Abstract Yttria-stabilized zirconia thermal barrier coatings (YSZ TBCs) are prone to degradation by atmospheric contaminants such as volcanic ash, posing a serious threat to their durability. Here we demonstrate that hexagonal boron nitride (h-BN) additives to YSZ coatings (h-BN YSZ), exhibit resistance against volcanic ash interaction at 1250 °C. In preliminary tests performed under vacuum, h-BN YSZ coatings demonstrate greatly inhibited wetting against molten volcanic ash drops. Under oxidizing conditions, h-BN YSZ provide enhanced wetting and chemical resistance over conventional coatings. This study lays groundwork for the development of novel additives which are physico-chemically resilient against molten volcanic ash wetting.

中文翻译：

---

具有六方氮化硼添加剂的新型热障涂层，可抵抗熔融火山灰润湿

摘要 氧化钇稳定氧化锆热障涂层（YSZ TBCs）容易被火山灰等大气污染物降解，严重威胁其耐久性。在这里，我们证明了 YSZ 涂层 (h-BN YSZ) 中的六方氮化硼 (h-BN) 添加剂在 1250 °C 下表现出对火山灰相互作用的抵抗力。在真空下进行的初步测试中，h-BN YSZ 涂层表现出极大地抑制了对熔融火山灰滴的润湿。在氧化条件下，h-BN YSZ 比传统涂层具有更强的润湿性和耐化学性。这项研究为开发新型添加剂奠定了基础，这些添加剂在物理化学上具有抵抗熔融火山灰润湿的能力。