Influence of an Anionic Surfactant Addition on the Structural, Microstructural, Magnetic and Dielectric Properties of Strontium-Copper Hexaferrites



Influence of an Anionic Surfactant Addition on the Structural, Microstructural, Magnetic and Dielectric Properties of Strontium-Copper Hexaferrites

R.A. Nandotaria, R.B. Jotania, C.S. Sandhu, S.E. Shirsath, K.M. Batoo

The influence of surfactant addition (SDS 1g, 2g, 3g) on structural, microstructural, magnetic and dielectric properties of Sr2Cu2Fe12O22 hexaferrites, prepared using a coprecipitation method was investigated. XRD analysis show presence of M, Y and α-Fe2O3 phases. SEM micrograph of pure sample shows agglomerated spongy grains; while the SDS-1g sample shows plate like hexagonal structure. TEM confirms the formation of nano-particles. The Ms falls from 45 to 31.47 emu/g, while Hc was found to increase from 75 to 500 Oe but Mr/Ms < 0.5. The dielectric properties show normal behavior with respect to frequency. Keywords
Hexaferrite, XRD, SEM, TEM, Dielectric Properties

Published online 4/20/2018, 22 pages


Part of the book on Magnetic Oxides and Composites

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