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| Preparation of High-Entropy Ceramics and Their Application Status in Thermal/Environmental Barrier Coatings |
| WEI Fushuang, LIU Yong, ZHANG Xiaodong, ZHANG Dongxing, WANG You |
| Harbin Institute of Technology, Harbin 150001, China |
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Abstract The research of high-entropy ceramics is still immature compared with high-entropy alloys, but a variety of high-entropy ceramics have been explored and prepared. High-entropy ceramic materials have unique structure and excellent properties, of which application prospect is very broad. Among them, the excellent phase stability, good matching with the thermal expansion coefficient of silicon-based ceramics, and excellent resistance to water vapor corrosion makes them very suitable for thermal barrier coatings, environmental barrier coatings and thermal/environmental barrier coatings. It has become a research hotspot of thermal protection coating in recent years. Based on the research on high-entropy ceramics in recent years, this article summarizes the current computer simulation methods, preparation processes and sintering processes used in the research of high-entropy ceramic materials, the application status and shortcomings of high entropy ceramic materials in thermal/environment barrier coatings are pointed out.
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2021, 
