Interconnected porosity modification of plasma sprayed alumina coating using excimer laser surface treatment

Olivier Amsellem (1) , F. Pauchet (1) , Michel Jeandin (2) , Vincent Guipont (2)

1 Schlumberger - Riboud Product Center
2 MAT - Centre des Matériaux

Thermally sprayed ceramic coatings such as plasma-sprayed alumina exhibit a composite microstructure due to the presence of defects such as pores, interlamellar and intralamellar cracks. These second phase typed features influence the mechanical behaviour of the coating dramatically. In this study, an excimer laser surface treatment of plasma-sprayed alumina surface was developed for the optimization .....

Domaines: Sciences de l'ingénieur [physics]; Matériaux

Olivier Amsellem, F. Pauchet, Michel Jeandin, Vincent Guipont. Interconnected porosity modification of plasma sprayed alumina coating using excimer laser surface treatment. Thermal spray 2012, May 2012, Houston, United States. pp.521-527. ⟨hal-00714767⟩