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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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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