Abstract The formation of ZrSiO4 (zircon), 3Al2O3·2SiO2 (mullite), and amorphous SiO2 as healing products from the oxidation reaction of the SiC (silicon carbide) self-healing agent, occurred after 250 h of thermal exposition (ten thermal cycles of 25 h at 1100 °C). By SEM and TEM analysis of adhesion fracture surfaces, both zircon and mullite complex oxides were identified mainly along micro-cracks adjacent to theTGO-TC interface and forming bridges-like bonds with the ZrO2-TC and Al2O3-TGO compounds. Then adherence resistance seems to be enhanced by the formation of these bonds and by the mere presence of self-healing products retarding or blocking crack propagation.

中文翻译：

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通过在循环氧化条件下形成锆石和莫来石作为自修复反应产物来增强 8YSZ 热障涂层的抗粘附性

摘要 ZrSiO4（锆石）、3Al2O3·2SiO2（莫来石）和无定形 SiO2 作为 SiC（碳化硅）自愈剂氧化反应的愈合产物，发生在 250 小时的热暴露（10 个热循环）之后。在 1100 °C 下 25 小时）。通过粘附断面的SEM和TEM分析，锆石和莫来石复合氧化物主要沿着TGO-TC界面附近的微裂纹识别，并与ZrO2-TC和Al2O3-TGO化合物形成桥状键。然后粘附阻力似乎通过这些键的形成和仅仅通过阻止或阻止裂纹扩展的自修复产品的存在而增强。