Bilayer thermal barriers coatings of Dense Ceria-Yttria-Stabilized Zirconia (D-CYSZ)/Yttria-Stabilized Zirconia (YSZ) were deposited onto Inconel 625 using atmospheric plasma spray (APS). The thickness of the d-CYSZ layer varied (0, 50, 100, and 150 μm), but the total thickness of the system was kept at 300 μm. The thermo-mechanical resistance of the multilayer system was evaluated through thermal shock tests, in which the bilayer systems evaluated exceeded 500 cycles with percentages of delamination of the coating below 20 % of the exposed area and showed higher thermomechanical resistance than a conventional YSZ system. Hot corrosion (HC) resistance of the bilayer system was evaluated using a salt mixture of 32 wt.% Na₂SO₄ and 68 wt.% V₂O₅ at 900 °C. The systems with a d-CYSZ layer showed higher resistance to HC, exhibiting fewer changes into the microstructure and presence of the monoclinic phase despite the presence of vertical cracks in the microstructure.

使用大气压等离子喷涂（APS）将密集的二氧化铈-氧化钇稳定的氧化锆（D-CYSZ）/氧化钇稳定的氧化锆（YSZ）的双层热障涂层沉积在Inconel 625上。d -CYSZ层的厚度变化（0、50、100和150μm），但系统的总厚度保持在300μm。通过热冲击试验评估了多层系统的热机械电阻，其中所评估的双层系统超过500个循环，涂层的分层百分比低于暴露面积的20％，并且显示出比常规YSZ系统更高的热机械电阻。使用32 wt。％Na ₂ SO ₄和68 wt。％V ₂的盐混合物评估了双层系统的耐热腐蚀（HC）能力O ₅在900°C。具有d -CYSZ层的系统对HC的抵抗力更高，尽管在微观结构中存在垂直裂纹，但对微观结构和单斜晶相的变化较小。