Laser Ultrasonic Testing for Estimation of Adhesion of Al2O3 Plasma Sprayed Coatings

G Rosa, P Psyllaki, R Oltra, T Montesin… - Surface …, 2001 - journals.sagepub.com
The aim of the present study was to investigate the possibility of using a laser ultrasonic
technique for the estimation of the adhesion of ceramic coatings, deposited onto metallic …

Quantification of plasma sprayed coating adhesion using pulsed laser induced decohesion technique

G Rosa, R Oltra, C Coddet, S Costil… - Surface …, 2001 - Taylor & Francis
The aim of the present study is to compare a laser ultrasonic technique with a conventional
indentation test for the determination of intrinsic properties and the adhesion of alumina …

Simultaneous laser generation and laser ultrasonic detection of the mechanical breakdown of a coating–substrate interface

G Rosa, P Psyllaki, R Oltra, S Costil, C Coddet - Ultrasonics, 2001 - Elsevier
The present study deals with information that could be obtained by real-time contactless
monitoring of the normal displacement, due to the propagation of the longitudinal waves …

Microstructural investigation of thermally sprayed ceramic coatings by laser acoustic surface waves

M Barbosa, D Schneider, R Puschmann… - …, 2011 - dl.asminternational.org
Young's modulus is not only one of the important mechanical properties of thermally sprayed
coatings but also a sensitive indicator of the coating's microstructural defects. The ceramic …

Laser induced decohesion of coatings: probing by laser ultrasonics

G Rosa, R Oltra, MH Nadal - Ultrasonics, 2002 - Elsevier
The aim of the present study is to investigate a conventional laser-ultrasonics technique for
the determination of intrinsic properties of oxide coatings and their adhesion strength on a …

Evaluation of the coating–substrate adhesion by laser-ultrasonics: Modeling and experiments

G Rosa, R Oltra, MH Nadal - Journal of applied physics, 2002 - pubs.aip.org
The aim of the present study is to investigate a laser-ultrasonic method to determine the
oxide-coating's adhesion strength on a metallic substrate. In order to demonstrate this …

Nondestructive characterization of plasma sprayed coatings by laser ultrasonics

M Viens, D Drolet, A Blouin… - International …, 1996 - dl.asminternational.org
Nondestructive methods previously developed for the detection of flaws, such as
delaminations, or for the evaluation of the elastic properties of materials, could be judiciously …

Evaluation of adhesion/cohesion of plasma sprayed ceramic coatings by scratch testing

J Zhang, H Chen, SW Lee, CX Ding - Thermal spray, 2007 - dl.asminternational.org
Plasma sprayed ceramic coatings have been widely applied in modifying surface properties
of metal components. They are useful to prevent various types of wear, corrosion, erosion …

Study of Aluminium Oxidation Induced by a Q-switched Nd: YAG Laser Treatment and Its Influence on the Adhesion Properties of a Plasma-Sprayed Alumina Coating

V Barnier, S Costil, H Li, C Coddet… - Thermal Spray 2007 …, 2007 - dl.asminternational.org
The aim of this work was to study the modifications induced by 10 ns single or cumulative
pulses of a Q-switched Nd: YAG laser emitting in the near-infrared (= 1064 nm) on a pure …

Influence of laser surface preparation on adhesion of thermally sprayed coatings

F Folio, J Michler, G Barbezat - Surface engineering, 2001 - journals.sagepub.com
Laser treatment was used to prepare substrate surfaces for thermal spray deposition. The
interaction between aluminium and titanium alloys and short Nd: YAG laser pulses was …