Study of infrared spectroscopy and elastic properties of fine and coarse grained nickel–cadmium ferrites

Modi, K. B.; Rangolia, M. K.; Chhantbar, M. C.; Joshi, H. H.

doi:10.1007/s10853-006-0929-3

Cited by 90 publications

(38 citation statements)

References 19 publications

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“…The values of Poisson's ratio (σ) were found to be constant (σ = 0.35) for all samples. Further these values lie in the range from −1 to 0.5 which is consistent with the theory of isotropic elasticity [33]. The Debye temperature was calculated employing the following formula reported by Raj et al [31] and listed in Table 4:…”

Section: Isrn Condensed Matter Physicssupporting

confidence: 73%

Structural and Elastic Properties of Li-Ni Ferrite

Mazen

Elmosalami

2011

ISRN Condensed Matter Physics

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Li-Nickel ferrites with the chemical formula Li 0.5−0.5x Ni x Fe 2.5−0.5x O 4 (0.0 ≤ x ≤ 1.0) have been prepared by the ceramic method. The spinel structure in homogenous state was realized by X-ray diffraction analysis. The lattice parameter has been determined for each composition and found to be nearly constant over the whole range of Ni concentration (= 0.83 nm ± 0.01). The cation distribution for each composition has been suggested. The experimental and theoretical lattice constants were found to be in good agreement with each other confirming the agreeability of the suggested cation distribution. The analysis of IR spectra indicates the presence of splitting in the absorption band due to the presence of small amounts of Fe 2+ ions in the ferrite system. The force constants for tetrahedral and octahedral sites have been determined. Young's modulus (E), rigidity modulus (G), bulk modulus (B), Debye temperature (θ D ), and transverse (V t ) and longitudinal (V l ) wave velocities have been determined. The variation of elastic moduli with composition has been interpreted in terms of binding forces between the atoms of spinal lattice.

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Section: Isrn Condensed Matter Physicssupporting

confidence: 73%

Structural and Elastic Properties of Li-Ni Ferrite

Mazen

Elmosalami

2011

ISRN Condensed Matter Physics

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“…The higher IR band υ 1 , generally observed in the range 600-550 cm -1 is caused by stretching vibration of the tetrahedral metaloxygen bond whereas the lower band υ 2 , usually observed in the range 450-385 cm -1 corresponds to the metal-oxygen vibrations in the octahedral sites [28]. It is indicated that the increase in size radius reduces the fundamental frequencies and therefore, the center frequency should shift toward lower frequency side [29]. FTIR study by Ishaque et al on NiFe 2-x Y x O 4 nanoparticles showed that the band υ 2 shifts to higher frequency range with increase in yttrium concentration, suggesting that Y 3+ ions with larger radius predominantly replace for smaller Fe 3+ ions in the octahedral sites [13].…”

Section: Icp-aes Xanes Ft-ir Sem and Tem Analysesmentioning

confidence: 98%

Influence of Y and La substitution on particle size, structural and magnetic properties of nanosized nickel ferrite prepared by using citrate precursor method

Anh

Loan

Duong

et al. 2015

Journal of Alloys and Compounds

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“…The lattice parameter increases due to the increase of cadmium content in the ferrites because of its higher ionic radius compared to other ions in the ferrites. Several researchers have studied the structural, electrical and magnetic properties of substituted ferrites like Ni-Co-Cu [1], Ni-Cd-Zn [12], Ni-Cd [11,[13][14][15], Ni-Cu [16], Mg-Cd [17] and Ni-Mn-Mg [18] mixed ferrites by different methods. However, the literature survey on Ni-Cd-Cu ferrites indicates that not much work has been done on these ferrites.…”

Section: Introductionmentioning

confidence: 99%