Comparing the Structural and Electrical Properties of Barium Hexaferrite after Substituting Co-Sn and Zn -Sn
Vaishali Soman, Priyadarshini Indira Gandhi College of Engineering, Nagpur; Vijay Soman ,S. M. Mohota Science College, Nagpur
Magnetoplumbite, BaFe10.4Co+2.8Sn+4.8O19, BaFe10.4Zn+2.8Sn+4.8O19, Electrical Conductivity, Activation Energy
Barium Hex ferrite (BaFe12O19 ) is widely used in recording media and as permanent magnets. The Fe ion is partially substituted by Co-Sn and Zn-Sn to get BaFe10.4Co+2.8Sn+4.8O19 and BaFe10.4Zn+2.8Sn+4.8O19 which are prepared by solid state diffusion method. Several possible site distributions and an electron transfer may occur. The identification of the compounds is done by X-ray diffraction. They are found to have single phase magnetoplumbite structure. Electrical properties are studied and electrical conductivity study shows that Cobalt substituted compound has more electrical conductivity than Zinc substituted compound. The activation energies of both the compounds are also calculated. The activation energy of Cobalt substituted compound is less than that of zinc substituted compound. Also conductivity increases with rise in temperature which shows semiconducting nature of the newly synthesized samples.
-
[1] Kittele C. Introduction to solid state physics.
[2] M. Ahmad, F. Aen,, A. Islam, S. Niazi, M. Rana, (2011). Structural, physical magnetic and electrical properties of La- substituted W type hexagonal ferrites. Ceramics International 37, 3691-3696.
[3] J. Dho, E. Lee, J. Park, N . Hur, (2005). Effects of the grain boundary on the coercivity of barium ferrite BaFe 12O19 . Journal of Magnetism and Magnetic Materials 285, 164-168.
[4] C. Dube, S. Kashyap, D. Pandya, D. Dube, (2009). Dielectric and magnetic properties of ZnTi substituted M-type barium hexaferrite. Physics Status Solidi A 206, 2627-2631.
[5] Vaishali Soman, M. D. Mehare (2016). Structural and Electrical Properties of Co-Sn substituted BaFe12O19. , 6, 01-03
[6] Y. Liu, M. Drew, Y. Liu, J. Wang, M. Zhang, (2010). Preparation, characterization and magnetic properties of the doped barium hexaferrites BaFe 12-2x Co x/2 Zn x/2 SnxO19 , x = 0.0-2.0. Journal of Magnetism and Magnetic Materials 322, 814-818.
[7] K. Mallick, P. Shepherd, R. Green, (2007). Dielectric properties of M-type barium hexaferrite prepared by co-precipitation. Journal of European Ceramic Society 27, 2045-2052.
[8] U. Topal, H. Ozkan, H. Sozeri, (2004). Synthesis and characterization of Nano crystalline BaFe12O19 obtained at 850 °C by using ammonium nitrate melt. Journal of magnetism and magnetic materials 284, 416-422.
[9] K. Wagner, 1913. Ann. Phys. (Leipzig) 40, 817.
Paper ID: GRDJEV01I100070
Published in: Volume : 1, Issue : 10
Publication Date: 2016-10-01
Page(s): 103 - 105
Published in: Volume : 1, Issue : 10
Publication Date: 2016-10-01
Page(s): 103 - 105