| 白博添,章德铭,冀晓鹃,彭浩然,颜正.环境障涂层选材研究进展[J].热喷涂技术,2022,14(3):1~12. |
| 环境障涂层选材研究进展 |
| Research Progress on the Selection ofMaterials for Environmental Barrier Coating |
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| DOI：DOI 10.3969/j.issn.1674-7127.2022.03-001 |
| 中文关键词: 陶瓷基复合材料 环境障涂层 熔盐腐蚀 水氧腐蚀 |
| 英文关键词:Ceramic Matrix Composites Environmental Barrier Coatings Molten salt corrosion Water vapor corrosion |
| 基金项目: |
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| 摘要点击次数: 169 |
| 全文下载次数: 268 |
| 中文摘要: |
| 随着航空发动机向着高效率、 高推重比方向发展， 传统镍基高温合金已经接近其服役温度极限， 新型材
料体系的引入刻不容缓。 陶瓷基复合材料 (Ceramic matrix composites, CMCs) 以其重量轻、 强度高、 高温性质稳
定等特性成为下一代航空发动机热端的理想备选材料。 但在恶劣的服役环境下陶瓷基复合材料面临 CMAS(CaOMgO-Al2O3-SiO2, CMAS) 熔盐冲刷作用和高温水氧腐蚀的威胁， 需要在其表面制备环境障涂层 (Environmental
Barrier Coating, EBC) 来提高其抗腐蚀能力。 以硅酸盐为面层的第三代 EBC 体系是目前研究的热点。 本文在总结
EBC 涂层设计要求、 简要介绍前两代 EBC 发展历程的基础上详细介绍第三代 EBC 体系的发展现状， 并结合现有
研究报道展望未来 EBC 的发展方向， 为先进航空发动机的选材提供借鉴。 |
| 英文摘要: |
| With the development of aero-engines towards high efficiency and high thrust-to-weight ratio,
the traditional nickel-based high-temperature alloys are approaching their service temperature limit, and the
introduction of new material systems is a matter of urgency. Ceramic matrix composites (CMCs), with their
lightweight, high strength, and high-temperature stability, have become the ideal material for the hot end of nextgeneration aero engines. However, in the harsh service environment, ceramic matrix composites face the threat of
CMAS molten salt scouring effect and high-temperature hydroxide corrosion and need to prepare Environmental
Barrier Coating (EBC) on their surface to improve their corrosion resistance. The third-generation EBC system
with silicate as the surface layer is a hot topic of research at present. This paper summarizes the EBC coating
design requirements and briefly introduces the development history of the first two generations of EBC based on
a detailed introduction of the development status of the third-generation EBC system, and looks forward to the
future development direction of EBC in conjunction with existing research reports to provide a reference for theselection of materials for advanced aero engines. |
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