High-temperature aging of EB-PVD thermal barrier coatings

被引：0
|
作者：
Schulz, U [1 ]
Fritscher, K [1 ]
Leyens, C [1 ]
Peters, M [1 ]
机构：
[1] DLR German Aerosp Ctr, Inst Mat Res, D-51170 Cologne, Germany
来源：
25TH ANNUAL CONFERENCE ON COMPOSITES, ADVANCED CERAMICS, MATERIALS, AND STRUCTURES: B | 2001年 / 22卷 / 04期
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Thermal barrier coatings (TBCs) are currently used for lifetime improvement of highly loaded turbine blades and vanes in aeroengines and land-based gas turbines. The current prime choice are partially yttria stabilized zirconia EB-PVD TBCs. Next generation TBCs require improved sinter resistance, phase stability, thermal insulation, and a controlled interface to the metal. The paper presents the phase transformation and sintering behavior of current EB-PVD TBCs, and furthermore, modified TBC systems such as discrete alumina interlayers, graded alumina/zirconia transition layers, and fully yttria stabilized zirconia ceramics. Microstructure and lifetime of these TBC systems are discussed with regard to processing and properties.
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页码：347 / 356
页数：10
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