INTECIN 20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
artículos
Título:
Structural and electromagnetic properties of yttrium-substituted Ni?Zn ferrites
Autor/es:
JACOBO SILVIA; PAULA BERCOFF
Revista:
CERAMICS INTERNATIONAL
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2016 vol. 42 p. 7664 - 7668
ISSN:
0272-8842
Resumen:
The effect of Y3þ substitution on the structural and magnetic properties of Ni0.5Zn0.5YyFe2yO4 (0.01ryr0.05) was investigated.Microwave absorption properties of these ferrites in the frequency range 1 MHz to 1.8 GHz were also studied. Yttrium substitution slightlyreduces crystallite sizes and cell parameters, and modifies saturation magnetization, permeability and permittivity in the explored frequencyrange. The dielectric constant decreases with yttrium content, showing a constant behavior in the explored frequency range. The maximum of themagnetic losses diminishes and shifts to higher frequencies with yttrium inclusion. Yttrium-substituted Ni?Zn ferrites (with Y contentr0.05 performula unit) can be considered good attenuator materials in the explored microwave range.
