Quasi-Static Transduction Characterization of GalfenolAmes Laboratory Conference Papers, Posters, and Presentations
Document TypeConference Proceeding
ConferenceASME 2003 International Mechanical Engineering Congress and Exposition
AbstractThe 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, the magnetic and magnetostrictive responses to major-loop cyclic magnetic field conditions are compared for the directionally solidified, extruded and single crystal specimens. The paper concludes with a magnetic characterization summary of the different Fe-Ga alloys examined.
Copyright OwnerAmerican Society of Mechanical Engineers
Citation InformationRichard A. Kellogg, Alison B. Flatau, Arthur E. Clark, Marilyn Wun-Fogle, et al.. "Quasi-Static Transduction Characterization of Galfenol" Washington, DC(2003)
Available at: http://works.bepress.com/thomas_lograsso/178/