Synthesis and microwave properties of highly permeable FeCo-based nano-alloys

Jun Hua Wu; Young Keun Kim

doi:10.1002/pssa.200777242

Synthesis and microwave properties of highly permeable FeCo-based nano-alloys

Jun Hua Wu, Young Keun Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We synthesized Fe and Co-based (Fe ₄₈Co ₄₁Si ₃B ₈) alloy nanopowders by a mechanochemical technique and investigated their structure, magnetic and electromagnetic properties. The nanopowders have a bcc (A2) phase and demonstrate high magnetization with low coercivity. The analysis reveals that their magnetization process may be described by a two-phase model. The microwave measurements performed by the coaxial method over a broad band up to 18 GHz show that the nanocomposites comprising the nanopowders possess high, broadband magnetic permeability, promising applications in electromagnetic shielding and microwave absorption.

Original language	English
Pages (from-to)	4087-4090
Number of pages	4
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	204
Issue number	12
DOIs	https://doi.org/10.1002/pssa.200777242
Publication status	Published - 2007 Dec

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Electrical and Electronic Engineering
Materials Chemistry

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abstract = "We synthesized Fe and Co-based (Fe 48Co 41Si 3B 8) alloy nanopowders by a mechanochemical technique and investigated their structure, magnetic and electromagnetic properties. The nanopowders have a bcc (A2) phase and demonstrate high magnetization with low coercivity. The analysis reveals that their magnetization process may be described by a two-phase model. The microwave measurements performed by the coaxial method over a broad band up to 18 GHz show that the nanocomposites comprising the nanopowders possess high, broadband magnetic permeability, promising applications in electromagnetic shielding and microwave absorption.",

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AB - We synthesized Fe and Co-based (Fe 48Co 41Si 3B 8) alloy nanopowders by a mechanochemical technique and investigated their structure, magnetic and electromagnetic properties. The nanopowders have a bcc (A2) phase and demonstrate high magnetization with low coercivity. The analysis reveals that their magnetization process may be described by a two-phase model. The microwave measurements performed by the coaxial method over a broad band up to 18 GHz show that the nanocomposites comprising the nanopowders possess high, broadband magnetic permeability, promising applications in electromagnetic shielding and microwave absorption.

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