State-of-the-art laser adhesion test (LASAT)

Abstract

This paper proposes a state-of-the-art laser adhesion test. It consists of testing material interfaces with laser-driven shock wave. Since the first demonstration in the 1980s by Vossen, many studies and developments have been done. This paper presents recent experiments and developments on the basic physics involved. Results show the ability of the technique to perform a quantitative adhesion test for a wide range of materials and configurations. Edge effect principle and ultra-short shock wave give perspectives for new applications for multi-layer combination of material. Fundamental principles are evidenced through experiments on bulk ductile materials before demonstrating their application to coated systems.

Keywords:

• laser
• shock
• adhesion test

Acknowledgements

Laser experiments were done on LULI (CNRS/Ecole polytechnique – France) ALISE (CEA – Le Barp) facilities through France National Institute Laser Plasma. The French Project LASAT was supported by CEA, CNRS and Mat&Pro Network.