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Magnetic properties in the system Iron-Cobalt-Aluminum

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1 Author(s)
Jacobs, I. ; General Electric Corporate Research and Development, Schenectady, NY, USA

The ternary alloy system Fe-Co-Al is studied in the body-centered cubic (bcc) phase for the composition dependence of room temperature magnetization, saturation induction, and Curie temperature Tc. The system has potential for high temperature application as soft magnetic material. The results expand upon earlier measurements. The presence of a broad maximum in magnetization near the composition 70 Fe-30 Co (weight percent) in their binary does not persist beyond about 5 wt% Al in the ternary family. Previously reported Curie temperature results are confirmed including an anomalous increase of Tcwith Al dilution for a certain range of composition. This feature is explained as due to a stabilization of the α-phase to higher temperatures.

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Magnetics, IEEE Transactions on  (Volume:21 ,  Issue: 4 )