In-situ observation and mechanism of calcium-magnesiumalumina-silicate (CMAS) melts-induced degradation of RE<sub>2</sub>SiO<sub>5</sub> (RE = Tb, Dy, Ho, Y, Er, Tm, and Yb) ceramics at 1500 °C

doi:10.26599/JAC.2023.9220822

IMR OpenIR

	In-situ observation and mechanism of calcium-magnesiumalumina-silicate (CMAS) melts-induced degradation of RE₂SiO₅ (RE = Tb, Dy, Ho, Y, Er, Tm, and Yb) ceramics at 1500 °C
	Tian, Zhilin 1; Ming, Keyu 1; Zheng, Liya 1; Chen, Zhilin 1; Zhou, Fan 1; Liu, Peng 1; Qiu, Zihao 1; Wei, Donghui 2; Li, Bin 1; Wang, Jingyang 3
通讯作者	Zheng, Liya(zhengly26@mail.sysu.edu.cn) ; Li, Bin(libin75@mail.sysu.edu.cn) ; Wang, Jingyang(jywang@imr.ac.cn)
	2023-12-01
发表期刊	JOURNAL OF ADVANCED CERAMICS
ISSN	2226-4108
卷号	12 期号:12 页码:2315-2330
摘要	Rare earth (RE) silicate is one of the most promising environmental barrier coatings for silicon-based ceramics in gas turbine engines. However, calcium-magnesium-alumina-silicate (CMAS) corrosion becomes much more serious and is the critical challenge for RE silicate with the increasing operating temperature. Therefore, it is quite urgent to clarify the mechanism of high-temperature CMAS-induced degradation of RE silicate at relatively high temperatures. Herein, the interaction between RE2SiO5 and CMAS up to 1500 degrees C was investigated by a novel high-temperature in-situ observation method. High temperature promotes the growth of the main reaction product (Ca2RE8(SiO4)(6)O-2) fast along the [001] direction, and the precipitation of short and horizontally distributed Ca2RE8(SiO4)(6)O-2 grains was accelerated during the cooling process. The increased temperature increases the solubility of RE elements, decreases the viscosity of CMAS, and thus elevates the corrosion reaction rate, making RE2SiO5 fast interaction with CMAS and less affected by RE element species.
关键词	calcium-magnesium-alumina-silicate (CMAS) corrosion environmental barrier coating rare earth (RE) silicate high temperature
资助者	National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Foundation for Distinguished Young Scholars ; Guangdong Basic and Applied Basic Research Foundation ; Shenzhen Science and Technology Program
DOI	10.26599/JAC.2023.9220822
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52202078] ; National Natural Science Foundation of China[52202126] ; Guangdong Basic and Applied Basic Research Foundation for Distinguished Young Scholars[2021B1515020083] ; Guangdong Basic and Applied Basic Research Foundation[2021A1515110293] ; Guangdong Basic and Applied Basic Research Foundation[2022A1515012201] ; Shenzhen Science and Technology Program[202206193000001] ; Shenzhen Science and Technology Program[20220818183014003]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:001150314300007
出版者	TSINGHUA UNIV PRESS
引用统计	被引频次：19[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/321006/183990
专题	中国科学院金属研究所
通讯作者	Zheng, Liya; Li, Bin; Wang, Jingyang
作者单位	1.Sun Yat Sen Univ, Sch Mat, Shenzhen Campus, Shenzhen 518107, Peoples R China 2.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China 3.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	Tian, Zhilin,Ming, Keyu,Zheng, Liya,et al. In-situ observation and mechanism of calcium-magnesiumalumina-silicate (CMAS) melts-induced degradation of RE₂SiO₅ (RE = Tb, Dy, Ho, Y, Er, Tm, and Yb) ceramics at 1500 °C[J]. JOURNAL OF ADVANCED CERAMICS,2023,12(12):2315-2330.
APA	Tian, Zhilin.,Ming, Keyu.,Zheng, Liya.,Chen, Zhilin.,Zhou, Fan.,...&Wang, Jingyang.(2023).In-situ observation and mechanism of calcium-magnesiumalumina-silicate (CMAS) melts-induced degradation of RE₂SiO₅ (RE = Tb, Dy, Ho, Y, Er, Tm, and Yb) ceramics at 1500 °C.JOURNAL OF ADVANCED CERAMICS,12(12),2315-2330.
MLA	Tian, Zhilin,et al."In-situ observation and mechanism of calcium-magnesiumalumina-silicate (CMAS) melts-induced degradation of RE₂SiO₅ (RE = Tb, Dy, Ho, Y, Er, Tm, and Yb) ceramics at 1500 °C".JOURNAL OF ADVANCED CERAMICS 12.12(2023):2315-2330.