Title: Ultrasonic investigation for coated materials

Authors: Tarek Tahraoui; Salima Debboub; Youcef Boumaïza; Amar Boudour

Addresses: Department of Physics, Faculty of Sciences, Laboratory LEAM, Badji Mokhtar University, B.P.12 (23000) ANNABA – Algeria. ' Department of Physics, Faculty of Sciences, Laboratory LEAM, Badji Mokhtar University, B.P.12 (23000) ANNABA – Algeria. ' Department of Physics, Faculty of Sciences, Laboratory LEAM, Badji Mokhtar University, B.P.12 (23000) ANNABA – Algeria. ' Department of Physics, Faculty of Sciences, Laboratory LEAM, Badji Mokhtar University, B.P.12 (23000) ANNABA – Algeria

Abstract: This work is dedicated to the simulation study for the transverse and longitudinal mitigation effect on propagation modes in some coated materials (layer/substrate): SiC/Si, Al/SiC. The study is based on the acoustic signal simulation of received by the reflection acoustic microscope along the exploration of a coated material. The simulated signal showed us the variation of the reflection coefficient as a function of the angle of incidence of the acoustic wave. In addition, we determined the variations for this coefficient as a function of the transverse and longitudinal attenuation coefficient.

Keywords: acoustic microscopy; acoustic signing; reflection coefficient; attenuation; coated materials; nondestructive testing; NDT; silicon carbide; aluminium; simulation.

DOI: 10.1504/IJMMP.2012.047504

International Journal of Microstructure and Materials Properties, 2012 Vol.7 No.2/3, pp.254 - 268

Available online: 24 Jun 2012 *

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