Analysis Crystal Structure and Magnetic Properties of Strontium Ferrite (SrO6Fe2O3) Made Using Powder Metallurg
DOI:
https://doi.org/10.32493/pjte.v7i1.33184Keywords:
Strontium Ferrite, Calcination, Crystal Structure, Remanence, CoercivityAbstract
Strontium ferrite in this study was obtained from a mixture of strontium carbonate and pure iron sand using the metarlurgi powder method. Variation in the composition of the composition of 1: 5 mol, 1: 6 mol, 1: 7 mol with a total mass of 30 grams, both of raw materials were milled by using a rotary ball mill with an additional 125 ml of distilled water for 6 hours. Then dried using the oven to become powder again. After that the sample was calcined by using a furnace at temperatures about 1000 ℃ and hold for 2 hours The sample was measured by using X-Ray Difraction (XRD) test to determine the crystal structure and the Vibrating Sample Magnetometer (VSM) test to determine the magnetic properties. Samples with a stoichiometric composition with mole ratio SrO: Fe2O3 = 1: 6 have the highest magnetic properties, namely with a remanence value = 48 emu / g or 0.3 Tesla and a coercivity of 2500 Oe. As well as the crystal structure obtained single phase SrO6Fe2O3 (SrFe12O19).References
S. Garehbaghi and A. Kianvash, “Effect of various parameters on the microstructure and magnetic properties of sintered Sr-hexaferrite,†Results Phys., vol. 12, pp. 1559–1568, 2019, doi: https://doi.org/10.1016/j.rinp.2019.01.038.
P. Jing et al., “Width-controlled M-type hexagonal strontium ferrite (SrFe12O19) nanoribbons with high saturation magnetization and superior coercivity synthesized by electrospinning,†Sci. Rep., vol. 5, no. 15089, pp. 1–10, 2015, doi: https://doi.org/10.1038/srep15089.
B. Liu, S. Zhang, B.-M. Steenari, and C. Ekberg, “Controlling the Composition and Magnetic Properties of Nano-SrFe12O19 Powder Synthesized from Oily Cold Mill Sludge by the Citrate Precursor Method,†Mater. (Basel, Switzerland), vol. 12, no. 8, p. 1250, 2019, doi: https://doi.org/10.3390/ma12081250
A. Verma, O. P. Pandey, and P. Sharma, “Strontium ferrite permanent magnet-An overview,†Indian J. Eng. Mater. Sci., vol. 7, no. 5–6, pp. 364–369, 2000.
M. Bahgat, F. M. Awan, and H. A. Hanafy, “The Influence of Reaction Parameters on Magnetic Properties of Synthesized Strontium Ferrite,†Int. J. Mater. Metall. Eng., vol. 9, no. 8, pp. 1043–1047, 2015, doi:
https://doi.org/10.5281/zenodo.1109083.
P. Sardjono, Suprapedi, Muljadi, and N. R. Djauhari, “Microstructure, Physical Properties, and Magnetic Flux Density Analysis of Permanent Magnet BaFe12O19 using Milling and Sintering Preparation Methods,†J. Phys. Conf. Ser., vol. 739, no. 012089, pp. 1–6, 2016, doi: https://doi.org/10.1088/1742-6596/739/1/012089.
B. S. Zlatkov, M. V. Nikolic, V. Zeljkovic, N. Obradovic, V. B. Pavlovic, and O. Aleksic, “Analysis and modeling of sintering of Sr-hexaferrite produced by PIM technology,†Sci. Sinter., vol. 43, no. 1, pp. 9–20, 2011, doi: https://doi.org/10.2298/SOS1101009Z.
D. Drummer and S. Messingschlager, “Material Characterization of Strontium Ferrite Powders for Producing Sintered Magnets by Ceramic Injection Molding (MagnetPIM),†Adv. Mater. Sci. Eng., vol. 2014, no. 651062, pp. 1–8, 2014, doi: https://doi.org/10.1155/2014/651062.
M. G. Hasab and Z. Shariati, “Magnetic Properties of Sr-Ferrite Nano-Powder Synthesized by Sol-Gel AutoCombustion Method,†Int. J. Mater. Metall. Eng., vol. 8, no. 10, pp. 1122–1125, 2014, doi:
https://doi.org/10.5281/zenodo.1096453.
R. S. Azis et al., “Influence of pH Adjustment Parameter for Sol–Gel Modification on Structural, Microstructure, and Magnetic Properties of Nanocrystalline Strontium Ferrite,†Nanoscale Res. Lett., vol. 13, no. 160, pp. 1–13, 2018, doi: https://doi.org/10.1186/s11671-018-2562-x
