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Proceedings Paper

Magneto-mechanical characterization of iron-gallium nanowire arrays for use in underwater acoustic sensors
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Paper 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.

Paper Details

Date Published: 18 April 2007
PDF: 9 pages
Proc. SPIE 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007, 65292A (18 April 2007); doi: 10.1117/12.715219
Show Author Affiliations
Patrick R. Downey, Univ. of Maryland, College Park (United States)
Alison B. Flatau, Univ. of Maryland, College Park (United States)


Published in SPIE Proceedings Vol. 6529:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007
Masayoshi Tomizuka; Chung-Bang Yun; Victor Giurgiutiu, Editor(s)

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