Excellent calcium-magnesium-aluminosilicate corrosion resistance of high-entropy garnet/alumina directionally solidified eutectic at 1500 & DEG;C

doi:10.1111/jace.19374

IMR OpenIR

	Excellent calcium-magnesium-aluminosilicate corrosion resistance of high-entropy garnet/alumina directionally solidified eutectic at 1500 & DEG;C
	Zhou, Cui 1,2; Sun, Luchao 1; Du, Tiefeng 1; Wu, Zhen 1; Wang, Jiemin 1; Wang, Jingyang 1
通讯作者	Sun, Luchao(lcsun@imr.ac.cn) ; Wang, Jingyang(jywang@imr.ac.cn)
	2023-08-16
发表期刊	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
页码	12
摘要	High-temperature corrosion resistance is one of the major challenges for hot-section components in gas turbines. In this paper, the interaction of a novel high entropy (HE) (Y0.2Gd0.2Ho0.2Er0.2Yb0.2)(3)Al5O12/Al2O3 directionally solidified eutectic (DSE) with molten calcium-magnesium-aluminosilicate (CMAS) at 1500 & DEG;C for 4 to 200 h was investigated and the results indicate that (Y0.2Gd0.2Ho0.2Er0.2Yb0.2)(3)Al5O12/Al2O3 DSE possesses excellent CMAS resistance, with a true recession depth about 219.5 & mu;m after corroded by CMAS at 1500 & DEG;C for 200 h. Moreover, possible explanations on the outstanding CMAS corrosion resistance, including the protective diffusion-blocking garnet layer and the actively adjustment on the corrosion activity of CMAS melt by both the rapid dissolution of Al2O3 phase and the synergetic effects of multicomponent RE elements, are deduced based on the identification, distribution and evolution analysis of the reaction products over the corrosion time. The current results can cast light on new mechanisms and strategies with respect to multilevel optimization to develop new high-temperature structural materials with enhanced CMAS corrosion resistance ability.
关键词	calcium aluminate corrosion corrosion resistance eutectics high entropy
资助者	National Natural Science Foundation of China ; National Key Ramp;D Program of China ; National Science and Technology Major Project ; Key Research Program of the Chinese Academy of Sciences ; LiaoNing Revitalization Talents Program
DOI	10.1111/jace.19374
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52130204] ; National Natural Science Foundation of China[U21A2063] ; National Natural Science Foundation of China[52002376] ; National Key Ramp;D Program of China[2021YFB3702300] ; National Science and Technology Major Project[2017-VI-0020-0093] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-2-2] ; LiaoNing Revitalization Talents Program[XLYC2002018]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:001048748800001
出版者	WILEY
引用统计	被引频次：10[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/321006/178970
专题	中国科学院金属研究所
通讯作者	Sun, Luchao; Wang, Jingyang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Cui,Sun, Luchao,Du, Tiefeng,et al. Excellent calcium-magnesium-aluminosilicate corrosion resistance of high-entropy garnet/alumina directionally solidified eutectic at 1500 & DEG;C[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2023:12.
APA	Zhou, Cui,Sun, Luchao,Du, Tiefeng,Wu, Zhen,Wang, Jiemin,&Wang, Jingyang.(2023).Excellent calcium-magnesium-aluminosilicate corrosion resistance of high-entropy garnet/alumina directionally solidified eutectic at 1500 & DEG;C.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,12.
MLA	Zhou, Cui,et al."Excellent calcium-magnesium-aluminosilicate corrosion resistance of high-entropy garnet/alumina directionally solidified eutectic at 1500 & DEG;C".JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2023):12.