Doped effect of Yb on enhancing resistance to calcium-magnesium-alumina-silicate corrosion of Sm2(Zr0.7Ce0.3)2O7

被引：4
|
作者：
Dong, Meijing [1 ]
Liang, Wenping [1 ]
Miao, Qiang [1 ]
Zhao, Hui [1 ]
Liu, Ruixiang [1 ]
Yan, Rongxue [1 ]
Zang, Kai [1 ]
Yao, Wei [1 ]
Gao, Xiguang [2 ]
Song, Yindong [2 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 211106, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Key Lab Aeroengine Thermal Environm & Struct, Minist Ind & Informat Technol,Coll Energy & Power, Jiangsu Prov Key Lab Aerosp Power Syst,Coll Energy, Nanjing 210016, Peoples R China
来源：
CORROSION SCIENCE | 2023年 / 224卷
基金：
中国国家自然科学基金;
关键词：
A. Molten salts; A; Ceramic; B; XRD; SEM; C. Hot corrosion; THERMAL BARRIER COATINGS; HIGH-TEMPERATURE ATTACK; THERMOPHYSICAL PROPERTIES; CMAS; CERAMICS; GD2ZR2O7; GLASS;
D O I：
10.1016/j.corsci.2023.111542
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Four kinds of (Sm1-xYbx)2(Zr0.7Ce0.3)2O7 (x = 0, 0.1, 0.2, 0.3) ceramics with different contents of Yb were prepared by the solid-phase reaction. Their thermochemical reaction behaviors with calcium-magnesium-alumina-silicate (CMAS) at 1300 degrees C were investigated. Among them, (Sm0.7Yb0.3)2(Zr0.7Ce0.3)2O7 has the best corrosion resistance to CMAS. The increase of Yb content can accelerate the formation rate of apatite, preventing the ceramic layer from erosion of CMAS and improving the strain tolerance of the ceramic. In addition, the CMAS wetting, corrosion process and failure mechanisms were discussed by high-temperature field wetting and transmission electron microscopy.
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页数：13
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