Rare Earth Silicate Environmental Barrier Coating Material: High-Entropy Design and Resistance to CMAS Corrosion

doi:10.11900/0412.1961.2022.00556

IMR OpenIR

	Rare Earth Silicate Environmental Barrier Coating Material: High-Entropy Design and Resistance to CMAS Corrosion
	Wang Jingyang; Sun Luchao; Luo Yixiu; Tian Zhilin; Ren Xiaomin; Zhang Jie
通讯作者	Wang Jingyang(jywang@imr.ac.cn)
	2023-04-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	59 期号:4 页码:523-536
摘要	High thrust-to-weight ratios and high propulsion are necessary requirements for revolutionizing the aviation technology. Emerging hot-section engine components are currently focused on SiCf/ SiC ceramic matrix composite materials, wherein the environmental barrier coatings (EBCs) are needed to protect the engine components from the harsh combustion environment. Due to their matched thermal expansion coefficient and good chemical compatibility with the SiC f/SiC ceramic matrix composites substrates, rare earth (RE) silicates have been identified as promising EBC materials. However, they cannot provide reliable protection for the engine components when the working temperature rises over 1300 degrees C, mainly because of their poor resistance to the low melting point oxides CaO-MgO-Al2O3-SiO2 (CMAS) melts. This review discusses the current state of research on the CMAS corrosion resistance of RE silicates. First, the interaction and degradation mechanisms of single-RE-component RE2SiO5 and RE2Si2O7 are discussed, and the different roles of RE species in reacting with CMAS melts are summarized. Then, the concept of high-entropy design is introduced, enabling synergistic optimization of the effects of multiple RE species in terms of CMAS resistance, by delicately designing the multi-RE-component (nRE(x)) compositions. Such a strategy leads to enhanced CMAS corrosion resistance in some novel (nRE(x))(2)SiO5 and (nRE(x))(2)Si2O7 materials. Finally, potential prospects, opportunities, and challenges for high-entropy RE silicates as EBC materials are discussed
关键词	environmental barrier coating rare earth silicate high-entropy ceramic CMAS corrosion
资助者	National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Science and Technology Major Project of China ; Key Research Program of the Chinese Academy of Sciences ; Liaoning Revitalization Talents Program
DOI	10.11900/0412.1961.2022.00556
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52002376] ; National Natural Science Foundation of China[U21A2063] ; National Key Research and Development Program of China[2021YFB3702300] ; National Science and Technology Major Project of China[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	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000980757300009
出版者	SCIENCE PRESS
引用统计	被引频次：5[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/321006/177868
专题	中国科学院金属研究所
通讯作者	Wang Jingyang
作者单位	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	Wang Jingyang,Sun Luchao,Luo Yixiu,et al. Rare Earth Silicate Environmental Barrier Coating Material: High-Entropy Design and Resistance to CMAS Corrosion[J]. ACTA METALLURGICA SINICA,2023,59(4):523-536.
APA	Wang Jingyang,Sun Luchao,Luo Yixiu,Tian Zhilin,Ren Xiaomin,&Zhang Jie.(2023).Rare Earth Silicate Environmental Barrier Coating Material: High-Entropy Design and Resistance to CMAS Corrosion.ACTA METALLURGICA SINICA,59(4),523-536.
MLA	Wang Jingyang,et al."Rare Earth Silicate Environmental Barrier Coating Material: High-Entropy Design and Resistance to CMAS Corrosion".ACTA METALLURGICA SINICA 59.4(2023):523-536.