Ordering and magnetoelestic properties of Fe-Ga alloy

Kamila Perduta (Walters), J. Olszewski, Simon Busbridge, M. Nabiałek

Research output: Contribution to journalArticle

Abstract

In this paper the investigations of the ordering, microstructure and magnetomechanical properties of the Fe80Ga20 alloy and its composites are presented. The composites consisted of the Fe-Ga particles with a size distribution in the range between 20 to 50 μm. These particles were produced by blade milling of arc-melted alloy. After milling the powders were annealed at 723K for 2.5, 7.5 and 12.5 hours. The epoxy-bonded composites in rectangular shape were made from the as-cast as well as from the annealed powders. Mössbauer spectroscopy studies revealed that the as-cast alloy is completely disordered. After annealing at 723 K the long range atomic order appeared. It was stated that the best magnetoelastic properties were exhibited by composites made from ferromagnetic particles obtained from the as-cast alloy. The measured saturation magnetostriction was λs= 70 x 10-6 for the bulk alloy and λs=100 x 10-6 for composite.
Original languageEnglish
Pages (from-to)1537-1543
Number of pages7
JournalActa Physica Polonica A
Volume114
Issue number6
Publication statusPublished - 1 Jan 2008

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