LASER INDUCED DECOHESION

Journal of Adhesion 68, Nos. 1-2, 1998, p. 117-42 QUANTIFICATION OF COATING ADHESION USING LASER INDUCED DECOHESION SPECTROSCOPY... 

Anew technique, laser induced decohesion spectroscopy, is presented, which is capable of measuring the practical work of adhesion between a transparent polymer coating or substrate. A laser pulse directed onto the sample creates a blister at the transparent/opaque interface. The blister s internal pressure depends on the laser pulse energy, and at a critical pressure the sample fractures, creating an annular debond similar to that obtained in the standard blister test. By measuring physical variables such as the... 

---