Effect of La-Substituted Barium Hexaferrite on the Structural Characteristics and Magnetic Properties for Microwave Absorbing Material
Keywords:Barium hexaferrite, Ba1-xLaxFe12O19, La-substitution, Structural characteristics, Magnetic properties, Microwave absorbing material
AbstractBa1-xLaxFe12O19 with ion substitution La3+ (x = 0 â€“ 0.7) has been produced via the mechanical milling technique of the solid reaction method. Considering that Ba1-xLaxFe12O19 is expected to be used as a microwave absorbent, it is necessary to characterize its structural and magnetic features. The refinement results of the X-ray diffraction (XRD) data show that a single-phase hexagonal structure (space group P63/mmc) is obtained for x = 0 and xÂ = 1, while for the composition of x > 0.1 is multiphase. The lattice parameters and crystal volume decreased, whereas the lattice strain was found to advance with increasing La substitution in the sample. For x = 0.1, the crystallite size is constant while the lattice strain increases. Employing a scanning electron microscope (SEM), the observation of particle morphology shows that the single-phase (x = 0 and xÂ = 0.1) has a comparably unvarying particle size circulation, while for x > 0.1, different particle shapes and sizes are found. The saturation magnetization raises while the coercivity field reduces due to the substitution of La for x = 0.1. Furthermore, for x > 0.1, the saturation magnetization decreases while the coercivity field increases.
X. Shen, F. Song, J. Xiang, M. Liu, Y. Zhu, and Y. Wang, â€œShape anisotropy, exchangeâ€coupling interaction and microwave absorption of hard/soft nanocomposite ferrite microfibers,â€ J. Am. Ceram. Soc., vol. 95, no. 12, pp. 3863â€“3870, 2012.
B. F. Phelps, F. Liorzou, and D. L. Atherton, â€œInclusive model of ferromagnetic hysteresis,â€ IEEE Trans. Magn., vol. 38, no. 2, pp. 1326â€“1332, 2002.
R. C. Pullar, â€œHexagonal ferrites: a review of the synthesis, properties and applications of hexaferrite ceramics,â€ Prog. Mater. Sci., vol. 57, no. 7, pp. 1191â€“1334, 2012.
A. Bahadur et al., â€œMorphological and magnetic properties of BaFe12O19 nanoferrite: A promising microwave absorbing material,â€ Ceram. Int., vol. 43, no. 9, pp. 7346â€“7350, 2017.
Z. P. Wu et al., â€œElectromagnetic interference shielding of carbon nanotube macrofilms,â€ Scr. Mater., vol. 64, no. 9, pp. 809â€“812, 2011.
A. Kumar, S. S. Yadava, P. Gautam, A. Khare, and K. D. Mandal, â€œMagnetic and dielectric studies of barium hexaferrite (BaFe12O19) ceramic synthesized by chemical route,â€ J. Electroceramics, vol. 42, no. 1, pp. 47â€“56, 2019.
V. C. Chavan, S. E. Shirsath, M. L. Mane, R. H. Kadam, and S. S. More, â€œTransformation of hexagonal to mixed spinel crystal structure and magnetic properties of Co2+ substituted BaFe12O19,â€ J. Magn. Magn. Mater., vol. 398, pp. 32â€“37, 2016.
W. S. Castro, R. R. CorrÃªa, P. I. Paulim Filho, J. M. R. Mercury, and A. A. Cabral, â€œDielectric and magnetic characterization of barium hexaferrite ceramics,â€ Ceram. Int., vol. 41, no. 1, pp. 241â€“246, 2015.
J. R. Liu, M. Itoh, T. Horikawa, M. Itakura, N. Kuwano, and K. Machida, â€œComplex permittivity, permeability and electromagnetic wave absorption of Î±-Fe/C (amorphous) and Fe2B/C (amorphous) nanocomposites,â€ J. Phys. D. Appl. Phys., vol. 37, no. 19, p. 2737, 2004.
W. A. Adi and A. Manaf Ridwan, â€œAbsorption characteristics of the electromagnetic wave and magnetic properties of the La0.8Ba0.2FexMnÂ½(1-x)TiÂ½(1-x)O3 (x = 0.1-0.8) Perovskite system,â€ Int. J. Technol., vol. 5, pp. 887â€“897, 2017.
F. M. M. Pereira et al., â€œStructural and dielectric spectroscopy studies of the M-type barium strontium hexaferrite alloys (BaxSr1âˆ’ xFe12O19),â€ J. Mater. Sci. Mater. Electron., vol. 19, no. 7, pp. 627â€“638, 2008.
M. B. Kaynar, Åž. Ã–zcan, and S. I. Shah, â€œSynthesis and magnetic properties of nanocrystalline BaFe12O19,â€ Ceram. Int., vol. 41, no. 9, pp. 11257â€“11263, 2015.
R. E. El Shater, E. H. El-Ghazzawy, and M. K. El-Nimr, â€œStudy of the sintering temperature and the sintering time period effects on the structural and magnetic properties of M-type hexaferrite BaFe12O19,â€ J. Alloys Compd., vol. 739, pp. 327â€“334, 2018.
Ãœ. Ã–zgÃ¼r, Y. Alivov, and H. MorkoÃ§, â€œMicrowave ferrites, part 1: fundamental properties,â€ J. Mater. Sci. Mater. Electron., vol. 20, no. 9, pp. 789â€“834, 2009.
M. N. Ashiq, M. J. Iqbal, M. Najam-ul-Haq, P. H. Gomez, and A. M. Qureshi, â€œSynthesis, magnetic and dielectric properties of Erâ€“Ni doped Sr-hexaferrite nanomaterials for applications in High density recording media and microwave devices,â€ J. Magn. Magn. Mater., vol. 324, no. 1, pp. 15â€“19, 2012.
D. A. Vinnik et al., â€œTungsten substituted BaFe12O19 single crystal growth and characterization,â€ Mater. Chem. Phys., vol. 155, pp. 99â€“103, 2015.
Y. E. Gunanto, E. Jobiliong, and W. A. Adi, â€œComposition and phase analysis of nanocrystalline BaxSr1-xFe12O19 (x = 1.0; 0.6; and 0.4) by using general structure analysis system,â€ in AIP Conference Proceedings, 2016, vol. 1719, no. 1, p. 30019.
H. Nikmanesh, S. Hoghoghifard, and B. Hadi-Sichani, â€œStudy of the structural, magnetic, and microwave absorption properties of the simultaneous substitution of several cations in the barium hexaferrite structure,â€ J. Alloys Compd., vol. 775, pp. 1101â€“1108, 2019.
H. SÃ¶zeri, Z. Mehmedi, H. Kavas, and A. Baykal, â€œMagnetic and microwave properties of BaFe12O19 substituted with magnetic, non-magnetic and dielectric ions,â€ Ceram. Int., vol. 41, no. 8, pp. 9602â€“9609, 2015.
V. Zepf, Rare earth elements: a new approach to the nexus of supply, demand and use: exemplified along the use of neodymium in permanent magnets. Springer Science & Business Media, 2013.
W. A. Adi, S. Wardiyati, and S. H. Dewi, â€œNanoneedles of Lanthanum Oxide (La2O3): A Novel Functional Material for Microwave Absorber Material,â€ in IOP Conference Series: Materials Science and Engineering, 2017, vol. 202, no. 1, p. 12066.
Z. Pang, X. Zhang, B. Ding, D. Bao, and B. Han, â€œMicrostructure and magnetic microstructure of La+ Co doped strontium hexaferrites,â€ J. Alloys Compd., vol. 492, no. 1â€“2, pp. 691â€“694, 2010.
B. H. Toby, â€œEXPGUI, a graphical user interface for GSAS,â€ J. Appl. Crystallogr., vol. 34, pp. 210â€“213, 2001.
M. S. Idris and R. A. M. Osman, â€œStructure refinement strategy of Li-based complex oxides using GSAS-EXPGUI software package,â€ in Advanced Materials Research, 2013, vol. 795, pp. 479â€“482.
L. S. I. Liyanage, S. Kim, Y.-K. Hong, J.-H. Park, S. C. Erwin, and S.-G. Kim, â€œTheory of magnetic enhancement in strontium hexaferrite through Znâ€“Sn pair substitution,â€ J. Magn. Magn. Mater., vol. 348, pp. 75â€“81, 2013.
S. S. S. Afghahi, M. Jafarian, M. Salehi, and Y. Atassi, â€œImprovement of the performance of microwave X band absorbers based on pure and doped Ba-hexaferrite,â€ J. Magn. Magn. Mater., vol. 421, pp. 340â€“348, 2017.
D. Nath, F. Singh, and R. Das, â€œX-ray diffraction analysis by Williamson-Hall, Halder-Wagner and size-strain plot methods of CdSe nanoparticles-a comparative study,â€ Mater. Chem. Phys., vol. 239, p. 122021, 2020.
LicenseJournal of Magnetism and its Applications allows the author(s) to hold the copyright without restrictions. Finally, the journal allows the author(s) to retain publishing rights without restrictions.
- Authors are allowed to archive their submitted article in an open access repository
- Authors are allowed to archive the final published article in an open access repository with an acknowledgment of its initial publication in this journal
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 Generic License.