Research progress of thermal barrier coatings with double bonding layer structure

doi:10.3969/j.issn.1001-1935.2026.04.014

Abstract

Abstract: As one of the core technologies for raising the inlet temperature of gas turbine engines,thermal barrier coatings play an important role in improving equipment operational efficiency and extending service life.The bonding layer,which serves to relieve thermal stress and improve the oxidation and corrosion resistance of materials,directly affects the service performance of thermal barrier coatings.Conventional thermal barrier coatings with a single bonding layer have certain limitations in high-temperature service,thus many researchers have proposed the double bonding layer structure.In this work,the application fields and typical structures of thermal barrier coatings as well as the research progress of single and double bonding layers from the aspects of material system and preparation process were firstly introduced.Then,the effects of the optimized design of the double bonding layer structure on the performance of thermal barrier coatings were discussed from three perspectives:multi-layer gradient structure,thickness parameters and interface roughness.Finally,the existing problems in current researches and future research directions were proposed.

Key words: thermal barrier coating, double bonding layer structure, element diffusion, thermally grown oxide, oxidation resistance, service performance

摘要： 热障涂层作为燃气涡轮发动机提高涡轮进口温度的核心技术之一,在提高设备运行效率与延长使用寿命方面发挥重要作用。用于缓解热应力、提高材料的抗氧化性和抗腐蚀性的黏结层可以直接影响热障涂层的服役性能。由于常规单黏结层结构热障涂层在高温服役过程中具有一定的局限性,众多研究者提出了双黏结层结构。本文首先阐述了热障涂层的应用领域和典型结构,通过黏结层的材料体系和制备工艺两个方面,介绍了单层黏结层和双黏结层的研究进展;然后,从多层梯度结构、厚度参数和界面粗糙度三个方面介绍了双黏结层结构优化设计对热障涂层性能的影响;最后,提出了当前研究存在的问题和今后的工作方向。

关键词: 热障涂层, 双黏结层结构, 元素扩散, 热生长氧化物, 抗氧化性, 服役性能

CLC Number:

TM21

Ni Wei, Zhao Shixian, Wang Wenwu, Li Hongyu, Li Lingfeng, Li Hongxia. Research progress of thermal barrier coatings with double bonding layer structure[J]. Refractories, 2026, 60(4): 351-356.

倪巍, 赵世贤, 王文武, 李虹屿, 李凌锋, 李红霞. 双黏结层结构热障涂层的研究进展[J]. 耐火材料, 2026, 60(4): 351-356.

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URL: http://www.nhcl.cn/EN/10.3969/j.issn.1001-1935.2026.04.014

http://www.nhcl.cn/EN/Y2026/V60/I4/351

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