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2011•Journal of Functional BiomaterialsOpen access

Synthesis and magnetoelectric properties of zinc ferrite

Lihu Liu

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Abstract

Zinc ferrite powders were prepared by chemical coprecipitation.The themal decomposition,phase composition,microstructure,magnetic properties and dielectric constant of zinc ferrite were characterized by TG-DTA,XRD,SEM,VSM and PNA techniques.The results showed that,with the calcination temperature increased,particle size of zinc ferrite powders increased and magnetism strengthened.Zinc ferrite massives of spinel structure had a negative temperature coefficient of resistivity,moreover,with the calcination temperature increased,dielectric constant decreased.

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Zinc ferrite powders were prepared by chemical coprecipitation.The themal decomposition,phase composition,microstructure,magnetic properties and dielectric constant of zinc ferrite were characterized by TG-DTA,XRD,SEM,VSM and PNA techniques.The results showed that,with the calcination temperature increased,particle size of zinc ferrite powders increased and magnetism strengthened.Zinc ferrite massives of spinel structure had a negative temperature coefficient of resistivity,moreover,with the calcination temperature increased,dielectric constant decreased.

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Available abstract

Zinc ferrite powders were prepared by chemical coprecipitation.The themal decomposition,phase composition,microstructure,magnetic properties and dielectric constant of zinc ferrite were characterized by TG-DTA,XRD,SEM,VSM and PNA techniques.The results showed that,with the calcination temperature increased,particle size of zinc ferrite powders increased and magnetism strengthened.Zinc ferrite massives of spinel structure had a negative temperature coefficient of resistivity,moreover,with the calcination temperature increased,dielectric constant decreased.

Key concepts: Materials science, Ferrite (magnet), Zinc ferrite, Calcination, Spinel, Coprecipitation, Zinc, Dielectric

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