磁铅石结构六铝酸盐热障涂层的研究现状  

Research Status of Hexaaluminate Thermal Barrier Coatings with Magnetoplumbite Structure

作　　者：黄亮亮[1] 孟惠民[1] 陈龙[1] 

机构地区：[1]北京科技大学新材料技术研究院,北京100083

出　　处：《材料工程》2013年第12期92-99,共8页Journal of Materials Engineering

摘　　要：六铝酸盐材料因其独特的磁铅石结构而具有非常好的高温相稳定性和热物理性能,是一类使用温度可以超过1200℃,而取代目前经典的氧化钇部分稳定二氧化锆的重要高温热障涂层候选材料。本文详细综述了六铝酸盐的结构特征、合成方法、物理性能和抗热震性能,并总结了目前对其失效机理及涂层性能改进的研究现状,指出了六铝酸盐热障涂层系统的发展方向。Hexaaluminate materials have excellent high-temperature phase stability and thermophysical properties for its special magnetoplumbite structure. It has the potential to substitute the state-of-the- art yttria partially stabilized zirconia （YSZ） thermal barrier coatings and will be applied at the temper ature above 1200℃. The structure characteristics, synthesis methods, physical properties and thermal shock resistance of hexaaluminate, and summarized its research status on failure mechanism and coat- ing performance improvements were mainly reviewed in this article. The direction of development on the hexaaluminate thermal barrier coating system was proposed.

关 键 词：热障涂层 六铝酸盐 磁铅石 失效机理 研究现状 

分 类 号：TB35[一般工业技术—材料科学与工程]