Structural, physical and magnetic evaluations of Ce-Zn substituted SrCo2 W-type hexaferrites prepared via sol gel auto combustion route
作者： Majid Niaz Akhtar , Muhammad Azhar Khan
DOI: 10.1016/J.CERAMINT.2018.04.104
关键词: Remanence 、 Analytical chemistry 、 Coercivity 、 Saturation (magnetic) 、 Anisotropy 、 Fourier transform infrared spectroscopy 、 Materials science 、 Sintering 、 Bohr magneton 、 Lattice constant
摘要: Abstract SrCo2 W-type hexagonal nanoferrites with composition SrCo2-xZnxCeyFe16-yO27 (whereas x = 0, 0.2, 0.4, 0.6, 0.8, 1.0 and y = 0, 0.02, 0.04, 0.06, 0.08, 0.1) were synthesized by sol-gel auto combustion method. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM) Vibrating sample magnetometer (VSM) used to find out the structural, vibrational, morphological magnetic properties of ferrites. Physical such as bulk density (Dbulk), (Dxrd) porosity (%P) W type ferrites samples calculated. Bulk decreased whereas increased Ce-Zn substitution in Single phase all are achieved at sintering temperature 1050 °C. Structural parameters lattice ‘a’ ‘c’ also Lattice parameter is found be substitutions. Force constants tetrahedral octahedral sites evaluated which confirm ferrite. FESEM images showed homogenous well crystallized higher Detailed remanence coercivity, saturation, Bohr magneton, initial permeability, magneto crystalline anisotropy constant (K) field (Ha) measured. Magnetic samples. The dependence Hc Ha on hexaferrites may due variations K Ms substituted Therefore, prepared appropriate amount metal cations suitable candidate for microwave devices high frequency applications.
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