In situ laser remelted thermal barrier coatings: Thermophysical properties

被引:27
作者
Antou, G
Hlawka, F
Cornet, A
Becker, C
Ruch, D
Riche, A
机构
[1] Inst Natl Sci Appl, LGECO, GLISS, F-67084 Strasbourg, France
[2] Ctr Rech Publ Henri Tudor, LTI, L-4002 Esch Sur Alzette, Luxembourg
关键词
plasma-laser hybrid process; thermal barrier coating; yttria partially stabilized zirconia; pore architecture; thermal properties; thermal cycles;
D O I
10.1016/j.surfcoat.2005.09.008
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Thermophysical properties of yttria partially stabilized zirconia (8Y(2)O(3)-ZrO2) thermal barrier coatings manufactured implementing in situ laser remelting process (a hybrid process which combines laser remelting and thermal spraying) were characterized from ambient temperature to 1100 degrees C. Their properties were compared to conventional as-sprayed coatings. The evolution of the thermal properties as a function of the undergone laser treatments. permits to select the suitable treatments improving the insulation function of thermal barrier coatings. The stability of the coating thermal properties during thermal cycles was also evaluated to guarantee the performances under service conditions. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:6062 / 6072
页数:11
相关论文
共 37 条
[1]   Modified thick thermal barrier coatings:: Thermophysical characterization [J].
Ahmaniemi, S ;
Vuoristo, P ;
Mäntylä, T ;
Cernuschi, F ;
Lorenzoni, L .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (09) :2669-2679
[2]  
AHMANIEMI S, 2000, THERMAL SPRAY SURFAC, P1081
[3]   Microstructures of partially stabilized zirconia manufactured via hybrid plasma spray process [J].
Antou, G ;
Montavon, G ;
Hlawka, F ;
Cornet, A ;
Coddet, C .
CERAMICS INTERNATIONAL, 2005, 31 (04) :611-619
[4]   Processing of yttria partially stabilized zirconia thermal barrier coatings implementing a high-power laser diode [J].
Antou, G ;
Montavon, G ;
Hlawka, F ;
Cornet, A ;
Coddet, C ;
Machi, F .
JOURNAL OF THERMAL SPRAY TECHNOLOGY, 2004, 13 (03) :381-389
[5]   Evaluation of modifications induced on pore network and structure of partially stabilized zirconia manufactured by hybrid plasma spray process [J].
Antou, G ;
Montavon, G ;
Hlawka, F ;
Cornet, A ;
Coddet, C ;
Machi, F .
SURFACE & COATINGS TECHNOLOGY, 2004, 180 :627-632
[6]  
ANTOU G, 2005, P INT THERM SPRAY C
[7]  
ANTOU G, IN PRESS J AM CERAM
[8]  
*ASTM, 146192 ASTM E
[9]  
CEMUSCHI F, 2005, J EUR CERAM SOC, V25, P393
[10]   Microstructures of ZrO2-8wt.%Y2O3 coatings prepared by a plasma laser hybrid spraying technique [J].
Chwa, SO ;
Ohmori, A .
SURFACE & COATINGS TECHNOLOGY, 2002, 153 (2-3) :304-312