Structural properties of cobalt substituted barium hexaferrite nanoparticles prepared by a thermal treatment method
Abstract
A series of M-type hexagonal ferrites with BaCoxFe12−xO19 (x = 2.0, 3.0) composition were synthesized using a simple heat treatment method. The aqueous solution, containing metal nitrates and polyvinyle pyrrolidone (PVP) as a capping agent was used to prepare M-type barium hexferrite nanoparticles. The prepared hexaferrite particles were calcined at microwave frequency (2.45 GHz, power 900W, 5 min) as well as at 650 ˚ C temperature. The structural properties of the samples were investigated using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). XRD pattern shows the pure M-phase. The particle size of the powder prepared by this method ranged from 20 nm to 27 nm. The thermal properties of the sample were investigated by thermogravimetric Analysis (TGA), which confirmed the thermal stability of the barium hexaferrite sample prepared by the heat treatment method.
Supporting agencies: This work was carried out under DRS-SAP programme of UGC, Physics Department, Gujarat University, Navrangpura, Ahmedabad, India.
About the Authors
C. C. Chauhan
Institute of Technology, Nirma University
India
India
Department of Physics
Ahmedabad 382 481, Gujarat
R. B. Jotania
Gujarat University
India
India
Department of Physics, University School of Sciences
Navrangpura Ahmedabad 380 009, Gujarat
K. R. Jotania
The M. S. University of Baroda
India
India
Department of Physcis, Faculty of Science
Vadodara 390 002, Gujarat
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Review
For citations:
Chauhan C.C., Jotania R.B., Jotania K.R. Structural properties of cobalt substituted barium hexaferrite nanoparticles prepared by a thermal treatment method. Nanosystems: Physics, Chemistry, Mathematics. 2013;4(3):363-369.
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