Title :
Effect of Cerium (Ce3+) doping on structural, magnetic and dielectric properties of Barium Ferrite (BaFe12O19)
Author :
Vakil, Z. ; Kumar, A. ; Jain, A. ; Gupta, K.M. ; Najim, Mohd ; Singh, D.
Author_Institution :
Appl. Mech. Dept., Motilal Nehru Nat. Inst. of Technol., Allahabad, India
Abstract :
Ce3+-substituted barium ferrite powder with chemical composition BaCexFe12-xO19 (where x= 0.2 and 0.8) have been synthesized by using sol-gel auto combustion. The X-ray diffractometer (XRD) patterns show that with the increase Ce3+ content, the lattice constants (a and c) increased. SEM images show the formation of hexagonal platelet like structure. Magnetic measurements show the increase in magnetic saturation (Ms) and remenant magnetization (Mr) to 56.68emu/g and 29.66emu/g respectively. The coercivity (Hc) decreased to 3357.26Oe with increase in compositions from x=0.2 to 0.8. The dielectric behavior of synthesized barium ferrite powders were measured by the vector network analyzer (VNA) for the X-band (8.2-12.4 GHz) frequency range.
Keywords :
X-ray diffraction; barium compounds; cerium compounds; coercive force; combustion synthesis; doping; ferrites; lattice constants; permittivity; powders; remanence; scanning electron microscopy; sol-gel processing; BaCexFe12-xO19; SEM; X-band freqnency range; X-ray diffractometry; XRD; barium ferrite powder; cerium doping; chemical composition; coercivity; dielectric properties; hexagonal platelet like structure; lattice constants; magnetic properties; magnetic saturation; remenant magnetization; sol-gel autocombustion; structural properties; vector network analyzer; Annealing; Frequency measurement; Magnetic analysis; Magnetic properties; Magnetic resonance imaging; Permeability; Saturation magnetization; Dielectric; Ferrites; Magnetic; Sol-gel;
Conference_Titel :
Electrical, Computer and Communication Technologies (ICECCT), 2015 IEEE International Conference on
Conference_Location :
Coimbatore
Print_ISBN :
978-1-4799-6084-2
DOI :
10.1109/ICECCT.2015.7225982
