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

✍ Scribed by Wu, Jun Hua ;Kim, Young Keun

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
149 KB
Volume
204
Category
Article
ISSN
0031-8965

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✦ Synopsis

Abstract

We synthesized Fe and Co‐based (Fe~48~Co~41~Si~3~B~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. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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