Characterization of the strain in the thermal barrier coatings caused by   molten CaO-MgO-Al2O3-SiO2 using a digital image correlation technique

doi:10.1016/j.surfcoat.2017.05.025

CORC > 北京大学 > 工学院

	Characterization of the strain in the thermal barrier coatings caused by molten CaO-MgO-Al2O3-SiO2 using a digital image correlation technique
	Yang, L. ; Yang, J. ; Xia, J. ; Zhu, W. ; Zhou, Y. C. ; Wei, Y. G. ; Wu, R. T.
刊名	SURFACE & COATINGS TECHNOLOGY
	2017
关键词	Thermal barrier coatings High temperature corrosion CaO-MgO-Al2O3-SiO2 Digital image correlation HIGH-TEMPERATURE ATTACK TBC SYSTEM FAILURE CMAS DEPOSITS STRESS-DISTRIBUTION GLASSY DEPOSITS MECHANISMS DEGRADATION DELAMINATION INFILTRATION RESISTANCE
DOI	10.1016/j.surfcoat.2017.05.025
英文摘要	The strain field of the thermal barrier coatings (TBCs) corroded by molten CaO-MgO-Al2O3-SiO2 (CMAS) is investigated using the digital image correlation (DIC) techniques. The results indicate that the strain in TBCs is compressive and it increases during cooling from 1250 to 25 degrees C. The cracks induced by CMAS form at the YSZ/BC interface at 300-400 degrees C. These cracks can be observed even without CMAS as temperature decreases to 100 degrees C. The DIC measurements show that the critical strains for the failure of TBCs with and without CMAS are 0.7% and -1.6%, respectively, and these results can be predicted by using a theoretical model. (C) 2017 Elsevier B.V. All rights reserved.; National Natural Science Foundation of China [51590891, 11472237, 11602211, 11432014]; Distinguished Young Scholar Foundation of Hunan Province [2016JJ1014]; Outstanding Youth Foundation of Hunan Provincial Education Department [168249]; SCI(E); ARTICLE; 1-9; 322
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471489]
专题	工学院
推荐引用方式 GB/T 7714	Yang, L.,Yang, J.,Xia, J.,et al. Characterization of the strain in the thermal barrier coatings caused by molten CaO-MgO-Al2O3-SiO2 using a digital image correlation technique[J]. SURFACE & COATINGS TECHNOLOGY,2017.
APA	Yang, L..,Yang, J..,Xia, J..,Zhu, W..,Zhou, Y. C..,...&Wu, R. T..(2017).Characterization of the strain in the thermal barrier coatings caused by molten CaO-MgO-Al2O3-SiO2 using a digital image correlation technique.SURFACE & COATINGS TECHNOLOGY.
MLA	Yang, L.,et al."Characterization of the strain in the thermal barrier coatings caused by molten CaO-MgO-Al2O3-SiO2 using a digital image correlation technique".SURFACE & COATINGS TECHNOLOGY (2017).