18 April 2007 Magneto-mechanical characterization of iron-gallium nanowire arrays for use in underwater acoustic sensors
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Abstract
This project investigates the magnetic structure and mechanical properties of iron-gallium nanowires to facilitate the modeling and design of sensor devices. Magnetic force microscopy (MFM) is employed to better understand the domain orientation and size along the cross-section of a close packed wire array. Mechanical properties are identified by conducting static tensile testing on individual nanowires using a manipulator stage designed for use within a scanning electron microscope (SEM). The Young's modulus of the nanowires is found to agree well with the value for the bulk material, but these structures do demonstrate a large increase in ultimate tensile strength. Other tests include resonance identification of nanowire beam bending via dynamic excitation.
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Patrick R. Downey, Patrick R. Downey, Alison B. Flatau, Alison B. Flatau, } "Magneto-mechanical characterization of iron-gallium nanowire arrays for use in underwater acoustic sensors", Proc. SPIE 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007, 65292A (18 April 2007); doi: 10.1117/12.715219; https://doi.org/10.1117/12.715219
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