The Effect Of Zr+۴ and Mn+۲ Substited on the Structrual and magneticproperties of SrFe۱۲O۱۹

Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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ICC10_123

تاریخ نمایه سازی: 16 بهمن 1402

Abstract:

In this study nano particles of SrFe۱۲-x(Mn,Zr)x/۲O۱۹ (x=۰,۲,۳) have been synthesized by sol-gelauto combustion process. The effect of the substituted Zr+۴ and Mn+۲ on structure and magneticproperties of SrFe۱۲-x(Mn,Zr)x/۲O۱۹ have been investigated. The samples were characterized byvarious experimental techniques including X-ray diffraction (XRD), Fourier TransformInfrared Spectrometry (FTIR), Transmission electron microscope (TEM), Field emission gunscanning electron microscopy (FE-SEM) and Vibrating sample magnetometer (VSM). Theresults showed that M-type strontium hexaferrite phase for all samples have been formed. Thepresence of Zr-Mn substitution in the structure, decreased the coercivity (HC) from ۵۵۹۳.۶۰ Oeto ۳۲۸۲.۴۶ Oe and maximum magnetization (Mmax) from ۶۲.۶۰ emu/g to ۴۶.۱۵ emu/g,respectively. The mechanism of formation and variation in magnetic properties of the nanopowders had been explained

Authors

Z. Ghiami

Department of Materials Engineering ٫Najafabad Branch ٫Islamic Azad University٫P.O.Box ۵۱۷٫Isfahan ٫Iran

S.M Mirkazemi

Iran University of Science and Technology٫Tehran٫Iran

S Allamolhoda

Iran University of Science and Technology٫Tehran٫Iran