The results of SEM and EDXA show that the grain of Y_2O_3 is symmetrical distributed in the coating via Y_2O_3 modified,and the content of Al on the surface is up to 30.65%.

• SEM及EDXA观察结果表明；经Y_2O_3改性的渗层；Y2O3颗粒均匀分布于渗层中；且表面铝含量达到30.；65%25。