热障涂层陶瓷层材料LnMgAl11O19(Ln=La, Nd)粉体的性能

李滢,陈小龙,孙超,宫骏

Preparation and Performance of LnMgAl11O19(Ln=La, Nd) Powders for Thermal Barrier Coating

Ying LI,Xiaolong CHEN,Chao SUN,Jun GONG

表3 共沉淀法制备的各前驱粉体平均晶粒尺寸

Table 3 The average grain size of the precursor powders prepared by co-precipitation (nm)

1000℃ 1100℃ 1200℃ 1300℃ 1400℃ 1500℃ Precursor powder 1 25.2 21.3 39.4 32.7 104.3 81.1 Precursor powder 2 - 17.9 23.9 30.4 37.06 76.4 Precursor powder 3 10.1 16.1 20.7 23.2 47.2 55.9 Precursor powder 5 9.5 14.0 51.6 22.0 45.0 72.5 Precursor powder 6 - 16.1 20.6 24.4 33.9 60.8