A 64 kHz Langevin sandwich transducer fabricated using giant magnetostrictive composites

A 64 kHz Langevin sandwich transducer fabricated using giant magnetostrictive composites

Rare-earth-iron alloy Terfenol-D (Tb/sub 0.30/Dy/sub 0.70/Fe/sub 1.92/) is one of the finest magnetostrictive materials to date because of its giant magnetostrictive strain (/spl sim/1200 ppm) and strain energy density (/spl sim/20 kJ/m/sup 3/) with an expeditious response (/spl sim/1 /spl mu/s) at...

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Bibliographische Detailangaben
Hauptverfasser: Chung Sheung Yung, Ching Yin Lo, Siu Wing Or
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Acoustic devices
Composite materials
Iron alloys
Magnetic devices
Magnetic field induced strain
Magnetic materials
Magnetosphere
Magnetostriction
Magnetostrictive devices
Transducers
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Zusammenfassung:Rare-earth-iron alloy Terfenol-D (Tb/sub 0.30/Dy/sub 0.70/Fe/sub 1.92/) is one of the finest magnetostrictive materials to date because of its giant magnetostrictive strain (/spl sim/1200 ppm) and strain energy density (/spl sim/20 kJ/m/sup 3/) with an expeditious response (/spl sim/1 /spl mu/s) at both room temperature and low fields (
ISSN:2150-4598
2150-4601
DOI:10.1109/INTMAG.2005.1464152