Research progress of nondestructive characterization technologies of aeroengine ceramic matrix composites

Abstract

With the widespread application of ceramic matrix composites in hot end components of advanced aeroengines，it becomes particularly important to conduct efficient and accurate nondestructive characterization of defects/ damages formed during the whole life cycle. Due to the complex preparation and forming process of ceramic matrix composites and the high heterogeneity and anisotropy caused by multiphase composite，the traditional nondestructive testing technology based on the assumption of global homogenization faces many challenges. Based on the application of ceramic matrix composites in aeroengine field，the typical defect/damage types and characteristics in the whole life cycle of ceramic matrix composites are analyzed. The research progress and application of nondestructive characterization techniques of ceramic matrix composites in recent years are reviewed，the main challenges faced by existing nondestructive characterization techniques are summarized，and the future development trend is prospected.

Keywords

• aeroengine
• hot end components
• ceramic matrix composites
• nondestructive characterization
• research progress