نتایج جستجو برای: spinel ferrites

تعداد نتایج: 4867  

2012
Anshu Sharma Kusum Parmar R. K. Kotnala N. S. Negi

Cobalt doped Zinc ferrites, CoxZn1-xFe2O4, (x = 0, 0.2, 0.4, and 0.6) were prepared by chemical solution method using metallo-organic precursors. The crystalline structure, microstructure, magnetic and dielectric properties of the samples were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM) and impedance analyser respectively. All...

2015
Md. T. Rahman C. V. Ramana

Articles you may be interested in Dielectric relaxations and alternating current conductivity in manganese substituted cobalt ferrite Impedance spectroscopy study of strontium modified lead zirconate titanate ceramics Dielectric and magnetic properties of sol-gel-derived lead iron niobate ceramics Gadolinium (Gd) substituted cobalt ferrites (CoFe 2Àx Gd x O 4 , referred to CFGO) with variable G...

2017
Fahmeed Hyder S Manjura Hoque

Ferrite nanoparticles (F-NPs) can transform both cancer diagnostics and therapeutics. Superparamagnetic F-NPs exhibit high magnetic moment and susceptibility such that in presence of a static magnetic field transverse relaxation rate of water protons for MRI contrast is augmented to locate F-NPs (i.e., diagnostics) and exposed to an alternating magnetic field local temperature is increased to i...

Journal: :Materials Research-ibero-american Journal of Materials 2021

Zinc ferrite (ZnFe2O4) nanoparticles have attracted the attention of researchers because their unique chemical properties and particle-size-dependent magnetic properties. High-surface-area spinel ferrites numerous technical applications in areas such as high-density information storage, ferrofluids, catalysis. The coprecipitation technique is preferred method for preparing nanoscale ZnFe2O4 it ...

Journal: :Bibechana 2021

Cu substituted Ni in Ni0.5-xCuxZn0.5Fe2O4 (x = 0, 0.05, 0.1, 0.15 and 0.2) samples Zn Ni0.5Zn0.5−xCuxFe2O4 is synthesized using the sol-gel auto-combustion process. Recently, we have carried out their structural analysis XRD FTIR found a cubic spinel structure. In this paper, studied morphological compositional structure with help of Scanning Electron Microscope (SEM) attached an Energy Dispers...

Journal: :Processes 2022

Three-dimensional printing is one of the most promising areas additive manufacturing with a constantly growing range applications. One current tasks development new functional materials that would allow manufacture objects defined magnetic, electrical, and other properties. In this work, composite magnetic filaments for 3D tunable properties were produced from polylactic acid thermoplastic poly...

2017
Y. K. Dasan B. H. Guan M. H. Zahari L. K. Chuan

Lanthanum substituted Ni-Zn ferrite nanoparticles (Ni0.5Zn0.5LaxFe1-xO4; 0.00 ≤x≤ 1.00) synthesized by sol-gel method were presented. X-ray diffraction patterns reveal the typical single phase spinel cubic ferrite structure, with the traces of secondary phase for lanthanum substituted nanocrystals. In addition, the structural analysis also demonstrates that the average crystallite size varied i...

2012
Khalid Mujasam Batoo Mohammad Shahnawaze Ansari

Ferrite nanoparticles of basic composition Ni0.7-xZnxCu0.3Fe2O4 (0.0 ≤ x ≤ 0.2, x = 0.05) were synthesized through auto-combustion method and were characterized for structural properties using X-ray diffraction [XRD], scanning electron microscopy, transmission electron microscopy, and Fourier transform infrared spectroscopy [FT-IR]. XRD analysis of the powder samples sintered at 600°C for 4 h s...

2014
Nawal Kishore S. Mukherjee

In this work we prepare nanocrystalline mixed ferrites by equilibrated low entropy routes with generic formula of MnxNi1-xFe2O4. Two series of samples have been prepared where “x” varies as 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5 the samples have been prepared by chemical co-precipitation route. For the first calculated amount of salts of Mn, Fe and Ni were dissolved in deionized water and stirred for ...

2017
Bogdan K. Ostafiychuk Larysa S. Kaykan Julia S. Kaykan Bogdan Ya. Deputat Olena V. Shevchuk

Nanocrystalline lithium ferrite Li 0.5 Fe 1.7 Mg 0.8 O 4 powders were synthesized by the sol-gel auto-combustion method from the corresponding metal nitrates using citric acid as fuel.The results from XRD, SEM, and AC electrical conductivity studies are summarized as follows: The results of XRD analysis showed that all the samples were formed in single-phase cubic spinel structure at different ...

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