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Poster De Conférence Année : 2023

Study of Film Adhesion Using Rayleigh Modes Generated and Detected by Lasers

Résumé

Non-destructive and non-contact characterization of adhesion by surface acoustic waves (SAW) is an important goal for thin film coating. In this work, SAW are generated by a Nd:YAG laser on an aluminum sample covered by a PVC film of a uniform thickness. The normal displacement is detected at aluminum surface by an interferometer. The influence of the adhesion levels is observed on acoustic signals and a model using finite element method compares theoretical and experimental results. A program is also developed to plot the dispersion curves according to the transfer-matrix method. It allows to characterize quality of adhesion.
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Dates et versions

hal-04356611 , version 1 (20-12-2023)

Identifiants

  • HAL Id : hal-04356611 , version 1

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Mustapha Baher, Meriem Chrifi Alaoui, Frédéric Jenot, Mohammadi Ouaftouh, Marc Duquennoy. Study of Film Adhesion Using Rayleigh Modes Generated and Detected by Lasers. Mardi des Chercheurs, Jun 2023, Valenciennes, France. ⟨hal-04356611⟩
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