Long Time Stability Investigation for Structural and Magnetic Properties of Ti-doped Barium Ferrite
Abstract
Barium hexaferrite (BHF) (BaFe12O19) and its substituted derivatives have been considered as the most potential magnetic candidates with considerable chemical stability and physiochemical characteristics. BHF with x ferrite ions substituted by titanium (Ti-doped BTHF) (BaTixFe12-xO19) (x=1 and x=3) was prepared from ferric oxide (Fe2O3), barium oxide (BaO), and titanium oxide (TiO2) of purity >98%. The materials were mixed with deionized water and then dried at 1100°C and 1200°C overnight. For the formation of BaFe12O19 phase, the mixture was annealed at a rate of 10°C/min in static air atmosphere until reaching 1200°C and then maintained for 10 h. Structural properties of these samples were measured using X-ray diffraction (XRD) and scanning electron microscopy, while magnetic properties were measured using vibrating sample magnetometer (VSM) device. Magnetic and structural characteristics are investigated after preserving Ti-doped BHF samples at room temperature and ambient conditions for 12 years. The samples are characterized using the same previous techniques to find out the possible effect of long period storage on their properties. The results showed that the storage process has little effect on these properties where the granular size increased due to increased oxidation. XRD tests also showed the absence of Ti at low ratios due to increased oxidation of ferrite. VSM results showed increased magnetic properties after storage due to increased iron oxide.
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References
C. Kittle. “Introduction to Solid State Physics”. 5th ed. New York: John Wiley and Sons, 1976.
Z. Yang, C. S. Wang, X. H. Li and H. X. Zeng. “(Zn.Ni.Ti) substituted Ba-ferrite particles with improved temperature coefficient of coersivity”. Materials Science and Engineering B, vol. 90, pp. 142-145, 2002.
G. Mendoza, K. K. Johal, H. Mancha, J. L. Escalante and M. M. Cisneros. “Magnetic properties of Zn-Sn substituted Ba-ferrite powders prepared by ball milling”. Materials Research Bulletin, vol. 36, pp. 2597-2603, 2001.
A. J. B. Fuller. “Ferrites of Microwave Frequencies”. London, United Kingdom: Peter Peregrinus, 1987, pp. 14-16.
M. B. Amin and J. R. Jams. “Tech. for utilization of hexagonal in radar absorbers”. Part 1. Radio and Electron Engineering, vol. 51, no. 5, Pp. 209-218, 1981.
J. Li, H. Zhang, Y. Liu and H. Yang. “Co-Ti co-substitution of M-type hexagonal barium ferrite”. Materials Research Express, vol. 2, no. 4, p. 046104, 2015.
Pamela Quiroz, Bernd Halbedel, Angel Bustamante, Juan C. González. “Effect of titanium ion substitution in the barium hexaferrite studied by Mössbauer spectroscopy and X-ray diffraction”. Hyperfine Interact, vol. 202, p. 106, Aug 2011.
B. Halbedel, D. Hülsenberg, Belau, St., Schadewald, U.: cfi/Ber. DKG vol. 82, no. 13, 182-188, 2005.
Nibruchnnay, Umberto “Microwave ferrite and application” Electro. Mater., Chap. 17, pp. 451,459,460, 1994.
Rohde and Schwarz. News 199/09, pp. 70-72, 2009.
P. A. Mariño-Castellanos, J. Anglada-Rivera, A. Cruz-Fuentes and R. Lora-Serrano. “Magnetic and microstructural properties of the Ti4+-doped barium hexaferrite”. Journal of Magnetism and Magnetic Materials, vol. 280, pp. 214-220, 2004.
V. A. M. Brabers, A. A. E. Stevens, J. H. J. Dalderop and Z. Simga. “Ultrasonic attenuation in a BaTiFe11O19 single crystal”. Journal of agnetism and Magnetic Materials, vol. 196-197, pp. 312-314, May 1999.
J. Matutes, S. Diaz, M. Mirabal and S. A Palomaress. “Synthesis by coperecipitation and study of Ba-hexaferrite powders”. Scripta Materialia, vol. 42, pp. 295-299, Aug 2000.
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