A method for in situ measurement of the elastic behavior of a columnar thermal barrier coating

doi:10.1016/j.actamat.2011.02.034

IMECH-IR > 非线性力学国家重点实验室

	A method for in situ measurement of the elastic behavior of a columnar thermal barrier coating
	Eberl C; Gianola DS; Wang X; He MY; Evans AG; Hemker KJ; Eberl, C (reprint author), Karlsruhe Inst Technol, Inst Appl Mat, Karlsruhe, Germany
发表期刊	Acta Materialia
	2011
卷号	59 期号:9 页码:3612-3620
ISSN	1359-6454
摘要	The mechanical behavior of a ceramic coating and the evolution of this behavior in-service play crucial roles in governing the performance and lifetime of these materials. A protocol is presented that allows for characterization of the in-plane elastic modulus and strain to failure of fragile ceramic coatings. The protocol employs digital image correlation (DIC) to measure time-resolved, full-field strain maps of bilayer microbeams, and material properties are extracted through direct comparison with finite element simulations of microbending experiments. The efficacy of the method is demonstrated by the measurement of the in-plane Young's modulus (E(TBC) = 15-30 GPa) and the strain to fracture (3.5-5 x 10(-3)) of electron beam physical vapor deposited 7% yttria-stabilized zirconia thermal barrier coatings (TBCs). The results from this study also indicate that the in-plane TBC modulus has no strain dependence when measured in tension. (C) 2011 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
关键词	Thermal Barrier Coating (Tbc) Digital Image Correlation Elastic In Plane Modulus Fracture Strain Eb-pvd 7ysz Residual-stresses Microstructure Indentation
学科领域	Materials Science ; Metallurgy & Metallurgical Engineering
DOI	10.1016/j.actamat.2011.02.034
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000290692600028
关键词[WOS]	RESIDUAL-STRESSES ; MICROSTRUCTURE ; INDENTATION
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
论文分区	一类
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/44930
专题	非线性力学国家重点实验室
通讯作者	Eberl, C (reprint author), Karlsruhe Inst Technol, Inst Appl Mat, Karlsruhe, Germany
推荐引用方式 GB/T 7714	Eberl C,Gianola DS,Wang X,et al. A method for in situ measurement of the elastic behavior of a columnar thermal barrier coating[J]. Acta Materialia,2011,59,9,:3612-3620.
APA	Eberl C.,Gianola DS.,Wang X.,He MY.,Evans AG.,...&Eberl, C .(2011).A method for in situ measurement of the elastic behavior of a columnar thermal barrier coating.Acta Materialia,59(9),3612-3620.
MLA	Eberl C,et al."A method for in situ measurement of the elastic behavior of a columnar thermal barrier coating".Acta Materialia 59.9(2011):3612-3620.

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