以抗CMAS腐蚀为目标的稀土硅酸盐环境障涂层高熵化设计与性能提升 |
王京阳, 孙鲁超, 罗颐秀, 田志林, 任孝旻, 张洁 |
Rare Earth Silicate Environmental Barrier Coating Material: High-Entropy Design and Resistance to CMAS Corrosion |
WANG Jingyang, SUN Luchao, LUO Yixiu, TIAN Zhilin, REN Xiaomin, ZHANG Jie |
图5 高熵稀土双硅酸盐(Er0.25Tm0.25Yb0.25Lu0.25)2Si2O7经1500℃ CMAS腐蚀反应4和50 h后样品截面的电子探针元素分析,以及单稀土主元双硅酸盐Yb2Si2O7和Lu2Si2O7经1500℃ CMAS腐蚀25 h后截面形貌[ |
Fig.5 Morphologies of the cross-sections of (Er0.25Tm0.25Yb0.25Lu0.25)2Si2O7 after CMAS corrosion at 1500oC for 4 h (a) and 50 h (c), together with corresponding EDS elements mapping results for 4 h (a-1-a-8) and 50 h (c-1-c-8) by electron probe microanalysis, compared with those of Yb2Si2O7 (b) and Lu2Si2O7 (d) after CMAS corrosion at 1500oC for 25 h[ |
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