GdAlO 3 /Gd 2 Zr 2 O 7 composites for advanced thermal barrier coatings

doi:10.1016/j.jeurceramsoc.2024.116736

IMR OpenIR

	GdAlO 3 /Gd 2 Zr 2 O 7 composites for advanced thermal barrier coatings
	Liu, Xiangyang 1; Yu, Yali 1; Han, Yi 1; Liu, Guanghua 2; Sun, Jian 2; Liu, Wei 2; Zhang, Zijian 1; Xu, Na 3; Pan, Wei 1; Wan, Chunlei 1
通讯作者	Xu, Na(naxu@imr.ac.cn) ; Wan, Chunlei(wancl@mail.tsinghua.edu.cn)
	2024-12-01
发表期刊	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN	0955-2219
卷号	44 期号:15 页码:8
摘要	In order to maximize the thermal cycling performance of Gd 2 Zr 2 O 7 coating, a double-layer structured Gd 2 Zr 2 O 7 / YSZ thermal barrier coating is designed. However, thermal mismatch and inferior mechanical properties of top coating often lead to the thermal cycling life reduction of Gd 2 Zr 2 O 7 /YSZ thermal barrier coating. In the present work, a scalable hybridizing strategy approach is put forward to tailor the thermal and mechanical properties of Gd 2 Zr 2 O 7 . A serials of GAlO 3-Gd 2 Zr 2 O 7 composites are therefore fabricated, resulting in a significant increase in the fracture toughness and hardness of Gd 2 Zr 2 O 7 with the rise in GdAlO 3 volume fraction. The coefficient of thermal expansion of Gd 2 Zr 2 O 7 decreases, while the thermal conductivity increases as the GdAlO 3 volume fraction increases. These composites exhibit low phonon thermal conductivity and radiative thermal conductivity due to the heterogeneous GdAlO 3 /Gd 2 Zr 2 O 7 grain boundaries, which not only decrease phonon conductivity but also impede radiative heat transfer. The thermal cycling performance of the GdAlO 3 /Gd 2 Zr 2 O 7 (33 vol%) composite coating is investigated, showing a high thermal cycling life. We believe the modified GdAlO 3 / Gd 2 Zr 2 O 7 composites are promising for advanced thermal barrier coatings.
关键词	TBCs Fracture toughness Thermal property GdAlO 3-Gd 2 Zr 2 O 7
资助者	National Key R & D Program of China ; National Natural Science Foundation of China ; Project of The Science Center for Gas Turbine ; National Science and Technology Major Project ; Research on the Development and Preparation of Thermal Barrier Coating Materials on New Generation of Heavy-duty Gas Turbines
DOI	10.1016/j.jeurceramsoc.2024.116736
收录类别	SCI
语种	英语
资助项目	National Key R & D Program of China[2021YFB3702300] ; National Natural Science Foundation of China[52022042] ; Project of The Science Center for Gas Turbine[HT-P2022- DB-IV-002-001] ; National Science and Technology Major Project[J2019-VII-0008] ; National Science and Technology Major Project[0148] ; Research on the Development and Preparation of Thermal Barrier Coating Materials on New Generation of Heavy-duty Gas Turbines[UGTC-HT-WXKT-2022-032]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:001273551900001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：4[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/321006/188405
专题	中国科学院金属研究所
通讯作者	Xu, Na; Wan, Chunlei
作者单位	1.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China 2.China United Gas Turbine Technol Co Ltd, Beijing 100015, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Wenhua Rd 72, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiangyang,Yu, Yali,Han, Yi,et al. GdAlO 3 /Gd 2 Zr 2 O 7 composites for advanced thermal barrier coatings[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2024,44(15):8.
APA	Liu, Xiangyang.,Yu, Yali.,Han, Yi.,Liu, Guanghua.,Sun, Jian.,...&Wan, Chunlei.(2024).GdAlO 3 /Gd 2 Zr 2 O 7 composites for advanced thermal barrier coatings.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,44(15),8.
MLA	Liu, Xiangyang,et al."GdAlO 3 /Gd 2 Zr 2 O 7 composites for advanced thermal barrier coatings".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 44.15(2024):8.