Reinforced sol-gel thermal barrier coatings and their cyclic oxidation life

被引：22

作者：

Pin, Lisa ^{[1
,2
]}

Ansart, Florence ^{[1
]}

Bonino, Jean-Pierre ^{[1
]}

Le Maoult, Yannick ^{[2
]}

Vidal, Vanessa ^{[2
]}

Lours, Philippe ^{[2
]}

机构：

[1] Univ Toulouse, UPS INP CNRS, Inst Carnot CIRIMAT, F-31062 Toulouse 09, France

[2] Univ Toulouse, Mines Albi Inst Clement Ader, F-81013 Albi 09, France

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2013年 / 33卷 / 02期

关键词：

Sol-gel; Oxidation; Reinforcement; Thermal barrier coating; STABILIZED ZIRCONIA COATINGS;

D O I：

10.1016/j.jeurceramsoc.2012.07.037

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：

Cyclic oxidation life enhancement of sol gel thermal barrier coatings is obtained via the reinforcement of the controlled micro-crack network that forms during the initial sintering of the deposit. Two different sol-gel methods are used to fill in the process-induced cracks, namely dipcoating and spray-coating. Filling parameters, for instance the number of passes or the viscosity of the sol are adjusted, using various techniques such as profilometry and microstructural analysis, to optimise crack filling. Cyclic oxidation tests are implemented at both 1100 degrees C and 1150 degrees C to investigate the efficiency of the various reinforcement procedures developed and address the influence of the specific microstructure on the oxidation behaviour. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：269 / 276

页数：8

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