The effect of the type of thermal exposure on the durability of thermal barrier coatings

被引:67
作者
Kim, GM
Yanar, NM
Hewitt, EN
Pettit, FS
Meier, GH
机构
[1] Univ Pittsburgh, Sch English, Dept Mat Sci & Engn, Pittsburgh, PA 15261 USA
[2] Chungnam Natl Univ, Dept Mat Engn, Taejon 305764, South Korea
关键词
oxidation; thermal barrier coating; thermal cycling;
D O I
10.1016/S1359-6462(02)00016-7
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The effect of cycle frequency on the spallation failure of thermal barrier coatings has been investigated. The exposure conditions affect the lifetimes of the coatings and can even change the relative performance of different bond coats. The very strong effect of exposure temperature is consistent with thermally grown oxide growth being a first order variable in scale failure. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:489 / 495
页数:7
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