文章信息/Info

Title:

Research Progress on Water Vapor Corrosion of Rare-Earth Silicates Environmental Barrier Coatings

文章編號:

1674-3962(2025)02-0134-12

作者:

鐘鑫; 牛亞然; 鄭學斌; 丁傳賢

中國科學院上海硅酸鹽研究所，上海 200050

Author(s):

ZHONG Xin;  NIU Yaran;  ZHENG Xuebin;  DING Chuanxian

Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

關鍵詞:

環境障涂層; 稀土硅酸鹽; 耐水氧腐蝕; 腐蝕機理

Keywords:

environmental barrier coatings;  rare-earth silicates;  water vapor corrosion resistance;  corrosion mechanism

分類號:

TG174.4;V263

DOI:

10.7502/j.issn.1674-3962.202409003

文獻標志碼:

A

摘要:

陶瓷基復合材料（ceramic matrix composites，CMCs）具有密度低、耐高溫、抗氧化、力學性能優異等特點，可部分取代傳統高溫合金應用于新一代航空發動機的熱端部件。但CMCs在服役過程中面臨嚴苛的水氧腐蝕，這嚴重影響其性能穩定性。環境障涂層（environmental barrier coatings，EBCs）是應用于航空發動機熱端部件的重要材料，可將腐蝕性介質與CMCs隔離開來，從而對基體進行有效保護。簡要介紹了EBCs應用背景、選材要求、發展歷程和制備工藝，重點敘述了稀土硅酸鹽EBCs水氧腐蝕行為和機理的研究進展，并闡述了其服役過程中的失效原因。針對目前EBCs研究存在的問題提出了改進建議。期望本綜述對高性能EBCs的開發提供一些參考。

Abstract:

Ceramic matrix composites (CMCs) have the characteristics of low density, high temperature resistance, oxidation resistance and excellent mechanical performance, which can partially replace superalloys and be used as hot-end components for aircraft engines. However, CMCs are confronted with corrosion from media such as water vapor during long-term service, which seriously affects their performance and stability. Environmental barrier coatings (EBCs) are important materials used in the hot-end components of aircraft engines, which can isolate corrosive media from CMCs and protect the substrate. The application background, materials selection requirements, development history, and preparation process of EBCs were briefly introduced, and the research progress of the water vapor corrosion behaviors and mechanisms of rare�瞖arth silicates EBCs were focused on. The failure reasons of rare-earth silicates EBCs during service were also elaborated. In response to the current problems of EBCs, improvement advices have been proposed, which have reference significance for the development of high-performance EBCs.