Paper Title:
Acoustic Energy Absorption in Ferromagnetic Ni-Mn-Ga Shape Memory Alloy Polymer Composites
  Abstract

The single crystal Ni-Mn-Ga and Ni-Mn-Ga particulate composites have responded to mechanical stress up to 1 kHz frequencies with significant acoustic attenuation. It has been observed that in Ni-Mn-Ga polymer composites, a heavy static load on both the ends of the system increases the acoustic stress amplitude and appears to have acoustic loss drops. The attenuation, as a function of frequency shows resonances in the displacement of the vibrating particle indicating the twin boundary motions. It is inferred that the resonances beyond the principal mode are highly damped in the Ni-Mn-Ga composite samples.

  Info
Periodical
Edited by
Lluis Mañosa, P.K. Mukhopadhyay and S.R. Barman
Pages
87-94
DOI
10.4028/www.scientific.net/AMR.52.87
Citation
M. Mahendran, J. Feuchtwanger, R. C. O'Handley, "Acoustic Energy Absorption in Ferromagnetic Ni-Mn-Ga Shape Memory Alloy Polymer Composites", Advanced Materials Research, Vol. 52, pp. 87-94, 2008
Online since
June 2008
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$32.00
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