulted in high coercivity with low saturated magnetization.

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Section: Introductioncontrasting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Effect of Drying Temperature on the Magnetic and Microstructural Properties of BaFe₁₂O₁₉ Synthesized by Coprecipitation Method

Sanda

Hakimi

Yazdi

et al. 2021

Advances in Materials Science and Engineering

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“…[ 44,93 ] Unfortunately, we are not aware of experimental data for bandgap values of

Zr

‐doped BFO. However, Habanjar et al [ 45 ] have observed a similar decrease of

E_{normalg}

by adding

Co

ions to BFO, leading to tensile strain, too.…”

Section: Numerical Results and Discussionmentioning

confidence: 90%

“…The size dependence of

ϵ'

in BFO is reported by Kumar et al [ 43 ] The bandgap of BFO NPs for different doping ions has been studied elsewhere. [ 40,44,45 ]…”

Section: Introductionmentioning

confidence: 99%

Multiferroic Properties of Pure, Transition‐Metal and Rare‐Earth–Doped BaFe₁₂O₁₉ Nanoparticles

Apostolova

Apostolov

Trimper

et al. 2021

Physica Status Solidi (b)

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Different properties of pure and Ni, Zr, and Sm‐doped BaFe12O19—bulk and nanoparticles—are investigated using a microscopic model and the Green's function technique. The magnetization Mnormals increases whereas the coercive field Hnormalc decreases with increasing particle size. The doping leads to a decrease of Ms and the bandgap energy Eg with increasing Zr concentration x due to tensile strain and to an increase of Ms and Eg after Ni doping due to compressive strain as well as due to size effects. The behavior of the spontaneous polarization Ps and the real part ϵ′ of the dielectric constant is opposite. The ϵ′ of a pure BaFe12normalO19 nanoparticle decreases with increasing magnetic field h. The effects of Sm substitution at Ba or Fe sites on ϵ′ and Ms are also studied.

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“…By adequately substituting different types of cations at the M 2+ or Fe 3+ site, magnetic properties of M-type hexaferrite can be improved. Several authors have tried to tailor M-type hexaferrites properties by replacing Fe 3+ by divalent cations such as Co, Cu, Ga, Ni [12][13][14][15], trivalent cations such as Al, Ce, La, Nd, Pr [16,17] and mixture of cations such as Co-Zr [18], Cu-V [19], Gd-Co [20], La-Co [21], Nd-Co [22], Zn-Mo [23], and Zn-Zr [24][25][26][27][28][29]. Very few studies have been reported on the alteration of SrM's magnetic properties by co-substitution of Zn 2+ -Zr 4+ cations [24--26].…”

Section: Introductionmentioning

confidence: 99%

Tailoring the magnetic properties of M-type strontium ferrite with synergistic effect of co-substitution and calcinations temperature

Godara

Kaur

Narang

et al. 2021

Journal of Asian Ceramic Societies

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SrFe 12 O 19 samples were initially prepared using sol-gel auto-combustion method and calcined from 500 to 1100°C (for 6 h). XRD data established the phase formation temperature of SrM phase to be ≈1000°C. Thereafter, the effect of Zn 2+ -Zr 4+ co-dopant on magnetic and structural properties of SrZn x Zr x Fe 12-2x O 19 (x = 0.00-1.00) samples calcined between 900-1100°C was investigated. XRD data shows that the cell volume increases (from 690.45Å 3 (x = 0.00) to 705.72Å 3 (x = 1.00)) while crystallite size decreases (from 123.9 nm (x = 0.00) to 62.3nm (x = 1.00)) calcined at 1000°C. The Rietveld refinement of XRD data confirms a) x = 0.00 sample to be phase pure and b) the presence of ZnFe 2 O 4 (≈2.25) & SrZrO 3 (≈2.93%) impurity phases in x = 1.00 sample, calcined at 1000°C. FESEM micrographs revealed that a) grain size decreases for x > 0.20 with `x' at 900°C and b) increases from 122 nm at 900°C to 443 nm at 1100°C, for x = 0.00. Broadening of Raman bands reveals generation of strain in the lattice with enhancement of Zn 2+ -Zr 4+ concentration. The magnetic studies reveal that the coercivity monotonically decreases (from 5358(x = 0.00) Oe to 690(x = 1.00) Oe at 1000°C) with enhancement of Zn 2+ -Zr 4+ concentration. A maximum M s value ≈ 70.89 emu/g was observed in x = 0.20 sample at 1100°C. M s value also decreases for x > 0.20 at each calcination temperature.

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Effect of calcination temperature and cobalt addition on structural, optical and magnetic properties of barium hexaferrite BaFe12O19 nanoparticles

Cited by 42 publications

References 51 publications

Effect of Drying Temperature on the Magnetic and Microstructural Properties of BaFe₁₂O₁₉ Synthesized by Coprecipitation Method

Effect of Drying Temperature on the Magnetic and Microstructural Properties of BaFe₁₂O₁₉ Synthesized by Coprecipitation Method

Multiferroic Properties of Pure, Transition‐Metal and Rare‐Earth–Doped BaFe₁₂O₁₉ Nanoparticles

Tailoring the magnetic properties of M-type strontium ferrite with synergistic effect of co-substitution and calcinations temperature

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Effect of calcination temperature and cobalt addition on structural, optical and magnetic properties of barium hexaferrite BaFe12O19 nanoparticles

Cited by 42 publications

References 51 publications

Effect of Drying Temperature on the Magnetic and Microstructural Properties of BaFe12O19 Synthesized by Coprecipitation Method

Effect of Drying Temperature on the Magnetic and Microstructural Properties of BaFe12O19 Synthesized by Coprecipitation Method

Multiferroic Properties of Pure, Transition‐Metal and Rare‐Earth–Doped BaFe12O19 Nanoparticles

Tailoring the magnetic properties of M-type strontium ferrite with synergistic effect of co-substitution and calcinations temperature

Contact Info

Product

Resources

About

Effect of Drying Temperature on the Magnetic and Microstructural Properties of BaFe₁₂O₁₉ Synthesized by Coprecipitation Method

Effect of Drying Temperature on the Magnetic and Microstructural Properties of BaFe₁₂O₁₉ Synthesized by Coprecipitation Method

Multiferroic Properties of Pure, Transition‐Metal and Rare‐Earth–Doped BaFe₁₂O₁₉ Nanoparticles