Microstructure and Microwave Absorption Properties of Y-Substituted Ni-Zn Ferrites

Na Chen, Mingyuan Gu

Department of Pharmaceutical Science & Technology, College of Chemistry and Biology,.
State Key Laboratory of MMCs, Shanghai Jiaotong University, Shanghai, China.

DOI: 10.4236/ojmetal.2012.22006                

Abstract

The Yttrium ions substituted Ni-Zn ferrites powders were prepared using a sol-gel technique. The crystal structure, magnetic properties and microwave absorption properties of the Ni-Zn ferrites powders were studied by X-ray diffraction, vibrating sample magnetometer and vector network analyzer. The results show that the microwave absorption properties of the Ni-Zn ferrites can be improved effectively with the substitution of Y ions. The minimum reflection loss of the Yttrium ions substituted Ni-Zn powder reaches –34.8 dB, with the –20 dB bandwidth over 2 GHz. The Yttrium substitution can improve microwave absorption properties of Ni-Zn ferrite due to smaller grain dimension and the higher specific magnetization

Keywords

Nick-Zinc Ferrite; Sol-Gel Preparation; Magnetic Properties; Microwave Absorption

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	C. H. Peng, C. C Hwang, J. Wan, J. S. Tsai and S. Y. Chen, “MicrowaveAbsorbing Characteristics for the Composites of ThermalPlastic Polyurethane (TPU) Bonded NiZnFerrites Prepared by Combustion Synthesis Method,” Materials Science and Engineering B, Vol. 117, No. 1, 2005, pp. 2736. doi:10.1016/j.mseb.2004.10.022
[2]	H. Montiel, G. Alvarez, M. P. Gutierrez, R. Zamorano and R. Valenzuela, “Microwave Absorption in NiZn Ferrites through the Curie Transition,” Journal of Alloys and Compounds, Vol. 369, No. 12, 2004, pp. 141143. doi:10.1016/j.jallcom.2003.09.074
[3]	A. N. Yusoff, M. H. Abdullah, S. H. Ahmad, S. F. Jusoh, A. A. Mansor and S. A. A. hamid, “Electromagnetic and Absorption Properties of Some Microwave Absorbers,” Journal of Applied Physics, Vol. 92, No. 2, 2002, pp. 876882. doi:10.1063/1.1489092
[4]	T. Tsutaoka, “Frequency Dispersion of Complex Permeability in MnZn and NiZn Spinel Ferrites and Their Composite Materials,” Journal of Applied Physics, Vol. 93, No. 5, 2003, pp. 27892796. doi:10.1063/1.1542651
[5]	H. Gul, W. Ahmed and A. Maqsood, “Electrical and Magnetic Characterization of nanocrystalline NiZn Ferrite Synthesis by CoPrecipitation Route,” Journal of Magnetism and Magnetic Materials, Vol. 320, No. 34, 2008, pp. 270275. doi:10.1016/j.jmmm.2007.05.032
[6]	Y. Hwang, “Microwave Absorbing Properties of NiZn Ferrite Synthesized from Waste Iron Oxide Catalyst,” Materials Letters, Vol. 60, No. 27, 2006, pp. 32773280. doi:10.1016/j.matlet.2006.03.010
[7]	A. Verma, A. K. Saxena and D. C. Dube, “Microwave Permittivity and Permeability of FerritePolymer Thick Films,” Journal of Magnetism and. Magnetic Materials, Vol. 263, No. 12, 2003, pp. 228234. doi:10.1016/S03048853(02)01569X
[8]	R. C. O’Handley, “Modern Magnetic Materials—Princi ples and Applications,” Wiley, USA, 2000.
[9]	A. M. ElSayed, “Electrical Conductivity of NickelZinc and Cr Substituted NickelZinc Ferrites,” Materials Chemistry and Physics, Vol. 82, No. 3, 2003, pp. 583587. doi:10.1016/S02540584(03)003195
[10]	A. B Nawale, N. S. Kanhe, K. R. Patil, S. V. Bhoraskar, V. L. Mathe and A. K. Das, “Magnetic Properties of Thermal Plasma Synthesized Nanocrystalline Nickel Ferrite (NiFe2O4),” Journal of Alloys and Compounds, Vol. 509, No. 12, 2011, pp. 44044413. doi:10.1016/j.jallcom.2011.01.057
[11]	R. Valenzuela, F. Herbst and S. Ammar, “Ferromagnetic Resonance in NiZn Ferrite Nanoparticles in Different Aggregation States,” Journal of Magnetism and Magnetic Materials, 2012, In Press. doi:10.1016/j.jmmm.2012.02.051
[12]	G. Sun, J. Li, J. Sun and X. Yang, “The Influences of Zn2+ and Some RareEarth Ions on the Magnetic Properties of NickelZinc Ferrites,” Journal of Magnetism and. Magnetic Materials, Vol. 281, No. 23, 2004, pp. 173177. doi:10.1016/j.jmmm.2004.04.099
[13]	S. E. Jacobo, W. G. Fano and A. C. Razzitte, “The Effect of Rare Earth Substitution on the Magnetic Properties of Ni0.5Zn0.5MxFe2?xO4 (M: Rare Earth),” Physica B, Vol. 320, No. 14, 2002, pp. 261263. doi:10.1016/S09214526(02)007068
[14]	H. M. Musal Jr. and H. T. Hahn, ”ThinLayer Electromagnetic Absorber Design,” IEEE Transactions on Magnetics, Vol. 25, No.5, 1989, pp. 38513853. doi:10.1109/20.42454
[15]	C. Upadhyay, “Cation Distribution in Nanosized NiZn Ferrites,” Journal of Applied Physics, Vol. 95, 2004, pp. 57465746. doi:10.1063/1.1699501