Advanced Ceramics Progress

Advanced Ceramics Progress

The Influence of Diameter and Morphology on Magnetic Properties of Strontium Ferrite Nanofibers

Document Type : Original Research Article

Authors
Mahdieh Akbari Gandomani 1
Ali Ghasemi 2
Shahab Torkian 3
Zahra Rahmani Boldaji 1
1 Master, Department of Materials Engineering, Malek Ashtar University of Technology, Shahin shahr, Isfahan, Iran.
2 Professor, Department of Materials Engineering, Malek Ashtar University of Technology, Shahin shahr, Isfahan, Iran.
3 Assistant Professor, Department of Materials Engineering, Malek Ashtar University of Technology, Shahin shahr, Isfahan, Iran.
10.30501/acp.2024.486473.1168
Abstract
Due to the wide range of applications of strontium ferrite in various industries and the increasing demand for lightweight devices with enhanced magnetic properties, this study aims to fabricate and optimize the magnetic performance of strontium ferrite nanofibers using the electrospinning method. The purpose of this research is to investigate the effects of different polyvinylpyrrolidone (PVP) concentrations and electrospinning parameters—such as applied voltage, feed rate, and the distance between the collector and nozzle—on the microstructure and magnetic properties of the nanofibers. The results of energy-dispersive spectroscopy (EDS) confirmed the presence of Fe, O, and Sr elements, while X-ray diffraction (XRD) analysis indicated the successful synthesis of single-phase strontium ferrite. Field-emission scanning electron microscopy (FE-SEM) images showed that optimizing the electrospinning parameters resulted in nanofibers with diameters of less than 100 nm and considerable lengths. Vibrating sample magnetometry (VSM) analysis of the optimized sample yielded a saturation magnetization of 60 A·m²/kg, residual magnetization of 23 A·m²/kg, and a coercivity of 4.29×10⁵ A/m. The high coercivity is attributed to shape anisotropy in the nanofibers. These results demonstrate that, by carefully adjusting electrospinning parameters, strontium ferrite nanofibers with desirable magnetic properties can be successfully fabricated.
Keywords
Ceramic Nanofibers
SrFe12O19
Electrospinning
Magnetic Ceramics
Nanomaterials
Subjects
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  • Receive Date 01 November 2024
  • Revise Date 23 November 2024
  • Accept Date 29 December 2024