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QUASI-STATIC TRANSDUCTION CHARACTERIZATION OF GALFENOL

By Rick A. Kellogg and Arthur E. Clark

Abstract

The objective of the work presented is characterization of the magnetoelastic transduction properties of single crystal and textured polycrystalline Fe-Ga alloys (Galfenol) under controlled mechanical, magnetic and thermal conditions. Polycrystalline samples of interest include a directionally solidified specimen, which possesses a favorable saturation magnetostriction output, and an extruded specimen, whose magnetostriction properties were significantly reduced by annealing. A brief discussion of the thermally controlled transducer used for the magnetic testing is presented first. Thereafter, the single crystal response to major-loop cyclic magnetic fields under different temperature and stress conditions, as well as its response to minor-loop cyclic magnetic fields and major-loop cyclic stress is examined. Next

Year: 2009
OAI identifier: oai:CiteSeerX.psu:10.1.1.134.6812
Provided by: CiteSeerX
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