摘要
热障涂层(thermal barrier coating, TBC)是降低航空发动机、燃气轮机热端部件表面温度的关键技术。随着发动机服役温度升高,TBC工作环境更加恶劣,传统的Y_(2)O_(3)部分稳定ZrO_(2)(yttria partially stabilized zirconia, YSZ)TBC面临着相变、高温烧结、环境沉积物(CMAS)腐蚀等严重问题,服役寿命大幅下降,严重威胁发动机安全运行,急需开发新型TBC材料。随着计算材料学和机器学习技术的发展,传统上依靠实验来寻找新型TBC材料的方法逐渐被理论计算所取代。第一性原理作为一种有效分析方法,能够大幅度降低新材料的研发周期与成本,对新型TBC材料的开发起到极大推进作用。利用第一性原理计算可以预测TBC材料的热物理性能、力学性能以及TBC在复杂服役环境下的稳定性。本文总结了第一性原理在新型TBC材料开发、涂层CMAS腐蚀行为和机理研究方面的应用进展,并对第一性原理在TBC研究领域的发展前景进行展望。
thermal barrier coatings(TBC)is a pivotal technology in reducing the surface temperature of the aero engines hot-sections.As the engine service temperature rises and the working environments of TBC become harsher,conventional Yttrium-stabilized zirconia(YSZ)TBC is facing serious problems such as phase transition,high temperature sintering,and corrosion of environmental deposits(CMAS),which leads to a significant decrease in service life and threatens the safe operation of the engine.Therefore,the development of new TBC materials is urgently needed.With the development of computational materials science and machine learning techniques,the traditional method to find novel TBC materials which relying on experiments is gradually replaced by theoretical computational methods.As an effective analysis method,the first-principle can significantly reduce the material development period as well as related cost,thus playing an important role in promoting the research of TBCs.The first-principle calculation can predict the thermophysical and mechanical properties of TBC materials as well as the stability of coatings in complex service environments.This review summarizes the application of the first-principle calculation in the development of new TBC materials,and CMAS corrosion behaviour and mechanism of TBCs.Finally,the future development of the first-principle in the field of TBC research was forecasted.
作者
蔺奕龙
邹兰欣
戴建伟
郑海忠
郭磊
叶福兴
刘洪丽
LIN Yi-Long;ZOU Lan-Xin;DAI Jian-Wei;ZHENG Hai-Zhong;GUO Lei;YE Fu-Xing;LIU Hong-Li(School of Materials Science and Engineering,Tianjin University,Tianjin 300072,China;Tianjin Key Laboratory of Advanced Joining Technology,Tianjin University,Tianjin 300072,China;AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;School of Materials Science and Engineering,Nanchang Hangkong University,Nanchang 300063,China;School of Aeronautical Engineering Institute,Civil Aviation University of China,Tianjin 300300,China)
出处
《现代技术陶瓷》
2025年第1期24-51,共28页
Advanced Ceramics
关键词
热障涂层
第一性原理
材料研发
热物理性能
力学性能
CMAS腐蚀
thermal barrier coating
first-principles
development of new TBC materials
thermophysical property
mechanical property
CMAS corrosion
