无机材料学报, 2022, 37 (12): 1259, 网络出版: 2023-01-12
LaMeAl11O19/YSZ热障涂层热力学性能和热循环寿命
Thermodynamic Properties and Thermal Cycling Lifetimes of LaMeAl11O19/YSZ Thermal Barrier Coatings
图 & 表
图 3. 不同温度下三种涂层的(a) 热导率和(b)3~5 μm单波段的红外发射率
Fig. 3. (a) Thermal conductivity and (b) single band (3-5 µm) infrared emissivity of freestanding coatings at different temperatures
图 4. 三种涂层的维氏硬度和断裂韧性
Fig. 4. Vickers hardness and fracture toughness of freestanding coatings
图 5. 热循环过程中涂层表面和金属基底的温度变化曲线
Fig. 5. Temperature changes of surface of coatings and metallic substrate during thermal cycling
图 6. 沉积态涂层截面和表面SEM照片
Fig. 6. SEM images of cross-sections and top surfaces of as-sprayed coatings
图 7. 热循环失效后三种涂层在不同位置的截面SEM照片及其元素分布图
Fig. 7. SEM images of cross-sections and elemental mappings of failed coatings at different positions
表 1主要实验用化学试剂
Table1. Chemical reagents for main experiments
|
表 2等离子喷涂的参数
Table2. Parameters of APS
|
蔚海浪, 曹学强, 邓龙辉, 蒋佳宁. LaMeAl11O19/YSZ热障涂层热力学性能和热循环寿命[J]. 无机材料学报, 2022, 37(12): 1259. Hailang WEI, Xueqiang CAO, Longhui DENG, Jianing JIANG. Thermodynamic Properties and Thermal Cycling Lifetimes of LaMeAl11O19/YSZ Thermal Barrier Coatings[J]. Journal of Inorganic Materials, 2022, 37(12): 1259.