Preparation and Optimization of Alumina Templates for Synthesis of Strontium Ferrite Nanowires and Comparing them with Strontium Ferrite Nanopowders Synthesized with Sol Gel Method

Authors

1 1. Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran.

2 2. Department of Materials Engineering, Malek Ashtar University of Technology, Shahin Shahr, Iran.

Abstract

In this research, ordered porous anodic templates with 30 nm diameter and 15 µm thickness were prepared by using double anodization process. Dip coating method was employed to synthesize strontium ferrite in the form of nanowires in sol dilution. Ferrite nanopowders were also synthesized using sol gel method. The characterization of the nanostructures were examined by X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM) and Energy Dispersive Spectroscopy (EDS). Hysteresis loops of nanopowders and nanowires, parallel and perpendicular to the wires axes, were measured by Superconducting Quantom Interference Device (SQUID). The results showed that double anodization in 0.3 M  oxalic acid at 4 oC with a single anodization for 12 hours could produce ordered template. Dip coating in 80 oC  for two hours could form fine and uniform strontium ferrite nanowires. The produced material showed parallel anisotropy.
 

Keywords

References

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Journal of Advanced Materials in Engineering (Esteghlal)
Volume 36, Issue 3
November 2017
Pages 11-22

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