Columnar suspension plasma sprayed coating microstructural control for thermal barrier coating application

被引：77
|
作者：
Bernard, Benjamin [1 ,4 ]
Bianchi, Luc [1 ]
Malie, Andre [2 ]
Joulia, Aurelien [3 ]
Remy, Benjamin [4 ]
机构：
[1] CEA DAM Le Ripault, BP 16, F-37260 Monts, France
[2] Safran Snecma, Rue Maryse Bastie,BP 129, F-86101 Chatellerault, France
[3] Safran, Pole Mat & Proc, Rue Jeunes Bois,CS 80112, F-78772 Magny Les Hameaux, France
[4] LEMTA, 2 Ave Forest de Haye,BP 160, F-54504 Vandoeuvre Les Nancy, France
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2016年 / 36卷 / 04期
关键词：
Suspension plasma spray coatings; Microstructure formation mechanism; Columnar structure; Yttria-stabilized zirconia polycrystal; Thermal barrier coatings (TBCs); ZIRCONIA; BEHAVIOR; SYSTEMS; SCIENCE; POWDERS; SPS;
D O I：
10.1016/j.jeurceramsoc.2015.11.018
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Suspension plasma spraying (SPS) is used to perform enhanced YSZ coating with columnar microstructure for thermal barrier coating (TBC) applications. By combination of plasma flow, substrate preparation, suspension formulation and injection or coating kinematic management it is possible to tune SPS coating structure from widely-separated columns to a significantly more compact columnar structure. Among these parameters, substrate roughness control, combined with an adapted coating growth velocity, are identified as the most relevant. An analytical approach is presented to describe columns growth based on coating image analysis. It allows to give the expression of the lateral and normal growth speeds responsible of the columnar structure. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1081 / 1089
页数：9
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