The influence of sintering temperature on the crystal structure, electric and magnetic properties of Ba(2-X)Nd(X)Fe2O5 composite
DOI:
https://doi.org/10.11113/mjfas.v15n3.1176Keywords:
Ba(2-x)Nd(x)Fe2O5, X-ray diffraction, Williamson-hall method, AC conductivity, permittivity, magnetic propertyAbstract
Magnetic composite material of Ba(2-x)Nd(x)Fe2O5 is used to make electromagnetic wave absorbers. The Ba(2-x)Nd(x)Fe2O5 (x = 0 and 0.1) system was synthesized by using solid state reaction method. The Ba(2-x)Nd(x)Fe2O5 system was made with mixture compound of BaCO3, Nd2O3 and Fe2O3 powders with a specific weight ratio, then continued to the milling process and heat treatment at different sintering temperatures. XRD (X-ray diffraction) was conducted for phase identification and to determination of the crystallite size and strain. The study on dielectric and magnetic properties was carried out by using LCR meter and VSM (vibrating sample magnetometer), respectively. The XRD results indicated that the main phase of Ba2Fe2O5 was best resulted at 1000 0C. Dielectric properties, such as AC conductivity and permittivity as a function of the frequency were studied for those best resulted samples. It is found that the substitution of Nd3+ enhances both of the AC conductivity and permittivity due to the changes of the charge carriers (so) and the hoping electron between Fe2+ and Fe3+ ions in the doped system. The M-H curves as the results of the magnetic measurement showed the sharp enhancement of the coercivity (Hc) and the slight reduction in the saturation magnetization (Ms) along with the substitution of the Nd3+.
References
Sebayang, P. and Muljadi. 2011. Kajian struktur mikro terhadap sifat magnetik pada magnet permanen Ba0.6Fe2O3. Telaah Jurnal Ilmu Pengetahuan dan Teknologi 29(2), 55-62.
Molaei, M. J., Ataie, A., Raygan, S., Picken, S. J., Mendes, E., Tichelaar, F. D. 2012. Synthesis and characterization of BaFe12O19/Fe3O4 and BaFe12O19/Fe/Fe3O4 magntic nanocomposite. Powder Technology 211, 292-295.
Fujishiro, F., Fukasawa, K., and Hashimoto, T. 2011. CO2 absorption and desorption properties of single phase Ba2Fe2O5 and analysis of their mechanism using thermodynamic calculation, Journal American Ceramic Society 94(11), 3675–3678.
Fujishiro, F., and Nakazawa, Y. 2014. Reversible reaction with CO2 and control of CO2 absorption/desorption properties of Ba2(Fe1-xInx)2O5 solid solutions, Journal American Ceramic Society 97(10), 3034–3036.
Duggal, S., and Aul, G. D. 2014. Review on effect of electric permittivity and magnetic pearbility over microwive absorbing materials at low frequencies. International Journal of Engineering and Advance Technology 3(5), 12-19.
Priyono, and Manaf, A. 2010. Material magnetik barium heksaferit tipe-M untuk material anti radar pada frekuensi S-band. Jurnal Sains Materi Indonesia 11(2), 75-78.
Singh, A., Narang, S. B., Singh, K., Pandey, O. P., Kotnala, R. K. 2010. Electrical and magnetic properties of rare earth substituted strontium hexaferrites. Journal of Ceramic Processing Research 11(2), 241-249.
Katoch, A., Singh, T., Sandhu, B. S. 2013. Influence of doping of rare earth ion(RE=La) on structural, electrical and dielectric properties of SrM-hexaferrite. International Journal of Research in Advent Technology 1(5),456-465.
Singh, N. K., Kumar, P., Radheshyam, R. 2011. Comparative study of structure, dielecctric and electrical behavior of Ba(Fe0.5Nb0.5)O3 ceramics and their solid solution with BaTiO3. Advance Materials Letters 2(3), 200-205.
Mulyawan, A., Adi, W. A., Yunasfi. 2018. Raman spectroscopy study, magnetic and microwave absorbing properties of modified barium strontium monoferrite Ba(1-x)Sr(x)Fe2O4. Malaysian Journal of Fundamental and Applied Sciences 14(1), 73-77.
Srikrishna Ramya, S. I., Mahadevan, C. K. 2014. Effect of calcination on the electrical properties and quantum confinement of Fe2O3 nanoparticle. International Journal of Research in Engineering and Technology 3(3), 570-573.
Kanagaraj, M., Sathishkumar, P., Selvan, G. K., Kokila, I. P., Arumugam, S. 2014. Structural and magnetic properties of CuFe2O4 as-prepared and thermally treated spinel nanoferrites. Indian Journal Pure & Applied Physic 52(2), 124-130.
Khorsand Zak, A., Majid, W. H. A., Abrishami, M. E., Yousefi, R., 2011. X-ray analysis of ZnO nanoparticle by Williamson-Hall and size-strain plot method. Solid State Science 13(1), 251-258.
Padma, P., and Yashonat, Y. 2006. Ionic conduction in the solid state. Journal of Chemical Science 118(1), 134-154.
Arunkumar, A., Vanidha, D. Oudayakumar, K. Rajagopan, S., Kannan, R. 2013. Metallic magnetism and change of conductivity in the nano to bulk transition of cobalt ferrite. Journal Applied Physics 114,183905.
Nongjai, R., Khan, S., Asokan, K., Ahmed, H., Khan, I. 2012. Magnetic and electrical properties of In doped cobalt ferrite nanoparticles. Journal Applied Physics 112(8), 084321.
Pandya, R. J., Joshi, U. S., Caltun, O. F. 2015. Microstructural and electrical properties of barium strontium titanate and nickel zinc ferrite composites. Procedia Materials Science 10, 168-175.
Cong-Ju, L., Bin, W., Jiao-Na, W. 2012. Magnetic and microwave absorbing properties of electrospun Ba(1-x)La(x)Fe12O19 nanofibers. Journal of Magnetism and Magnetic Materials 324(7), 1305-1311.
