Abstract
This study introduces a novel approach for modifying CVI-SiC/SiC composites and constructing EBCs devoid of silicon bonding layers. The introduction of Y-Al-Si-O(YAS) system microcrystalline glass as a matrix modifier significantly reduces the preparation time for SiC/SiC composites, concurrently improving the corrosion resistance of the matrix. Subsequent preparation of monolayer YAS EBCs on a modified substrate provides excellent high-temperature corrosion resistance. Following 100 hours of water-oxygen corrosion at 1350°C, SiO2 thermal growth oxide(TGO), approximately 1 μm thick, was observed within the composites. Moreover, the mechanical properties of the coated composites remain virtually unaltered after 100 hours of corrosion.
Original language | English |
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Article number | 116728 |
Journal | Journal of the European Ceramic Society |
Volume | 44 |
Issue number | 15 |
DOIs | |
State | Published - Dec 2024 |
Keywords
- Matrix modification
- SiC/SiC composites
- Water-oxygen corrosion
- Y-Al-Si-O EBCs