FeCoSiB ribbons High-sensitive stress sensors Nanogram structure Annealing Electric potential Iron alloys Magnetic cores Nanostructured materials
Issue Date:
2007
Publisher:
Physica Status Solidi (C) Current Topics in Solid State Physics
Citation:
Volume: 4, Issue: 12, Page : 4585-4588
Abstract:
High-sensitive stress sensor is simply constructed comprising magnetostrictive 30 ?m-thick (Fe80
Co20) 78Si12B10 ribbon acting as a sensitive magnetic core inside an induction coil. The stress can be
determined indirectly by measuring the change in the output voltage in the two-coil system. The results
show that the sensitivity highly depends on the intrinsic properties of the ribbon cores. The optimum with
both a high sensitivity and an almost linear stress dependence of output signal was obtained in the 250?Cannealed
ribbon. This is attributed to the correlation between the magnetic and magnetoelastic softness
governed by the fine 10 nm nanogram structure. These high sensitivity and simple fabrication sensors are
widely applicable to various stress detecting fields. ?? 2007 WILEY-VCH Verlag GmbH & Co. KGaA.
