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General trend on the phase stability and corrosion resistance of rare earth monosilicates to molten calcium magnesium aluminosilicate at 1300 degrees C
Tian, Zhilin; Zhang, Jie; Zheng, Liya; Hu, Wanpeng; Ren, Xiaomin; Lei, Yiming; Wang, Jingyang
2019-03-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume148Pages:281-292
AbstractThermochemical reactions between rare earth (RE) monosilicates (RE2SiO5) and molten calcium-magnesium-aluminosilicate (CMAS) at 1300 degrees C were investigated. Some RE2SiO5 (RE = Tb, Dy, and Ho) dissolve readily into CMAS melts and thereby, crystalline Ca2RE8(SiO4)(6)O-2 reprecipitate. Other RE2SiO5 (RE = Tm, Yb, and Lu) resist CMAS attack, and a continuous layer of Ca2RE8(SiO4)(6)O-2 establishes at the interface. The recession of RE2SiO5 is related to RE ionic radius. RE2SiO5 with small RE ionic radius exhibits good CMAS corrosion resistance due to its low reactivity with CMAS. This result is consistent with the same trend of difference in the optical basicity of RE2SiO5/CMAS.
KeywordRare earth silicates Corrosion Calcium-magnesium-aluminosilicate Environmental barrier coating materials
Indexed BySCI
Language英语
WOS IDWOS:000457950400027
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81328
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Tian, Zhilin,Zhang, Jie,Zheng, Liya,et al. General trend on the phase stability and corrosion resistance of rare earth monosilicates to molten calcium magnesium aluminosilicate at 1300 degrees C[J]. CORROSION SCIENCE,2019,148:281-292.
APA Tian, Zhilin.,Zhang, Jie.,Zheng, Liya.,Hu, Wanpeng.,Ren, Xiaomin.,...&Wang, Jingyang.(2019).General trend on the phase stability and corrosion resistance of rare earth monosilicates to molten calcium magnesium aluminosilicate at 1300 degrees C.CORROSION SCIENCE,148,281-292.
MLA Tian, Zhilin,et al."General trend on the phase stability and corrosion resistance of rare earth monosilicates to molten calcium magnesium aluminosilicate at 1300 degrees C".CORROSION SCIENCE 148(2019):281-292.
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