Study of magnetic properties of NiZnCu ferrite synthesized by Pechini method and solid-state reactions - G2Elab-Electronique de puissance
Article Dans Une Revue AIP Advances Année : 2018

Study of magnetic properties of NiZnCu ferrite synthesized by Pechini method and solid-state reactions

Résumé

Ni-Zn-Cu ferrites are exhibiting excellent magnetic properties at large frequencies and are consequently produced as low-loss magnetic materials used for magnetic components in power electronics. Here we present an experimental study of (Ni$_{0.31}$Zn$_{0.49}$Cu$_{0.20}$)$_{0.979}$Co$_{0.021}$Fe$_{1.9-d}$O$_4$ ferrites synthesized by the Pechini type sol-gel method. Their structural and magnetic properties are characterized and compared to the ones of reference ferrites synthesized by classical solid-state reactions. Optimized parameters for Pechini method allow obtaining comparable low magnetic core-losses for both synthesis methods. The cores obtained by this sol-gel method present higher static permeability and lower coercive field than the ones obtained by classical solid-state reactions. Results suggest that the microstructure of ferrites synthesized by Pechini method can be considered as a promising alternative route for the design of low-loss magnetic components.

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Matériaux
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hal-01622594 , version 1 (28-08-2024)

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Gaëlla Frajer, Mathieu Salaün, Gérard Delette, Hervé Chazal, Olivier Isnard. Study of magnetic properties of NiZnCu ferrite synthesized by Pechini method and solid-state reactions. AIP Advances, 2018, 8 (4), pp.047801. ⟨10.1063/1.4994035⟩. ⟨hal-01622594⟩
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