2005
DOI: 10.1016/j.jssc.2005.07.020
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Preparation and characterization of nanosize nickel-substituted cobalt ferrites (Co1−xNixFe2O4)

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Cited by 236 publications
(85 citation statements)
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“…Thus, with increasing concentrations of Ni 2+ , all the compositions studied here showed the formation of soft and friable agglomerates consisting of weak easily disintegrated bonds of irregular morphology and very fine porous particles. The average particle size was smaller than 50 nm, like that reported by Singhal et al 24 , and decreased slightly with the addition of nickel. 20 .…”
Section: Resultssupporting
confidence: 81%
See 1 more Smart Citation
“…Thus, with increasing concentrations of Ni 2+ , all the compositions studied here showed the formation of soft and friable agglomerates consisting of weak easily disintegrated bonds of irregular morphology and very fine porous particles. The average particle size was smaller than 50 nm, like that reported by Singhal et al 24 , and decreased slightly with the addition of nickel. 20 .…”
Section: Resultssupporting
confidence: 81%
“…The results are depicted in Figure 2. The intensities of the (220) and (440) planes are more sensitive to cations in tetrahedral and octahedral sites, respectively 23,24 . Ni 2+ and Co 2+ ions prefer octahedral sites, while Fe 3+ ions prefer both tetrahedral and octahedral sites.…”
Section: Resultsmentioning
confidence: 99%
“…The X-ray diffraction pattern reveals the formation of cubic spinel phase with minor reflections of Fe 2 O 3 phase. The 0.4 Ni substituted cobalt ferrite shows the largest crystallite size of 44 nm with highest magnetic moment 92.86 emu/gm, which is higher than the earlier reported value 21 using the aerosol method indicating that auto combustion technique may be a better synthesis method.…”
Section: Discussioncontrasting
confidence: 64%
“…20 Comparitively, all these reports show low values of magnetization as well as mismatch to the synthesized particle size. Ni is a ferromagnetic metal which magnetizes easily even at room temperature, hence to increase the magnetization value of the CoFe 2 O 4 , an attempt has been made to substitute the divalent Ni into the CoFe 2 O 4 .Singhal et al 21 have prepared the nanoparticles of the series of Ni substituted CoFe 2 O 4 by using the aerosol chemical route. They found that as the concentration of Ni into CoFe 2 O 4 matrix increases, particle size decreases and the saturation magnetization decreases.…”
Section: Introductionmentioning
confidence: 99%
“…They possess very low conductivity, which is one of the considerations for microwave applications. The conductivity greatly influences the dielectric [3][4][5][6][7] and magnetic behavior of ferrites [8,9]. This created considerable interest in many research workers for the development and potential applications of ferrites in the electronic industry [10][11][12].…”
Section: Introductionmentioning
confidence: 99%