0.92Y0.08O1.96（YSZ）增韌稀土復合氧化物LaTi2Al9O19（LTA）顆粒通過噴霧干燥制備出噴涂粉體，采用不同溫度對其進行煅燒，并研究不同溫度的熱處理對噴霧干燥粉體的流動性、松裝密度和形貌的影響。結果表明：未經熱處理的噴霧干燥粉體呈現出疏松結構，粒徑為40~80 μm。經過熱處理后，LTA-YSZ顆粒之間的結合更加緊密，在1100 ℃下煅燒的粉體具有最好的噴霧特性和形貌。通過等離子噴涂進行沉積制備的LTA-YSZ涂層呈現良好的層狀結構，并伴有缺陷。;The nano/submicron scaled spraying powders of lanthanum titanium aluminum oxide LaTi2Al9O19 (LTA) toughened by yttria stabilized zirconia Zr0.92Y0.08O1.96 (YSZ) were prepared via spray drying and then calcined at different temperatures. The effect of heat treatment on the flowability, apparent density, and morphology of the spray-dried powders was investigated. Results show that the spray-dried powders have loose structure with the size of 40~80 μm. The cohesion between LTA-YSZ particles becomes stronger after calcination. The spray-dried powders calcined at 1100 °C achieve the optimal spraying characteristics and morphology, and therefore are deposited via air plasma spraying (APS) to obtain LTA-YSZ coatings which show a good lamellar structure with defects."/>