Characterization of electro-adhesion using surface waves generated and detected by Laser-Ultrasonics

IF 4.1 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Ndt & E International Pub Date : 2024-07-17 DOI:10.1016/j.ndteint.2024.103191

Mustapha Baher, Meriem Chrifi Alaoui, Frédéric Jenot, Mohammadi Ouaftouh, Marc Duquennoy

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Abstract

Studying and understanding adhesion characteristics between a coating and its substrate is important for improving the reliability of a thin film’s adhesion. To the best of the authors’ knowledge, this work studies for the first time a specific electro-adhesion process using Laser-Ultrasonics. An electric field source is applied to a convenient sample composed of a polyvinyl chloride (PVC) layer on an aluminum (Al) substrate. The aim is to investigate the impact of different electro-adhesion levels on the propagation of surface acoustic waves (SAW), which are generated by a pulsed laser and detected using an interferometer. This non-destructive and non-contact experimental setup allows us to determine the surface modes dispersion curves for each adhesion level. A theoretical model is developed to numerically solve the dispersion relation in order to analyze the influence of the interface quality on the dispersion curves. These ones have also been obtained by the finite element method (FEM) allowing us to predict the shape of the experimental signals. This research paves the way for future studies of specific adhesion phenomena across different materials.

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利用激光超声波产生和检测的表面波表征电附着力

研究和了解涂层与其基底之间的附着特性对于提高薄膜附着的可靠性非常重要。据作者所知，这项研究首次使用激光超声波技术对特定的电附着过程进行了研究。电场源被施加到由铝基板上的聚氯乙烯（PVC）层组成的方便样品上。目的是研究不同的电附着水平对表面声波（SAW）传播的影响，SAW 由脉冲激光产生，并使用干涉仪进行检测。通过这种非破坏性和非接触式实验装置，我们可以确定每个附着水平的表面模式频散曲线。为了分析界面质量对频散曲线的影响，我们开发了一个理论模型来数值求解频散关系。我们还通过有限元法（FEM）获得了这些曲线，从而可以预测实验信号的形状。这项研究为今后研究不同材料间的特殊粘附现象铺平了道路。

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来源期刊

Ndt & E International 工程技术-材料科学：表征与测试

CiteScore

7.20

自引率

9.50%

发文量

121

审稿时长

55 days

期刊介绍： NDT&E international publishes peer-reviewed results of original research and development in all categories of the fields of nondestructive testing and evaluation including ultrasonics, electromagnetics, radiography, optical and thermal methods. In addition to traditional NDE topics, the emerging technology area of inspection of civil structures and materials is also emphasized. The journal publishes original papers on research and development of new inspection techniques and methods, as well as on novel and innovative applications of established methods. Papers on NDE sensors and their applications both for inspection and process control, as well as papers describing novel NDE systems for structural health monitoring and their performance in industrial settings are also considered. Other regular features include international news, new equipment and a calendar of forthcoming worldwide meetings. This journal is listed in Current Contents.