A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-entropy rare earth disilicate material as well as preparation method and application thereof
The invention provides a high-entropy rare earth disilicate material as well as a preparation method and application thereof, and relates to the technical field of environmental barrier coating materials. The molecular formula of the high-entropy rare earth disilicate material provided by the invention is (xRE1/X) 2Si2O7, rE comprises more than four of Lu, Yb, Sc, Er, Y, Ho, Dy and Tb; x ranges from 4 to 8. The high-entropy rare earth disilicate material provided by the invention is free of miscellaneous items, good in high-temperature chemical stability and strong in CMAS corrosion resistance. The high-entropy rare earth disilicate material disclosed by the invention has a relatively low thermal conductivity coefficient, is high in CMAS corrosion resistance at 1300 DEG C, and meets the use requirement of serving as an environmental barrier coating.
本发明提供了一种高熵稀土二硅酸盐材料及其制备方法和应用，涉及环境障涂层材料技术领域。本发明提供的高熵稀土二硅酸盐材料的分子式为(xRE1/X)2Si2O7；RE包括Lu、Yb、Sc、Er、Y、Ho、Dy和Tb中的4种以上；x的范围为4～8。本发明提供的高熵稀土二硅酸盐材料无杂项，高温化学稳定性好，耐CMAS腐蚀能力强。本发明所述高熵稀土二硅酸盐材料具有较低的热导率系数，在1300℃耐CMAS腐蚀能力强，满足作为环境障涂层的使用需求。
High-entropy rare earth disilicate material as well as preparation method and application thereof
The invention provides a high-entropy rare earth disilicate material as well as a preparation method and application thereof, and relates to the technical field of environmental barrier coating materials. The molecular formula of the high-entropy rare earth disilicate material provided by the invention is (xRE1/X) 2Si2O7, rE comprises more than four of Lu, Yb, Sc, Er, Y, Ho, Dy and Tb; x ranges from 4 to 8. The high-entropy rare earth disilicate material provided by the invention is free of miscellaneous items, good in high-temperature chemical stability and strong in CMAS corrosion resistance. The high-entropy rare earth disilicate material disclosed by the invention has a relatively low thermal conductivity coefficient, is high in CMAS corrosion resistance at 1300 DEG C, and meets the use requirement of serving as an environmental barrier coating.
本发明提供了一种高熵稀土二硅酸盐材料及其制备方法和应用，涉及环境障涂层材料技术领域。本发明提供的高熵稀土二硅酸盐材料的分子式为(xRE1/X)2Si2O7；RE包括Lu、Yb、Sc、Er、Y、Ho、Dy和Tb中的4种以上；x的范围为4～8。本发明提供的高熵稀土二硅酸盐材料无杂项，高温化学稳定性好，耐CMAS腐蚀能力强。本发明所述高熵稀土二硅酸盐材料具有较低的热导率系数，在1300℃耐CMAS腐蚀能力强，满足作为环境障涂层的使用需求。
High-entropy rare earth disilicate material as well as preparation method and application thereof
一种高熵稀土二硅酸盐材料及其制备方法和应用
2024-03-19
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
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| European Patent Office | 2022
| European Patent Office | 2024
| European Patent Office | 2022