无机材料学报2024，Vol.39Issue(6)：647-661,15.DOI:10.15541/jim20240004
CMC-EBC损伤耦合机理及一体化设计研究进展
Progress of Damage Coupling Mechanism and Integrated Design Method for CMC-EBC
摘要
Abstract
The integration of ceramic matrix composites with environmental barrier coatings(CMC-EBC)represents the most promising thermal structural material system in the aerospace field.This paper provides an overview of the advancements in research on the failure mechanisms and numerical models of CMC-EBC.It commences with a concise review of the evolution and primary fabrication techniques of CMC-EBC material system.Subsequently,it summarizes the typical damage modes and failure mechanisms of CMC-EBC under operational conditions,identifying that the interplay between the CMC preform structure,porosity defects,and EBC inner cracks is a critical determinant of the material's lifespan.However,current mechanistic studies are chiefly focused on the performance evaluation of the coating itself and its susceptibility to environmental factors,disregarding the synergistic effects of the coating and composite architecture during damage progression.This review proceeds with an examination of the history and current status of research on failure simulation and prediction models for CMC-EBC,highlighting issues related to modeling environmental factors and simulating coupled damage evolution.Though much effort has directly developed separate failure models for CMC and EBC,predicting the failure of CMC-EBC components should account for the coupling effects between damage evolution and microstructure.In conclusion,this review offers a perspective on development and service performance prediction methods for CMC-EBC system,which points out that considering the interdependent failure modes of the CMC substrate and EBC is pivotal.Integrated design and analysis of structural and functional aspects are emerging trends in CMC-EBC component research.关键词
陶瓷基复合材料/环境障碍涂层/损伤耦合/失效模型/一体化设计/综述Key words
ceramic matrix composite/environmental barrier coating/damage coupling/failure model/integrated design/review分类
通用工业技术引用本文复制引用
方光武,谢浩元,张华军,高希光,宋迎东..CMC-EBC损伤耦合机理及一体化设计研究进展[J].无机材料学报,2024,39(6):647-661,15.基金项目
国家科技重大专项(Y2019-I-0018-0017)National Science and Technology Major Project(Y2019-I-0018-0017) （Y2019-I-0018-0017）
