Synthesis, structure and magnetic properties of nano-sized CoFe&lt;SUB align=right&gt;2O&lt;SUB align=right&gt;4 material

Al-Saie, A. M.; Arekat, S.; Jaafar, Adnan; Bououdina, M.

doi:10.1504/ijnp.2009.028788

Cited by 5 publications

(3 citation statements)

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“…This variance could be attributed to the fact that in the present work Fe 2 O 3 was used instead of Fe 3 O 4. Furthermore, it could be also attributed to the phase of TiO 2 , in the present work TiO 2 rutile phase was used while He et al [10] used anatase phase. However, as the mixture oxide was annealed at 600 1C and then at 750 1C the value of Ms decreased to 1.81 emu/g and 1.0 emu/g respectively, which is lower than that of pure Fe 2 O 3 phase, but maintaining a ferromagnetic behavior.…”

Section: Structure Evolutionmentioning

confidence: 84%

“…It is known that ball milling is a synthesis technique that currently attracts scientists as an alternative method of producing nanocrystalline materials [9,10]. In the present paper, the structure and magnetic properties evolution of Fe 2 O 3 and TiO 2 oxides mixture prepared by mechanical milling followed by subsequent annealing were investigated.…”

Section: Introductionmentioning

confidence: 98%

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Effect of annealing on the structure and magnetic properties of mechanically milled TiO2–Fe2O3 mixture

Al-Saie

Alshater

Arekat

et al. 2013

Ceramics International

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Section: Structure Evolutionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 98%

Effect of annealing on the structure and magnetic properties of mechanically milled TiO2–Fe2O3 mixture

Al-Saie

Alshater

Arekat

et al. 2013

Ceramics International

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“…Mechanical alloying (MA) is a synthesis technique that currently attracts scientists as an alternative method of producing nanocrystalline materials (Xiaoyan et al, 2006;Al-Saie et al, 2009). In the present paper, the structure and magnetic properties evolution of Fe 2 O 3 and TiO 2 oxides mixture prepared by mechanical milling followed by subsequent annealing were investigated.…”

Section: Introductionmentioning

confidence: 99%

Structural and magnetic properties of mechanically milled TiO<SUB align=right>2-Fe<SUB align=right>2O<SUB align=right>3 mixture

Al-Saie

Jaffar

Bououdina

2011

IJNP

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A mixture of Fe 2 O 3 and TiO 2 oxides has been mechanically milled to form TiFe 2 O 4 spinel phase. X-ray diffraction pattern of the as-milled mixture shows the presence of both Fe 2 O 3 and TiO 2 phases. The broadening of the diffraction peaks and the decrease of their relative intensity are due to the grain size reduction and accumulation of internal strains. Annealing at 750°C leads to an increase of the Fe 2 O 3 peaks intensity and the reduction of TiO 2 amount suggesting a possible diffusion of Ti into Fe 2 O 3 crystal lattice to form Fe 2-x TixO 3 compound. The saturation magnetisation (Ms) drops from 2.6 emu/g for the as-milled mixture to 0.8 emu/g after annealing.

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Discrepancy of room temperature ferromagnetism in Mo-doped In 2 O 3

et al. 2013

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Molybdenum-doped indium oxide nanopowders were synthesized via mechanical alloying with subsequent annealing at a relatively low temperature of 600 • C. The morphologies and crystal structures of the synthesized nanopowders were examined by using scanning electron microscopy (SEM) and X-ray diffraction patterns. X-ray diffraction pattern of the milled mixture shows the presence of both In 2 O 3 phase and Mo element. The presence of broad peaks in the pattern confirms that the synthesized powders are nanosized. The X-ray diffraction of annealed samples at 600 • C shows the absence of Mo peaks revealing that the Mo was incorporated into the crystal lattices of In 2 O 3 . Interestingly, it was observed that the diffraction peaks were still broad in the annealed samples indicating the single phase at the nanoscale. From the XRD pattern, the calculated crystallite sizes were in the range of 12-18 nm. Magnetic properties of the synthesized Mo-doped In 2 O 3 nanopowders were examined and it was found that the obtained nanopowders possess diamagnetic properties.

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Synthesis, structure and magnetic properties of nano-sized CoFe<SUB align=right>2O<SUB align=right>4 material

Cited by 5 publications

References 0 publications

Effect of annealing on the structure and magnetic properties of mechanically milled TiO2–Fe2O3 mixture

Effect of annealing on the structure and magnetic properties of mechanically milled TiO2–Fe2O3 mixture

Structural and magnetic properties of mechanically milled TiO<SUB align=right>2-Fe<SUB align=right>2O<SUB align=right>3 mixture

Discrepancy of room temperature ferromagnetism in Mo-doped In 2 O 3

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