Corrosion resistance of nonstoichiometric gadolinium zirconate coatings against CaO-MgO-Al2O3-SiO2 silicate

doi:10.1016/j.jeurceramsoc.2021.01.016

IMR OpenIR

	Corrosion resistance of nonstoichiometric gadolinium zirconate coatings against CaO-MgO-Al2O3-SiO2 silicate
	Zhang, Chengguan 1; Fan, Yun 1; Zhao, Juanli 1; Chen, Hongfei 1; Sun, Luchao 2; Yang, Guang 1; Liu, Bin 1
通讯作者	Liu, Bin(binliu@shu.edu.cn)
	2021-06-01
发表期刊	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN	0955-2219
卷号	41 期号:6 页码:3687-3695
摘要	Gadolinium zirconate is a promising next-generation thermal barrier coating material and its CaO-MgO-Al2O3SiO2 (CMAS) resistance needs to be further increased. In this study, three gadolinium zirconate coatings with different Gd/Zr ratios are successfully prepared via atmospheric plasma spray using amorphous feedstock. Their mechanical properties and corrosion resistance are investigated. The Young?s moduli and hardness of as-sprayed coatings are comparable with the gadolinium zirconate coatings reported in previous literature. Furthermore, the higher Gd content promotes the formation of the Gd-apatite and the depletion rate of CMAS corrosion. As a result, the infiltration depth of Gd2.3Zr1.7O6.85 coating after 24 h annealing decreases up to 35 % compared with those of Gd2.0Zr2.0O7.0 and Gd1.8Zr2.2O7.1, exhibiting an enhanced long-term corrosion resistance. This work develops a viable fabrication method to produce non-stoichiometric gadolinium zirconate coatings with tailorable CMAS corrosion resistance and is expected to promote the future design of thermal barrier coatings with long service life.
关键词	Thermal barrier coating Gadolinium zirconate Nonstoichiometry Corrosion resistance
资助者	Natural Science Foundation of Shanghai ; National Natural Science Foundation of China ; Program for Professor of Special Appointment (Eastern Scholar) by Shanghai Municipal Education Commission
DOI	10.1016/j.jeurceramsoc.2021.01.016
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Shanghai[20ZR1419200] ; National Natural Science Foundation of China[52072231] ; National Natural Science Foundation of China[52072232] ; Program for Professor of Special Appointment (Eastern Scholar) by Shanghai Municipal Education Commission[TP2015040]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000635771000005
出版者	ELSEVIER SCI LTD
引用统计	被引频次：8[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/321006/162233
专题	中国科学院金属研究所
通讯作者	Liu, Bin
作者单位	1.Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Chengguan,Fan, Yun,Zhao, Juanli,et al. Corrosion resistance of nonstoichiometric gadolinium zirconate coatings against CaO-MgO-Al2O3-SiO2 silicate[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2021,41(6):3687-3695.
APA	Zhang, Chengguan.,Fan, Yun.,Zhao, Juanli.,Chen, Hongfei.,Sun, Luchao.,...&Liu, Bin.(2021).Corrosion resistance of nonstoichiometric gadolinium zirconate coatings against CaO-MgO-Al2O3-SiO2 silicate.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,41(6),3687-3695.
MLA	Zhang, Chengguan,et al."Corrosion resistance of nonstoichiometric gadolinium zirconate coatings against CaO-MgO-Al2O3-SiO2 silicate".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 41.6(2021):3687-3695.