富铝CMAS对稀土硅酸盐环境障涂层的腐蚀行为与机制研究

范栋, 钟鑫, 王亚文, 张振忠, 牛亚然, 李其连, 张乐, 郑学斌

Corrosion Behavior and Mechanism of Aluminum-rich CMAS on Rare-earth Silicate Environmental Barrier Coatings:

FAN Dong, ZHONG Xin, WANG Yawen, ZHANG Zhenzhong, NIU Yaran, LI Qilian, ZHANG Le, ZHENG Xuebin

表5 图5中标记区域的EDS元素组成

Table 5 EDS elemental compositions of the marked regions in Fig. 5

EDS/ (%, in atom) Gd Y Er Si O Ca Al Mg Point 1 24.48 — — 16.22 51.61 7.68 — — Point 2 1.05 — — 12.62 59.63 14.25 9.78 2.66 Point 3 — 26.70 — 15.78 50.12 7.40 — — Point 4 — 17.10 — 8.23 51.25 2.92 16.41 4.09 Point 5 — 0.94 — 14.23 57.36 13.94 11.98 1.54 Point 6 — — 28.80 12.77 52.22 6.22 — — Point 7 — — 7.12 13.05 49.26 7.08 18.26 5.24