EFFECT OFpH VALUE AND CALCINATION TEMPERATURE ON STRUCTURE AND MAGNETIC PROPERTIES OF STRONTIUM HEXAFERRITE THIN FILM

A. Shanaghi ()
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A. Shanaghi: Young Researchers Club, Arak Branch, Islamic Azad University, Arak, Iran

Surface Review and Letters (SRL), 2012, vol. 19, issue 01, 1-5

Abstract: Strontium hexaferrite was widely used in the fabrication of commercial permanent magnets and certain microwave devices. In this study, the strontium hexaferrite nanoparticle coatings were prepared by sol–gel method and using spin coating process on silicon substrate, then the effect of pH value, such as 5, 7 and 9, and calcination temperatures, such as 600°C, 800°C, and 1000°C, on structural and magnetic properties of strontium hexaferrite thin films were investigated by XRD, SEM and VSM measurements. The maximum saturation magnetization value of 57.43 emu/g and coercivity value of 3908 Oe were achieved for the thin film with crystallite size approximately 41 nm, prepared at pH value of 7 and calcinations temperature of 800°C.

Keywords: Strontium hexaferrite; sol–gel method; thin film; calcination temperature (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1142/S0218625X12500047

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