Thermal barrier coatings (TBCs) play a vitally important role in protecting the hot parts of a gas turbine from high temperature and corrosion effectively. More and more attention has been paid to the performance modification of ZrO₂-based ceramics and seeking for new ceramic materials to meet requirements of gas turbine TBCs. The working principle, merits, and demerits of main technologies for coating preparation are elaborated in this paper, and the properties of new ceramic materials are reviewed. It is found that the thermal conductivity, thermal stability, mechanical properties, and other performances of traditional ZrO₂-based ceramics could be improved effectively by doping modification. The emphases for new ceramic materials research were put on pyrochlores, magnetoplumbites, rare-earth tantalates, etc. Rare-earth tantalates with great potentials as new top ceramic materials were described in detail. In the end, the development directions of advanced top ceramic coatings, combining doping modification with preparation technology to regulate and control structure property of high-performance ceramic material, were put forward.

中文翻译：

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燃气轮机热障涂层陶瓷材料的研究进展

热障涂层（TBC）在有效保护燃气轮机的高温部件免受高温和腐蚀的影响中起着至关重要的作用。越来越多的注意力转移到基于ZrO ₂的陶瓷的性能改进上，并寻求新的陶瓷材料来满足燃气轮机TBC的要求。阐述了涂层制备主要技术的工作原理，优缺点，并综述了新型陶瓷材料的性能。发现传统ZrO ₂的导热系数，热稳定性，机械性能和其他性能掺杂改性可以有效地改善基体陶瓷。新型陶瓷材料的研究重点放在烧绿石，磁铅石，稀土钽酸盐等上。详细介绍了作为新型新型顶级陶瓷材料具有巨大潜力的稀土钽酸盐。最后，提出了将掺杂改性与制备技术相结合来调控高性能陶瓷材料结构性能的高级陶瓷涂层的发展方向。