为了满足新型航空发动机的性能要求，需要开发出能在超高温条件下服役的热障涂层材料。近年来已有多种陶瓷材料被证实在热障涂层领域具有发展前景，在这之中，稀土锆酸盐材料有着高温下热导率较低与稳定性良好的特点，其中又以锆酸钆材料的热导率最低，热膨胀系数最高。概述了锆酸钆材料的结构特点，对其在高温下发生的有序无序转变进行了介绍，总结了原因及变化规律。简要分析了与其他材料相比，锆酸钆材料具有良好热性能的原因;归纳了粉末制备过程中常用的两种方法:固相法与液相法，在此基础上，总结了近年来不同制备方法与粉末团聚过程中工艺与参数的研究现状;最后，提出了锆酸钆材料在实际应用到热障涂层时存在的缺陷:断裂韧性与热膨胀系数较低，这就导致了单层锆酸钆涂层成形难度大，热循环寿命低。针对这一问题，重点综述了国内外对锆酸钆材料及热障涂层的改性方法，主要有掺杂改性、材料复合、涂层结构设计以及涂层制备技术，同时展望了新型热障涂层材料结合先进制备技术的发展趋势。

In order to meet the performance requirements of new aero-engines, it is necessary to develop thermal barrier coating materials that can be used under ultra-high temperature conditions. In recent years, there are many ceramic materials that have been proved to be promising in the field of thermal barrier coatings. Among these materials, the rare earth zirconate has the characteristics of low thermal conductivity and good stability at high temperature, while the zirconate gadolinium has the lowest thermal conductivity and the highest thermal expansion coefficient. The structural characteristics of zirconate gadolinium materials were overviewed. The order-disorder transition at high temperature was introduced and the reasons and change rules were summarized. The reasons why the zirconate gadolinium had good thermal properties compared with other materials were also briefly analyzed. Two methods commonly used in powder preparation process which named solid phase method and liquid phase method were summarized. On this basis, the research status of different preparation methods and the process both parameters of powder agglomeration in recent years were concluded. Finally, the defects of zirconate gadolinium in the application of thermal barrier coatings were put forward, such as the lower fracture toughness and thermal expansion coefficient, leading to the difficulty in forming single-layer zirconate gadolinium coatings and the lower thermal cycle life. In order to solve this problem, the modification methods of zirconate gadolinium and thermal barrier coatings at home and abroad were reviewed, including the doping modification, the material composite, the coating structure design and the coating preparation technology. At the same time, the development trend of new thermal barrier coatings materials combined with the advanced preparation technology was prospected.