Local accumulation of thermally grown oxide in plasma-sprayed thermal barrier coatings with rough top-coat/bond-coat interfaces

被引：41
作者：
Tang, F [1 ]
Schoenung, JM [1 ]
机构：
[1] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA
来源：
SCRIPTA MATERIALIA | 2005年 / 52卷 / 09期
关键词：
thermal barrier coatings; plasma spraying; oxidation; thermally grown oxide;
D O I：
10.1016/j.scriptamat.2004.12.032
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
After thermal cycle exposure, multilayered accumulation of thermally grown oxide (TGO) was observed locally on the tops of the roughness protrusions of the bond coat in thermal barrier coatings. This phenomenon is attributed to the repeated separation and growth of the TGO. The TGO accumulation caused cracking in the top coat. (C) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：905 / 909
页数：5
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