Sintering governing the cracking behaviors of different La2Zr2O7/YSZ ceramic layer combination TBCs at 1150 degrees C

doi:10.1016/j.surfcoat.2021.127910

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Sintering governing the cracking behaviors of different La2Zr2O7/YSZ ceramic layer combination TBCs at 1150 degrees C
	Cheng, Bo 1,2; Wang, Yu 1; Zhang, Xin 1; An, Guosheng 1; Chu, Qianqian 1; Zhang, Xinjian 1; He, Dongqing 1; Zhai, Haimin 1; Li, Wensheng 1
刊名	SURFACE & COATINGS TECHNOLOGY
	2021-12-25
卷号	428
关键词	Thermal barrier coatings Double ceramic layer Cracking Sintering Lifetime
ISSN号	0257-8972
DOI	10.1016/j.surfcoat.2021.127910
英文摘要	Sintering behavior is one of the most important indicators correlated to the service behaviors for thermal barrier coatings (TBCs). 5 different La2Zr2O7(LZO)/YSZ double ceramic layer (DCL) combination TBCs are subjected to gradient thermal cyclic tests under the surface temperature of 1150 degrees C, aiming to elucidate the service behaviors of the DCL TBCs under relative low temperature. The failure of DCL TBCs is the cracking of top coat along inplane direction, the 8YSZ TBCs showed an vertical cracking after 2200 cycles, and the stress state transferred from tensile about 250 MPa to compressive of -60 MPa. The pure 8YSZ is superior to the DCL TBCs for the longterm application at relative low temperature. Sintering induced the competition of cracking driving force and resistance dominates the cracking of TBCs, the formation of vertical cracks released the stress of the 8Y TBCs system to a large extent and the lifetime was extended.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000723649100002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150081]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院能源与动力工程学院
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China; 2.Xi An Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Bo,Wang, Yu,Zhang, Xin,et al. Sintering governing the cracking behaviors of different La2Zr2O7/YSZ ceramic layer combination TBCs at 1150 degrees C[J]. SURFACE & COATINGS TECHNOLOGY,2021,428.
APA	Cheng, Bo.,Wang, Yu.,Zhang, Xin.,An, Guosheng.,Chu, Qianqian.,...&Li, Wensheng.(2021).Sintering governing the cracking behaviors of different La2Zr2O7/YSZ ceramic layer combination TBCs at 1150 degrees C.SURFACE & COATINGS TECHNOLOGY,428.
MLA	Cheng, Bo,et al."Sintering governing the cracking behaviors of different La2Zr2O7/YSZ ceramic layer combination TBCs at 1150 degrees C".SURFACE & COATINGS TECHNOLOGY 428(2021).