Effect of sintering temperature on structural, magnetic properties of lithium chromium ferrite

Patil, R. S.; Hankare, P.P.; Garadkar, K. M.; Sasikala, R.

doi:10.1016/j.jallcom.2012.01.025

Cited by 54 publications

(20 citation statements)

References 22 publications

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“…This was in agreement with the results of previous studies. 22,23 Furthermore, the obtained oxygen coordinate values were characteristic of a spinel-type structure. 24,25 The average crystallite sizes of the samples were obtained from XRD peaks using the Scherrer equation: 22…”

Section: Resultsmentioning

confidence: 83%

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Microstructural analysis, magnetic properties, magnetocaloric effect, and critical behaviors of Ni_0.6Cd_0.2Cu_0.2Fe₂O₄ ferrites prepared using the sol–gel method under different sintering temperatures

et al. 2019

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Section: Resultsmentioning

confidence: 83%

“…The D values clearly increased with increasing sintering temperature, in good agreement with previous reports. 22,23 The intensity ratio (I 220 / I 222 ) values are also shown in Table 1. The intensity of the (220) and (222) planes depends on the cation distribution in the tetrahedral (A) and octahedral sites (B), respectively.…”

Section: Resultsmentioning

confidence: 98%

Microstructural analysis, magnetic properties, magnetocaloric effect, and critical behaviors of Ni_0.6Cd_0.2Cu_0.2Fe₂O₄ ferrites prepared using the sol–gel method under different sintering temperatures

et al. 2019

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“…These bands are mainly dependent on Fe─O distances. [ 23 ] It is revealed that in normal spinel ferrites, both the bands depend on the nature of octahedral cations while to a lesser extent on tetrahedral ones. It is also observed that the frequency of the absorption bands increases with increase in unit cell volume.…”

Section: Resultsmentioning

confidence: 99%

Effect of Sintering Temperature on Structural and Morphological Properties of Mn‐Substituted Lithium Ferrite

Patil

Nikam

Patil

et al. 2020

Macromolecular Symposia

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Manganese‐substituted lithium ferrite is synthesized by sol–gel method. The sample is sintered at different temperatures in air. Their structural and morphological properties are studied by X‐ray diffraction, scanning electron microscopy, and FT‐IR techniques. The X‐ray diffraction patterns reveal that all the samples consist of nanocrystalline single cubic phase structure. The morphological studies of synthesized nanocrystalline samples are obtained from the scanning electron microscopy technique. It can be seen that, the average grain size is increased significantly with increasing the sintering temperature. FT‐IR studies indicate that the spinel phase formation takes place at higher sintering temperature.

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“…It is, therefore, desirable to investigate and understand the dependence of composition on magnetic/electric behavior of these ferrites. Ferrite nanoparticles show unusual magnetic properties such as single domain behavior and superparamagnetism which are not observed in bulk material [12,13]. Also, the resistivity of the ferrites at room temperature can vary from 10 -2 to 10 11 ohm-cm [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Effect of Zn dopant on Properties of Li ferrite Synthesized by Solution Combustion Method

Anu¹

2017

International Advanced Research Journal in Science, Engineering

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Herein, Urea assisted solution combustion method has been used for the preparation of stoichiometrically pure and Zn doped Li ferrites. Urea acts as a capping agent and helps in the formation of nanostructures. Solution combustion method helps easier formation of ferrites in a single step, at relatively lower temperature and in shorter time than the reported methods. Powder X-ray diffraction (XRD) studies with diffractometer indicate high purity, single phase spinel ferrites formation. Magnetic studies by vibratory sample magnetometer (VSM) reveal an increase in the magnitude of saturation magnetization with increasing Zn content up to x = 0.3. The Zn doped Li ferrite formed possess high dc-resistivity values which make them suitable for high-frequency applications. Apart from the academic interest involved, these investigations are of technological importance in the view of the fact that their end products (ferrites) play a key role as electro-magnetic materials in the modern industry.Keywords: Solution combustion method, powder X-ray diffraction, Powder X-ray diffraction, saturation magnetization, dc-resistivity. I INTRODUCTIONAlkali metal ferrites find extensive use in microwave components due to their attractive electrical and magnetic properties [1][2][3][4][5][6][7][8][9][10][11]. Ferrites have been reported as better electromagnetic materials than pure metals because of their low cost, high resistivity and ease of preparation. The properties of the ferrite materials, which decide the application areas, are generally governed by the chemical compositions along with the procedures followed for their preparation. Therefore, the molecular engineering of ferrite composition and employment of appropriate process parameters play a significant role in tailoring the material properties for a specific need. The properties of the ferrites can be modified by substituting the optimum amount of metal ions as dopant in the basic compositional formulae. It is, therefore, desirable to investigate and understand the dependence of composition on magnetic/electric behavior of these ferrites. Ferrite nanoparticles show unusual magnetic properties such as single domain behavior and superparamagnetism which are not observed in bulk material [12,13]. Also, the resistivity of the ferrites at room temperature can vary from 10 -2 to 10 11 ohm-cm [14][15][16]. The change in the resistivity is brought about by substitution of some appropriate metal ion in the metal site. To obtained sample with high resistivity, it is necessary to ensure that there are no ferrous ions in the stoichiometric ferrite. Therefore, chemical aspect has become the most important factor in the design and preparation of ferrite materials. Solution combustion method has been found to be the most suitable technique for the synthesis of a particular mixed ferrite composition. The properties of the final product (particle size, surface area and porosity) depend on the way the combustion is conducted. The departure of gases favours the desegregation of th...

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Effect of sintering temperature on structural, magnetic properties of lithium chromium ferrite

Cited by 54 publications

References 22 publications

Microstructural analysis, magnetic properties, magnetocaloric effect, and critical behaviors of Ni_0.6Cd_0.2Cu_0.2Fe₂O₄ ferrites prepared using the sol–gel method under different sintering temperatures

Microstructural analysis, magnetic properties, magnetocaloric effect, and critical behaviors of Ni_0.6Cd_0.2Cu_0.2Fe₂O₄ ferrites prepared using the sol–gel method under different sintering temperatures

Effect of Sintering Temperature on Structural and Morphological Properties of Mn‐Substituted Lithium Ferrite

Effect of Zn dopant on Properties of Li ferrite Synthesized by Solution Combustion Method

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Effect of sintering temperature on structural, magnetic properties of lithium chromium ferrite

Cited by 54 publications

References 22 publications

Microstructural analysis, magnetic properties, magnetocaloric effect, and critical behaviors of Ni0.6Cd0.2Cu0.2Fe2O4 ferrites prepared using the sol–gel method under different sintering temperatures

Microstructural analysis, magnetic properties, magnetocaloric effect, and critical behaviors of Ni0.6Cd0.2Cu0.2Fe2O4 ferrites prepared using the sol–gel method under different sintering temperatures

Effect of Sintering Temperature on Structural and Morphological Properties of Mn‐Substituted Lithium Ferrite

Effect of Zn dopant on Properties of Li ferrite Synthesized by Solution Combustion Method

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Microstructural analysis, magnetic properties, magnetocaloric effect, and critical behaviors of Ni_0.6Cd_0.2Cu_0.2Fe₂O₄ ferrites prepared using the sol–gel method under different sintering temperatures

Microstructural analysis, magnetic properties, magnetocaloric effect, and critical behaviors of Ni_0.6Cd_0.2Cu_0.2Fe₂O₄ ferrites prepared using the sol–gel method under different sintering temperatures