一种抗CMAS腐蚀的高熵稀土单硅酸盐陶瓷材料及其筛选方法、制备方法和应用
By screening the dissolution rate of high-entropy rare-earth apatite powder in CMAS melt, the composition and preparation process of rare-earth monosilicate ceramic materials were optimized, solving the problem of insufficient CMAS corrosion resistance of existing materials. This resulted in efficient ceramic material screening and excellent corrosion resistance, making it suitable for aerospace hot-end components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTH CHINA UNIV OF TECH
- Filing Date
- 2025-04-03
- Publication Date
- 2026-07-17
AI Technical Summary
Existing high-entropy rare-earth monosilicate ceramic materials do not have ideal resistance to CMAS corrosion, making it difficult to meet the high thrust-to-weight ratio service requirements of aero-engines. Furthermore, traditional screening methods are time-consuming and labor-intensive, making it difficult to quickly find the optimal composition.
By screening the dissolution rate of high-entropy rare-earth apatite powder in CMAS melt, the types and proportions of rare-earth elements were determined, and high-entropy rare-earth monosilicate ceramic materials resistant to CMAS corrosion were prepared. The composition and properties of the ceramic materials were optimized by using wet ball milling, drying, pressing and sintering processes.
It achieves excellent resistance to CMAS corrosion at 1700℃, shortens development time and costs, and is suitable for large-scale application in the aerospace field.
Smart Images
Figure CN120504537B_ABST