@article{DONG2022, 
author = {Yu DONG and Ke REN and Qiankun WANG and Gang SHAO and Yiguang WANG},
title = {Interaction of multicomponent disilicate (Yb0.2Y0.2Lu0.2Sc0.2Gd0.2)2Si2O7 with molten calcia-magnesia-aluminosilicate},
year = {2022},
journal = {Journal of Advanced Ceramics},
volume = {11},
number = {1},
pages = {66-74},
keywords = {environmental barrier coating (EBC) materials, rare-earth (RE) disilicates, multicomponent ceramics, calcia-magnesia-aluminosilicate (CMAS) interaction},
url = {https://www.sciopen.com/article/10.1007/s40145-021-0517-7},
doi = {10.1007/s40145-021-0517-7},
abstract = {Environmental barrier coating (EBC) materials that are resistant against molten calcia-magnesia-aluminosilicate (CMAS) corrosion are urgently required. Herein, multicomponent rare-earth (RE) disilicate ((Yb0.2Y0.2Lu0.2Sc0.2Gd0.2)2Si2O7, (5RE)2Si2O7) was investigated with regard to its CMAS interaction behavior at 1400 ℃. Compared with the individual RE disilicates, the (5RE)2Si2O7 material exhibited improved resistance against CMAS attack. The dominant process involved in the interaction of (5RE)2Si2O7 with CMAS was reaction-recrystallization. A dense and continuous reaction layer protected the substrate from rapid corrosion at high temperatures. The results demonstrated that multicomponent strategy of RE species in disilicate can provide a new perspective in the development of promising EBC materials with improved corrosion resistance.}
}