Influence of the preparation conditions on the magnetic properties and electrical resistivity of Fe73.5Nb3Cu1Si13.5B9 nanocrystalline alloys

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Abstract

We present the magnetic properties and the resistivity values of a series of Fe73.5Nb3Cu1Si13.5B9 alloys quenched from different melting temperatures and using different spin velocities. Some nanocrystals with a strong preferred orientation can be obtained directly from the melt at low velocities. Such partially crystalline samples show a lower room-temperature magnetostriction and resistivity than the amorphous ones. They also show a retardation in the nanocrystallization process, but the magnetic properties are poorer than those of the high-velocity samples, both in the as-quenched state and after complete nanocrystallization.

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