scholarly journals Wettability Characteristics of Laser Surface Textured Plasma Sprayed TiO2/ZnO Coatings

2019 ◽  
Vol 14 (5) ◽  
pp. 279-284
Author(s):  
Yusliza Yusuf ◽  
Mariyam Jameelah Ghazali ◽  
Yuichi Otsuka ◽  
Sarita Morakul ◽  
Susumu Nakamura ◽  
...  
Keyword(s):  
Laser Surface ◽  
Plasma Sprayed

Effect of simulated CO2and GaAlAs laser surface decontamination on temperature changes in Ti-plasma sprayed dental implants

2002 ◽  
Vol 30 (3) ◽  
pp. 233-239 ◽  
Author(s):  
Matthias Kreisler ◽  
Haitham Al Haj ◽  
Hermann Götz ◽  
Heinz Duschner ◽  
Bernd d'Hoedt
Keyword(s):  
Dental Implants ◽  
Laser Surface ◽  
Temperature Changes ◽  
Surface Decontamination ◽  
Plasma Sprayed

A Process Model for Laser Surface Treatment of Plasma Sprayed Coatings

2004 ◽  
Author(s):  
J. Wu ◽  
J. Choi ◽  
S. Zhang ◽  
G. Hilmas
Keyword(s):  
Surface Roughness ◽  
Surface Treatment ◽  
Process Model ◽  
Laser Surface ◽  
Treatment Technique ◽  
Beam Diameter ◽  
Laser Surface Treatment ◽  
Coating Quality ◽  
Porosity Level ◽  
Plasma Sprayed

Advanced ceramics are not easily fabricated and consolidated by the plasma spray technique because of their extremely high melting temperature. Zirconium diboride (ZrB2) has been successfully plasma sprayed, but the coatings are quite porous. The high levels of porosity are usually a result of unmelted ZrB2 particles that have been incorporated into the coating during deposition. Applying a laser surface treatment to reduce both the porosity and the coating surface roughness, and to improve the coating quality, is of great interest. A laser based surface treatment technique provides a well-controlled heat input, with minimal or no distortion. In this study, a two dimensional mathematical model is developed to investigate the effects of laser power, beam diameter and level of porosity on the coating quality, incorporating melting, solidification, and evaporation phenomena. A continuum model is used to solve Navier-Stokes equations for both solid and liquid phases. Volume-of-Fluid (VOF) is incorporated to track the free surface. The surface force is incorporated as a body force instead of a boundary condition. The porosity level and surface roughness before and after the laser surface treatment are simulated and compared with experimental results.

scholarly journals Laser surface treatment of plasma-sprayed yttria-stabilized zirconia coatings

2005 ◽  
Vol 41 (Extra) ◽  
pp. 154-159 ◽  
Author(s):  
M. A. Pinto ◽  
W. R. Osório ◽  
C. R. P. ◽  
A. García ◽  
M. C. F. Ierardi
Keyword(s):  
Surface Treatment ◽  
Laser Surface ◽  
Yttria Stabilized Zirconia ◽  
Laser Surface Treatment ◽  
Stabilized Zirconia ◽  
Plasma Sprayed

scholarly journals Laser surface patterning to enhance adhesion of plasma sprayed coatings

2015 ◽  
Vol 278 ◽  
pp. 171-182 ◽  
Author(s):  
R. Kromer ◽  
S. Costil ◽  
J. Cormier ◽  
D. Courapied ◽  
L. Berthe ◽  
...  
Keyword(s):  
Surface Patterning ◽  
Laser Surface ◽  
Plasma Sprayed Coatings ◽  
Plasma Sprayed ◽  
Sprayed Coatings

Laser surface modification of plasma sprayed CYSZ thermal barrier coatings

2013 ◽  
Vol 39 (3) ◽  
pp. 2473-2480 ◽  
Author(s):  
Raheleh Ahmadi-Pidani ◽  
Reza Shoja-Razavi ◽  
Reza Mozafarinia ◽  
Hossein Jamali
Keyword(s):  
Surface Modification ◽  
Thermal Barrier Coatings ◽  
Laser Surface ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Laser Surface Modification ◽  
Plasma Sprayed

Study on laser surface remelting of plasma-sprayed Al–Si/1wt% nano-Si3N4 coating on AZ31B magnesium alloy

2013 ◽  
Vol 273 ◽  
pp. 122-127 ◽  
Author(s):  
Yaqiong Ge ◽  
Wenxian Wang ◽  
Xin Wang ◽  
Zeqin Cui ◽  
Bingshe Xu
Keyword(s):  
Magnesium Alloy ◽  
Laser Surface ◽  
Az31b Magnesium Alloy ◽  
Laser Surface Remelting ◽  
Plasma Sprayed
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