Thermal shock behavior of EB-PVD thermal barrier coatings

doi:10.1016/j.surfcoat.2007.02.003

IMR OpenIR

	Thermal shock behavior of EB-PVD thermal barrier coatings
	Li, Meiheng ; Sun, Xiaofeng ; Hu, Wangyu ; Guan, Hengrong
通讯作者	Li, Meiheng(mhli2003@163.com)
	2007-05-21
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	201 期号:16-17 页码:7387-7391
摘要	Yttria partially stabilized zirconia ceramic top coat was deposited on a sputtered NiCrAlY bond coat by electron beam physical vapor deposition (EB-PVD) and the thermal shock behavior was studied at different temperatures. The results showed that the columnar structure of the ceramic top coat enhanced the ability of the TBC to resist thermal shock. However, the thermal shock life of the TBCs depended on the thermal shock temperature, so did the thermal shock spallation mode. At 1050 degrees C or lower temperature, the thermal shock life was long, and the spallation of the coating initiated at the edge or near the hole of samples. The TBCs failed only with the ceramic top coat spalling partially by partially and the spallation area had little effect on the un-spallation area. At 1100 degrees C and 1200 degrees C, the thermal shock life was shortened. The central coating was arched outward first during thermal shock cycling, and then the ceramic top coat spalled at a large area, just a little ceramic coating remained at the edge of the samples. When the temperature reached 1300 degrees C, the entire ceramic top coat spalled just only after one thermal shock cycle. (C) 2007 Elsevier B.V. All rights reserved.
关键词	thermal barrier coatings electron beam physical vapor deposition thermal shock
DOI	10.1016/j.surfcoat.2007.02.003
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:000246509800064
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/90681
专题	中国科学院金属研究所
通讯作者	Li, Meiheng
作者单位	1.Hunan Univ, Dept Appl Phys, Changsha 410082, Peoples R China 2.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Meiheng,Sun, Xiaofeng,Hu, Wangyu,et al. Thermal shock behavior of EB-PVD thermal barrier coatings[J]. SURFACE & COATINGS TECHNOLOGY,2007,201(16-17):7387-7391.
APA	Li, Meiheng,Sun, Xiaofeng,Hu, Wangyu,&Guan, Hengrong.(2007).Thermal shock behavior of EB-PVD thermal barrier coatings.SURFACE & COATINGS TECHNOLOGY,201(16-17),7387-7391.
MLA	Li, Meiheng,et al."Thermal shock behavior of EB-PVD thermal barrier coatings".SURFACE & COATINGS TECHNOLOGY 201.16-17(2007):7387-7391.