Processing of Yttria Partially Stabilized Zirconia Thermal Barrier Coatings Implementing a High-Power Laser Diode

2004 ◽  
Vol 13 (3) ◽  
pp. 381-389 ◽  
Author(s):  
G. Antou ◽  
G. Montavon ◽  
F. Hlawka ◽  
A. Cornet ◽  
C. Coddet ◽  
...  
2016 ◽  
Vol 723 ◽  
pp. 247-251 ◽  
Author(s):  
Hong Zhou ◽  
Fei Li ◽  
Jun Wang ◽  
Bao De Sun

Thermal barrier coatings have been widely used in in both energy and propulsion systems. Plasma-sprayed thermal barrier coatings have relatively high interconnected porosity and lamina structure, which bring out a low bond strength, and lead to a short thermal cycling life. Lasers can be used for modification of materials surface. In this paper, plasma-sprayed thermal barrier coatings were laser-glazed by a high power laser in order to modify the structures. The microstructure of laser-glazed TBCs is investigated. The change on surface roughness has been examined. The result indicates that a smooth and dense glazed surface with craters and a network of microcracks is obtained after laser-glazing. The laser-glazed region consists of a columnar microstructure. There are segmentation microcracks in the laser-glazed coatings, which don’t run through the coatings along thickness. Surface roughness has been reduced significantly for the laser treated ceramic coatings.


1996 ◽  
Vol 24 (Supplement) ◽  
pp. 85-88
Author(s):  
H. Kan ◽  
T. Kanzaki ◽  
H. Miyajima ◽  
Y. Ito ◽  
K. Matsui ◽  
...  

2012 ◽  
Author(s):  
Nobuto Kageyama ◽  
Takenori Morita ◽  
Kousuke Torii ◽  
Motoki Takauji ◽  
Takehito Nagakura ◽  
...  

2007 ◽  
Vol 56 (10) ◽  
pp. 5831
Author(s):  
Su Zhou-Ping ◽  
Lou Qi-Hong ◽  
Dong Jing-Xing ◽  
Zhou Jun ◽  
Wei Yun-Rong

2001 ◽  
Vol 73 (5-6) ◽  
pp. 571-574 ◽  
Author(s):  
K. Hamamoto ◽  
E. Gini ◽  
C. Holtmann ◽  
H. Melchior

2021 ◽  
Author(s):  
Ruiying Li ◽  
Xikun Chen ◽  
Yongjian Chen ◽  
Xuhui Ni ◽  
Junnan Gu

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