Thermal cycling behavior of YSZ and La-2(Zr0.7Ce0.3)(2)O-7 as double-ceramic-layer systems EB-PVD TBCs

	Thermal cycling behavior of YSZ and La-2(Zr0.7Ce0.3)(2)O-7 as double-ceramic-layer systems EB-PVD TBCs
	Xu ZH ; He LM ; Mu RD ; Lu F ; He SM ; Cao XQ
刊名	journal of alloys and compounds
	2012
卷号	525 页码:87-96
关键词	PHYSICAL VAPOR-DEPOSITION YTTRIA-STABILIZED ZIRCONIA BARRIER-COATING MATERIAL HOT CORROSION BEHAVIOR LANTHANUM-CERIUM OXIDE MICROSTRUCTURE TRANSFORMATION CONDUCTIVITY DELAMINATION GADOLINIA
ISSN号	0925-8388
通讯作者	xu zh
中文摘要	double-ceramic-layer (dcl) thermal barrier coatings (tbcs) of la-2(zr0.7ce0.3)(2)o-7 (lz7c3) and yttria stabilized zirconia (ysz) were deposited by electron beam-physical vapor deposition (eb-pvd). the thermal cycling test at 1573 k in burner-rig with a coal gas flame indicates the thermal cycling life of dcl coating is not only much longer than that of lz7c3 coating, but also approximately 27% longer than that of ysz coating. the superior sintering-resistance of lz7c3 coating and the unique growth modes of columns within dcl coating are all very helpful to the prolongation of thermal cycling life of dcl coating. the failure of dcl coating is mainly a result of the reduction-oxidation of cerium oxide, the re-crystallization of some lz7c3 fine grains, the cracks initiation, propagation and extension, the abnormal oxidation of bond coat, the degradation of t'-phase in ysz coating and the outward diffusion of cr alloying element into lz7c3 coating. since no single material that has been studied so far satisfies all the requirements for high temperature applications, dcl coating is an important development direction of tbcs. (c) 2012 elsevier b. v. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000302574800017
公开日期	2013-05-20
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/48104]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Xu ZH,He LM,Mu RD,et al. Thermal cycling behavior of YSZ and La-2(Zr0.7Ce0.3)(2)O-7 as double-ceramic-layer systems EB-PVD TBCs[J]. journal of alloys and compounds,2012,525:87-96.
APA	Xu ZH,He LM,Mu RD,Lu F,He SM,&Cao XQ.(2012).Thermal cycling behavior of YSZ and La-2(Zr0.7Ce0.3)(2)O-7 as double-ceramic-layer systems EB-PVD TBCs.journal of alloys and compounds,525,87-96.
MLA	Xu ZH,et al."Thermal cycling behavior of YSZ and La-2(Zr0.7Ce0.3)(2)O-7 as double-ceramic-layer systems EB-PVD TBCs".journal of alloys and compounds 525(2012):87-96.