Core-shell CaF₂@ZrO₂ powders were prepared by sol method combined with centrifugal atomization drying, aiming at preventing CaF₂ from burning during the APS deposition of YSZ-based abradable seal coating. The microstructure, chemical composition, hardness and wear behavior of the YSZ coating, the YSZ-10CaF₂ coating and the YSZ-10CaF₂@ZrO₂ coating were comparatively investigated. The results suggested that the core-shell powders effectively protected CaF₂, where the amount of CaF₂ remained in the YSZ-10CaF₂@ZrO₂ coating was higher than that in the YSZ-10CaF₂ coating. The YSZ coating had the highest average hardness of 97.3 HR45Y and exhibited a mixed wear mechanism of adhesive and fatigue wear with a friction coefficient of 0.23 and a volume wear rate of 7.28 mm³/N m. Contributed to soft and self-lubricating CaF₂, the hardness of the YSZ-10CaF₂ and YSZ-10CaF₂@ZrO₂ coatings slightly declined to 95.1 and 94.5 HR45Y correspondingly. The YSZ-10CaF₂ coating showed a mixed wear mechanism of abrasive and fatigue wear with a friction coefficient of 0.14 and a volume wear rate of 4.67 mm³/N m. Moreover, the YSZ-10CaF₂@ZrO₂ coatings showed a mixed wear mechanism of reduced adhesive and fatigue wear with a friction coefficient of 0.10 and a volume wear rate of 2.66 mm³/N m.

为了防止YSZ基耐磨密封涂层APS沉积过程中CaF ₂燃烧，采用溶胶法结合离心雾化干燥制备核壳型CaF ₂ @ZrO _{2粉体。对比研究了YSZ涂层、YSZ-10CaF 2}涂层和YSZ-10CaF ₂ @ZrO ₂涂层的显微组织、化学成分、硬度和磨损行为。结果表明，核壳型粉末有效保护了CaF ₂，其中CaF ₂残留在YSZ-10CaF ₂ @ZrO ₂涂层中的量高于YSZ-10CaF _{2中的量。}涂层。YSZ涂层的平均硬度最高，为97.3 HR45Y，表现出粘着磨损和疲劳磨损的混合磨损机制，摩擦系数为0.23，体积磨损率为7.28 mm ³ /N m。_{由于CaF 2}软化和自润滑，YSZ-10CaF ₂和YSZ-10CaF ₂ @ZrO ₂涂层的硬度相应略有下降，分别为95.1和94.5 HR45Y。YSZ-10CaF ₂涂层表现出磨粒磨损和疲劳磨损的混合磨损机制，摩擦系数为0.14，体积磨损率为4.67 mm ³ /N m。此外，YSZ-10CaF ₂ @ZrO ₂涂层显示出一种减少粘附磨损和疲劳磨损的混合磨损机制，摩擦系数为 0.10，体积磨损率为 2.66 mm ³ /N m。