Structural and Magnetoelectric Properties of a New W-Type Hexaferrite (Sr_0.85Ce_0.15Co₂Fe₁₆O_27-δ)

Abstract:

A new W-type hexaferrite (Sr_0.85Ce_0.15Co₂Fe₁₆O_27-δ) was synthesized through proteic sol-gel using coconut water as a solvent for the precursor salts. Structural analysis was carried out using an X-ray diffractometer (XRD). The XRD results showed that the resulting ceramic exhibited preferential orientations along the crystal planes in addition to lattice displacements. The magnetic properties evaluated using a vibrating sample magnetometer indicated a high saturation magnetization value and low coercive field and remnant magnetization values. The Curie temperature determined through differential scanning calorimetry was 473 oC. The electric resistivity value determined through complex impedance was similar to those already reported in the literature, thus promising the use of this hexaferrite in electronic and microwave device applications.

• Periodical: Advanced Materials Research (Volume 975)
• Pages: 263-267
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.975.263
• Online since: July 2014
• Authors: Bruna da Costa Andrade, Marcelo Andrade Macedo*
• Keywords: Curie Temperature, Electric Properties, Ferrimagnetism, Magnetic Property

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