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Water vapor corrosion behaviors of plasma sprayed ytterbium silicate coatings
Wang, YW; Niu, YR; Zhong, X; Shi, MH; Mao, FQ; Zhang, L; Li, QL; Zheng, XB
2020-12-15
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Issue18Pages:28237
SubtypeArticle
AbstractIn this work, the water vapor corrosion behaviors of plasma sprayed ytterbium silicate coatings with different contents of Yb2O3, Yb2SiO5 and Yb2Si2O7 phases were evaluated at 1400 degrees C for 100-300 h and the influence of phase compositions on the corrosion behaviors was analyzed. The results showed that severe corrosion took place in the Yb2Si2O7-rich coating with a porous reacted layer with a thickness about 20 mu m after 300 h corrosion. The Yb2O3 phase in the Yb2O3-rich coatings volatilized, lefting a relatively dense reacted layer with a thickness about 5-6 mu m after the same corrosion time. A layer composed of Yb2SiO5 was formed on the surface of all the corroded ytterbium silicate coatings. This study may provide theoretical basis for selecting rare-earth silicate environmental barrier coatings (EBCs) with excellent performance.
DOI10.1016/j.ceramint.2020.07.324
WOS KeywordENVIRONMENTAL BARRIER COATINGS ; THERMOMECHANICAL PROPERTIES ; STRUCTURAL CERAMICS ; MATRIX COMPOSITES ; PHASE-COMPOSITION ; OXIDATION ; MICROSTRUCTURE ; MECHANISM ; MULLITE ; CMCS
Language英语
WOS Research AreaMaterials Science
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27581
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Wang, YW,Niu, YR,Zhong, X,et al. Water vapor corrosion behaviors of plasma sprayed ytterbium silicate coatings[J]. CERAMICS INTERNATIONAL,2020(18):28237.
APA Wang, YW.,Niu, YR.,Zhong, X.,Shi, MH.,Mao, FQ.,...&Zheng, XB.(2020).Water vapor corrosion behaviors of plasma sprayed ytterbium silicate coatings.CERAMICS INTERNATIONAL(18),28237.
MLA Wang, YW,et al."Water vapor corrosion behaviors of plasma sprayed ytterbium silicate coatings".CERAMICS INTERNATIONAL .18(2020):28237.
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