Magnetoelastic bending of Galfenol for sensor applications

Journal Article · Sun May 15 00:00:00 EDT 2005 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.1853838· OSTI ID:20711696

Downey, P R; Flatau, A B ^[1]

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1. Aerospace Engineering, University of Maryland, College Park, Maryland 20742 (United States)

This project investigates the behavior of iron-gallium (Galfenol) alloys in elastic bending to facilitate the design concepts for using Galfenol in novel sensor applications at the macro to nanoscale. A series of experiments are conducted on the magnetic response of cantilevered beams to dynamic bending loads. The samples studied include polycrystalline and single crystal rods of varied dimension with compositions ranging from 16 to 21 at % Ga. Results of initial testing show that sinusoidal bending produces measurable induction that increases with applied magnetic bias. Other results examine the effect of material composition and sensor location, as well as the broadband response.

• OSTI ID: 20711696
• Journal Information: Journal of Applied Physics, Vol. 97, Issue 10; Conference: 49. annual conference on magnetism and magnetic materials, Jacksonville, FL (United States), 7-11 Nov 2004; Other Information: DOI: 10.1063/1.1853838; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BENDING
FERROMAGNETIC MATERIALS
GALLIUM ALLOYS
INDUCTION
IRON ALLOYS
MAGNETOSTRICTION
MONOCRYSTALS
NANOSTRUCTURES
POLYCRYSTALS
TESTING