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ΔE effect and magnetomechanical coupling factor in Fe80B20and Fe78Si10B12glassy ribbons

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4 Author(s)
Mitchell, M. ; Naval Surface Weapons Center, Silver Spring, MD ; Clark, A.E. ; Savage, Howard T. ; Abbundi, R.

Field annealing experiments on amorphous Fe80B20ribbon (Metglas 2605) and amorphous Fe78Si10B12ribbon (Tsuya, Tohoku University) are reported. The maximum magnetomechanical coupling constant, k , and change in Young's modulus, ΔE/E0found in Fe80B20were 0.64 and 0.87, respectively, for an anneal of 376° for 6 min in a field of 2.0T. The maximum k for Fe78Si10B12was found to be 0.82, following a similar anneal at 373°C. This is higher than 0.75 reported by Tsuya and Arai for Fe78Si10B12, previously the highest known for any material.

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Magnetics, IEEE Transactions on  (Volume:14 ,  Issue: 6 )