现代技术陶瓷2026，Vol.47Issue(3)：272-279,8.DOI:10.16253/j.cnki.37-1226/tq.2026.03.004
双陶瓷热障涂层的表面改性与性能研究
Surface Modification and Performance Study of Dual Ceramic Thermal Barrier Coatings
岳纺宇 1宁浩楠 1刘莹 1郭亚楠 1王岭1
作者信息
- 1. 营口理工学院材料科学与工程学院,辽宁 营口 115000
- 折叠
摘要
Abstract
The proposed aluminum-plated LaMA dual ceramic thermal barrier coating life extension strategy significantly enhances the coating's high-temperature oxidation resistance through aluminum deposition on the LaMA coating surface.The coating was fabricated using a composite technique of plasma spraying and arc ion plating.Detailed characterization of the coating's phase composition,surface morphology,and cross-sectional structure was performed via X-ray diffraction(XRD),scanning electron microscopy(SEM),and energy-dispersive X-ray spectroscopy(EDS).Findings revealed that the aluminum plating treatment significantly reduced microcracks and pores on the coating surface,improved coating density,and enhanced oxidation resistance.In oxidation kinetics testing,the weight gain rate of the aluminum-coated LaMA coating was 4.84±0.23 mg/cm2,significantly lower than the 8.39±0.12 mg/cm2 of the uncoated sample,indicating that the aluminum layer effectively reduced weight gain under high-temperature oxidation.Further analysis of TGO layer evolution revealed that the aluminum-coated layer effectively retards rapid TGO thickening and mitigates interfacial stress accumulation during oxidation.This demonstrates the significant advantage of aluminum coating in enhancing high-temperature oxidation resistance.These findings provide an effective technical solution for ensuring the long-term reliability of dual-ceramic thermal barrier coatings in high-temperature environments.关键词
镀铝/LaMA涂层/高温氧化/双陶瓷热障涂层Key words
Aluminum coating/LaMA coating/High-temperature oxidation/Dual-ceramic thermal barrier coating分类
化学化工引用本文复制引用
岳纺宇,宁浩楠,刘莹,郭亚楠,王岭..双陶瓷热障涂层的表面改性与性能研究[J].现代技术陶瓷,2026,47(3):272-279,8.
