The effects of laser-induced modification of surface roughness of Al2O3-based ceramics on fluid contact angle

Characterization and modification of technical ceramics through laser surface engineering

“…To date, limited investigations have been performed with respect to achieving an ideal surface treatment of various ceramics with due to the ceramic not being crack pore and defect free [38][39][40][41][42][43]. Ester et al [38] conducted an investigation on Al 2 O 3 and ZrO 2 -based oxide ceramics by employing a HPDL.…”

“…This was performed by controlling the laser power, traverse speed, and the sample temperature by preheating the surface of the ceramic. Triantafyllidis et al [39][40][41][42][43] performed several investigations on laser surface treatment of mainly Al 2 O 3 -based refractory ceramics by employing the HPDL. Earlier work of Triantafyllidis et al identified solidification cracking due to the generation of very large temperature gradients.…”

“…Further investigation showed that crack-free surfaces improved the properties of the ceramic surface. Those properties were corrosion resistance, contact characteristics and surface morphology, contact angle, and wetting and water permeability [41,42]. Other studies involved the use of a HPDL to process refractory Al 2 O 3 without using a post-or preheating method, which are conventional ideas in processing ceramics by using a laser beam [43].…”

Modelling of process parameters in laser polishing of steel components using ensembles of regression trees

“…Laser polishing processes have been carried out successfully for more than 10 years in the polishing of ceramics [Nicolas, 1997] [Triantafyllidis, 2005] and metals [Henari, 1995]. If the process parameters are optimum, the laser beam will only melt the material of the topography peaks and the melted material then fills the valleys resulting in a smoother topography than the initial one [Ramos-Grez, 2004].…”

Effects of laser ablation coating removal (LACR) on a steel substrate: Part 1: Surface profile, microstructure, hardness, and adhesion

“…Over the last 25 years, pulsed and continuous laser sources have been increasingly used in commercial applications related to surface modification (alloy chemistry, roughness, cladding, cleanliness, hardness, and local microstructure) [1][2][3][4][5][6]. Laser ablation coating removal (LACR) has already been successfully applied on aircraft structures [7][8][9].…”