Paper Title:
Study of Biomaterials Acoustic Signature Using Annular Lenses
  Abstract

In this work, we study the microstructure of porous alumina Al2O3 through the acoustic signature behavior V(z). This function depends on the low porosity when annular lenses conditions at an operating frequency of 1 GHz are used. In non destructive control, this quantitative investigation which allows the determination of mechanical materials properties is of a great importance in the measurement of the surface waves attenuation in this type of biomaterials. Hence, we have numerically simulated the porous alumina acoustic signatures through variable occultation of generating rays at the lens center, in order to quantify the occultation limiting angle. Consequently, the evaluation of the equivalent Rayleigh velocity using the fast Fourier transform (F.F.T) spectra was achieved thanks to the suppression of the Rayleigh mode generation.

  Info
Periodical
Chapter
Chapter III: Applications
Edited by
Maher Soueidan, Mohamad Roumié and Pierre Masri
Pages
493-496
DOI
10.4028/www.scientific.net/AMR.324.493
Citation
S. Bouhedja, F. Hamdi, "Study of Biomaterials Acoustic Signature Using Annular Lenses", Advanced Materials Research, Vol. 324, pp. 493-496, 2011
Online since
August 2011
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Price
$35.00
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