Microstructure and Complex Magnetic Permeability of Ni0.3Zn0.7Fe2O4 Ferrite
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Published:2008-08
Issue:
Volume:591-593
Page:125-129
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ISSN:1662-9752
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Container-title:Materials Science Forum
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language:
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Short-container-title:MSF
Author:
Othéro de Brito Vera Lúcia1,
de Melo Francisco Cristóvão Lourenço2,
da Cunha Migliano Antônio Carlos1
Affiliation:
1. Instituto Tecnológico de Aeronáutica ITA
2. CTA-IAE - Comando-Geral de Tecnologia Aeroespacial, Instituto de Aeronáutica e Espaço
Abstract
Ni-Zn ferrites are magnetic ceramics that are widely used in electric and electronic
components. Among Ni1-xZnxFe2O4 ferrites, Ni0.3Zn0.7Fe2O4 is known to be the one of highest
magnetic permeability in lower frequencies. This work is divided into two parts: the first part deals
with the influence of sintering temperature and forming conditions on the microstructure of
Ni0.3Zn0.7Fe2O4 ferrite. The second part deals with the influence of sintering temperature and
environmental variations of temperature on the complex magnetic permeability of such ferrite. The
ferrite studied in this work was fabricated by means of the conventional ceramic method. Complex
magnetic permeability between 100 kHz – 100 MHz is discussed in relation to sintering
temperature. The influence of environmental variations in temperature (-40 oC to +50 oC) on the
complex magnetic permeability of the ferrite sintered at 1300 oC is discussed.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Cited by
1 articles.
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