Influence of Laser Induced Surface Topography on the Surface Static Wettability in PROTAL(R)
The flattening behavior of individual splats plays a fundamental role in the elaboration of thermal spray coatings. In the PROTAL?process, an in-situ laser treatment is coupled with spraying operations. It was shown that a pulsed laser irradiation can effectively suppress the splashing phenomenon of splats. This aspect was primarily attributed to the efficient removal of surface adsorbates/condensates. But, it may also be enhanced by the modification of the surface topography that improves the surface wettability. Therefore, this study deals with the effects of the surface microroughness modifications on the surface wettability induced by the PROTAL(R) process. Several roughness parameters characterizing the surface topography are also discussed from a static wettability point of view.
H. Li Y. Danlos S. Costil C. Coddet
LERMPS-UTBM, Belfort, France
国际会议
北京
英文
2007-05-14（万方平台首次上网日期，不代表论文的发表时间）