适用于掺氢燃气轮机的新型环境/热障涂层

王铀, 张晓东, 郝佩, 韩旭, 邓路炜, 李国强, 魏福双, 吉祥

New Environmental/Thermal Barrier Coatings Suitable for Hydrogen Doped Gas Turbines

You WANG, Xiaodong ZHANG, Pei HAO, Xu HAN, Luwei DENG, Guoqiang LI, Fushuang WEI, Xiang JI

表1 几种潜在E/TBC涂层材料的热物理性能

Tab. 1 Thermophysical properties of several potential E/TBC coating materials

材料 热导率/[W/(m⋅K)] 热膨胀系数/(×10-6⋅K-1) Ni基高温合金[34] — 14~16 8YSZ[34] 2.12(1 000 ℃) 9~11 Gd2Zr2O7[9] 1.91 7.91~9.18 5RE2Zr2O7[35] 0.7~1.5(300~1 300 ℃) 10~11(500~1 400 ℃) Yb2SiO5涂层[36] 0.68~1.13(200~1 400 ℃) 6.9~7.6(200~1 400 ℃) Yb2Si2O7涂层[36] 0.78~1.37(200~1 400 ℃) 3.3~5.2(200~1 400 ℃) (5RE0.2)2Si2O7[37] 1.146(1 100 ℃) 1.96~3.95(300~1 300 ℃)