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

Patrick R. Downey; Alison B. Flatau

doi:10.1117/12.715219

18 April 2007 Magneto-mechanical characterization of iron-gallium nanowire arrays for use in underwater acoustic sensors

Patrick R. Downey, Alison B. Flatau

Author Affiliations +

Proceedings Volume 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007; 65292A (2007) https://doi.org/10.1117/12.715219
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

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.

Citation Download Citation

Patrick R. Downey and 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); https://doi.org/10.1117/12.715219

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