International Journal of Iron & Steel Society of Iran

International Journal of Iron & Steel Society of Iran

Magnetic and Structural Properties of SrFe12O19 Nanoparticles Synthesized by Co-precipitation- Ultrasonic Method for Iron and Steel Industry Applications

Document Type : Research Paper

Authors
Materials Engineering Group, Golpayegan College of Engineering, Isfahan University of Technology, Golpayegan, Iran
10.22034/ijissi.2026.2074328.1336
Abstract
In the modern iron and steel industry, the application of advanced and improved systems is a necessity. One of the materials that has a great role in this improvement is strontium hexaferrite oxide. In this research, pure strontium hexaferrite oxide (SrFe12O19) particles were synthesized using the chemical co-precipitation method. The synthesis was done with and without applying ultrasonic radiation (UT). The Rietveld refinement was applied to the X-ray diffraction patterns of the synthesized SrFe12O19 powders. The Rietveld refinement indicated the successful synthesis of a single-phase M-type hexagonal SrFe12O19 phase. SEM analysis results showed that when the ultrasonic radiation is applied, the particle and crystallite sizes vary. The obtained particles had an agglomerated semi-spherical morphology. Synthesized particles obtained without the application of UT (SFO) had a mean particle size of 108.5352nm. Application of UT radiation (UT-SFO) resulted in the reduction of the particle sizes to a mean value of 55.44±18.4nm. Magnetic properties showed that the saturation magnetization (Ms), remanent magnetization (Mr), and coercivity field (Hc) were 55.04, 29.54, and 2713.06 for the SFO sample. Values for the UTSFO sample are 47.09, 25.53, and 2750.14, respectively. The results indicated that the synthesized samples have a Mr/Ms of around 0.54 and are suitable for magnetic applications and can be used in the iron and steel industry.
Keywords

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