Development of an internal diameter spraying system for CoNiCrAlY/YSZ thermal barrier coatings: microstructure, properties, and engineering verification
Source abstract
Abstract
An internal diameter thermal barrier coating (TBC) system was developed using ID-HVOF for the bond coat and APS for the top coat to enable coating deposition within confined combustor and gas-duct geometries. Microstructural observations show that both layers exhibit uniform morphology, low porosity, and stable phase composition. The coatings demonstrate strong interfacial adhesion, high hardness, and excellent thermal-shock resistance, confirming their mechanical and thermal reliability. Furthermore, an engineering verification validated the system’s capability to produce continuous, defect-free coatings in restricted spaces. These results indicate that the proposed internal-diameter TBC process provides an effective solution for aero-engine components with narrow, complex inner surfaces.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: High-Temperature Coating Behaviors · Intermetallics and Advanced Alloy Properties · Subcritical and Supercritical Water Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (44)
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