Investigation of Nanostructure and Magnetic Properties of Nanocrystalline NiZnCu Ferrites Synthesized by Sol-Gel Method

Abstract:

Nanocrystalline material of ferrites with composition Ni_0.5Zn_0.35Cu_0.15Fe₂O₄ was successfully synthesized by sol-gel method. This paper investigates nanostructure and magnetic properties of nanocrystaline material Ni_0.5Zn_0.35Cu_0.15Fe₂O_4. Crystallite size, intensity,d-spacing and lattice parameters of material were investigated by using X-Ray diffractometer (XRD). While nanostructure, size, shape, surface morphology and topography of Ni_0.5Zn_0.35Cu_0.15Fe₂O₄ were examined by variable pressure field emission scanning electron microscope (VP-FESEM) SUPRA 55VP. Magnetic properties was investigated using vibrating sample magnetometer (VSM). According to thermo gravimetric analysis (TGA) result, it was found that after temperature 600^oC there is no more weight loss detected and it was considered as minimum calcination temperature. XRD result shows that the samples is in single-phase cubic spinel structure. Crystallite size of the material is in range of 42.3-163.7nm. Highest intensity was 88.89 arb.units at highest calcination temperature 900^oC. The value of d-spacing and FWHM decrease with increasing calcination temperature. Lattice paramenters decrease in the range of 8.4040-8.2458^oA. VP-FESEM analysis shows that grain size increase by increasing calcination temperature. Grain size of the material is in the range of 47.6-506.9nm with cubic structure of the Ni_0.5Zn_0.35Cu_0.15Fe₂O_4. VSM result shows that the highest value of magnetic saturation was at 152.8emu/g. The best value of coercive force (Hc) was in 31.8Oe and magnetic remanence (Mr) was in 2.6emu/g.

• Periodical: Applied Mechanics and Materials (Volumes 754-755)
• Pages: 1169-1174
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.754-755.1169
• Online since: April 2015
• Authors: Prengki Pransisco, Afza Shafie, Beh Hoe Guan
• Keywords: Ferrite, Magnetic Nanomaterial, Nanostructure

References

[1] M. A. Gabal, A. M. Asiri, and Y. M. Alangari, Ceramic International 37, 2625–2630 (2011).

[2] P. K. Roy and J. Bera, Journal of Material Processing Technology 197, 279–283 (2008).

[3] P. K. Roy and J. Bera, Journal of Material Processing Technology 7, 279–283 (2007).

[4] H. Su, H. Zhang, X. Tang, Z. Zhong, and Y. Jing, Material Science Engineering B 162, 22–25 (2009).

[5] J. Azadmanjiri, H. K. Salehani, M. R. Barati, and F. Farzan, Material Letters 61, 84–87 (2007).

[6] S. Nasir, A. S. Saleemi, and M. Anis-ur-rehman, Journal of Alloys and Compound 572, 170–174 (2013).

[7] P. K. Roy, influence of substitutions and sintering aids on structural and electromagnetic properties of NiCuZn ferrite, Ph.D. Thesis, National Institute of Technology Rourkela, (2009).

[8] A. V Vidyadhar, International Nano Letters a Springger Open Journal 329, 1–8 (2013).

[9] D. G. Chen, X. G. Tang, J. B. Wu, W. Zhang, Q. X. Liu, and Y. P. Jiang, Journal Magnetic and Magnetic Material 323, 1717–1721 (2011).

[10] M. George, A. Mary, S. S. Nair, P. A. Joy, and M. R. Anantharaman, Journal of Alloy and Compound 302, 190–195 (2006).