Corrosion resistance and microstructural evolution of Yb-Al-Si-O glass-ceramics under molten Ca-Mg-Al-Si environment at 1350 ° C

被引：0
|
作者：
Meng, Xinyu [1 ]
Ma, Yujie [1 ]
Guo, Chun [1 ]
Chen, Bo [1 ]
Yang, Shaobo [1 ]
Deng, Juanli [2 ]
Fan, Shangwu [1 ]
机构：
[1] Northwestern Polytech Univ, Sci & Technol Thermostruct Composites Mat Lab, Xian 710072, Shaanxi, Peoples R China
[2] Changan Univ, Sch Mat Sci & Engn, Xian 710064, Shaanxi, Peoples R China
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2024年 / 44卷 / 13期
关键词：
Yb-Al-Si-O; Glass-ceramics; CMAS corrosion; Crystallization; RARE-EARTH DISILICATES; BARRIER COATINGS; WATER-VAPOR; MATRIX COMPOSITES; OXIDATION; BEHAVIOR; SILICA;
D O I：
10.1016/j.jeurceramsoc.2024.05.043
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The intrinsic characteristics of Yb 2 O 3 -Al 2 O 3 -SiO 2 (YbAS) glass-ceramics and their resistance to corrosion by molten calcium magnesium aluminosilicate (CMAS) at 1350 degrees C were systematically investigated. YbAS glassceramics, characterized by diverse compositions, maintaining phase stability over extended durations at elevated temperatures. After CMAS corrosion for 50 h, the main reaction phases were CaAl 2 Si 2 O 8 and Ca 2 Yb 8 (SiO 4 ) 6 O 2 , accompanied by multiple ion solid solution garnet in certain components. The glass component positioned along the eutectic line of Yb 2 Si 2 O 7 and mullite, with an OB value marginally exceeding that of CMAS, exhibits superior corrosion resistance to CMAS. This finding offers valuable insights for the subsequent design of environmental barrier coatings (EBCs).
引用
收藏
页码：7891 / 7903
页数：13
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