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Issue 40, 2011
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Electrodeposition of granular FeCoNi films with large permeability for microwave applications

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Abstract

A simple methodology to fabricate soft magnetic FeCoNi granular films from cheap salt solutions viaelectrodeposition at room temperature is demonstrated. With the addition of a small quantity of organic and inorganic additives into the solutions, the FeCoNi nano-granular films possess ultra-high permeability, large resistivity, and other desirable magnetic properties for gigahertz microwave applications. Typically, the films have a coercivity of less than 10 or 20 Oe along the hard or easy axis, respectively, with a saturation flux density of up to 2.43 T. The magnetic permeability and resistivity are correspondingly up to a magnitude order of about 103 and 10−4 Ω cm. These soft FeCoNi films also show a big anisotropic field of more than 50 Oe and a very small magnetostriction of <10−5. They can be potentially applied to microwave absorption as well as other applications.

Graphical abstract: Electrodeposition of granular FeCoNi films with large permeability for microwave applications

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Publication details

The article was received on 19 Jul 2011, accepted on 08 Aug 2011, published on 07 Sep 2011 and first published online on 07 Sep 2011


Article type: Paper
DOI: 10.1039/C1JM13398E
Citation: J. Mater. Chem., 2011,21, 16042-16048
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    Electrodeposition of granular FeCoNi films with large permeability for microwave applications

    B. Zong, Z. Pong, Y. Wu, P. Ho, J. Qiu, L. Kong, L. Wang and G. Han, J. Mater. Chem., 2011, 21, 16042
    DOI: 10.1039/C1JM13398E

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