Structural, Magnetic and Dielectric Properties of Sr-M Hexaferrite Nanoparticles Prepared using a Reverse Micelles Route

Abstract

Hexaferrite materials are considered as a magnetic material, which can be used as a permanent memory storage devices. Here micro
emulsion through reverse micelle route has been used in order to obtain homogeneous nano sized SrFe12O19 hexaferrite particles at very low temperature (500 ºC). Synthesized sample was then characterized with using Thermo Gravimetric Analysis (TGA), Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffractogram (XRD) and Scanning Electron Micrographs (SEM). A very negligible weight loss (~6%) is observed by TGA, which shows that the hexaferrite sample prepared by this route is highly thermodynamically stable. It is also observed that the particles are uniform, nano sized and homogeneous. And the calcinations temperature is very low (500° C) compared to other conventional methods.