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A platform for research: civil engineering, architecture and urbanism
High-entropy rare earth monosilicate environmental barrier coating as well as preparation method and application thereof
The invention provides a high-entropy rare earth monosilicate environmental barrier coating, the component of the coating is (Lu0. 25RE10. 25RE20. 25RE30. 25) 2SiO5, RE is any three rare earth elements of Y, Gd, Ho, Er, Tm or Yb, and the coating has high-temperature CMAS corrosion resistance. The invention also provides a preparation method of the high-entropy rare earth monosilicate environmental barrier coating. The invention also provides an application of the high-entropy rare earth monosilicate environmental barrier coating on an aero-engine. According to the designed high-entropy rare earth silicate coating, the reaction process of a material under high-temperature CMAS corrosion is adjusted, the reaction degree of the material and CMAS at the high temperature is reduced, and compared with an RE2SiO5 coating with a single rare earth component, the high-entropy rare earth silicate coating has better high-temperature CMAS corrosion resistance. The preparation method of the coating is a plasma spraying method, and has the advantages of being high in deposition speed, low in cost, good in repeatability, large in adjustable range of the spraying thickness of the coating, high in production efficiency, suitable for large-scale production and the like.
本发明提供一种高熵稀土单硅酸盐环境障碍涂层，涂层成分为(Lu0.25RE10.25RE20.25RE30.25)2SiO5，其中RE为Y、Gd、Ho、Er、Tm或Yb中的任意三种稀土元素，所述涂层具有耐高温CMAS腐蚀性。本发明还提供一种如上所述的高熵稀土单硅酸盐环境障碍涂层的制备方法。本发明还提供一种如上所述的高熵稀土单硅酸盐环境障碍涂层在航空发动机上的应用。本发明设计的高熵稀土硅酸盐涂层通调节了材料在高温CMAS腐蚀下的反应过程，减小了材料与高温下CMAS的反应程度，与单一稀土组元的RE2SiO5涂层相比，具有更好的耐高温CMAS腐蚀性能。本发明采用的涂层的制备方法为等离子体喷涂法，具有沉积速度快、成本低、重复性好、涂层喷涂厚度可调范围大、生产效率高、适合规模化生产等等优点。
High-entropy rare earth monosilicate environmental barrier coating as well as preparation method and application thereof
The invention provides a high-entropy rare earth monosilicate environmental barrier coating, the component of the coating is (Lu0. 25RE10. 25RE20. 25RE30. 25) 2SiO5, RE is any three rare earth elements of Y, Gd, Ho, Er, Tm or Yb, and the coating has high-temperature CMAS corrosion resistance. The invention also provides a preparation method of the high-entropy rare earth monosilicate environmental barrier coating. The invention also provides an application of the high-entropy rare earth monosilicate environmental barrier coating on an aero-engine. According to the designed high-entropy rare earth silicate coating, the reaction process of a material under high-temperature CMAS corrosion is adjusted, the reaction degree of the material and CMAS at the high temperature is reduced, and compared with an RE2SiO5 coating with a single rare earth component, the high-entropy rare earth silicate coating has better high-temperature CMAS corrosion resistance. The preparation method of the coating is a plasma spraying method, and has the advantages of being high in deposition speed, low in cost, good in repeatability, large in adjustable range of the spraying thickness of the coating, high in production efficiency, suitable for large-scale production and the like.
本发明提供一种高熵稀土单硅酸盐环境障碍涂层，涂层成分为(Lu0.25RE10.25RE20.25RE30.25)2SiO5，其中RE为Y、Gd、Ho、Er、Tm或Yb中的任意三种稀土元素，所述涂层具有耐高温CMAS腐蚀性。本发明还提供一种如上所述的高熵稀土单硅酸盐环境障碍涂层的制备方法。本发明还提供一种如上所述的高熵稀土单硅酸盐环境障碍涂层在航空发动机上的应用。本发明设计的高熵稀土硅酸盐涂层通调节了材料在高温CMAS腐蚀下的反应过程，减小了材料与高温下CMAS的反应程度，与单一稀土组元的RE2SiO5涂层相比，具有更好的耐高温CMAS腐蚀性能。本发明采用的涂层的制备方法为等离子体喷涂法，具有沉积速度快、成本低、重复性好、涂层喷涂厚度可调范围大、生产效率高、适合规模化生产等等优点。
High-entropy rare earth monosilicate environmental barrier coating as well as preparation method and application thereof
一种高熵稀土单硅酸盐环境障碍涂层及其制备方法和应用
ZHONG XIN (author) / FAN DONG (author) / NIU YARAN (author) / ZHANG ZHENZHONG (author) / LIU PINGPING (author) / HONG DU (author) / HUANG LIPING (author) / ZHENG XUEBIN (author)
2024-02-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
| European Patent Office | 2021