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High-temperature-resistant environmental barrier coating bonding layer and preparation method thereof
The invention provides a high-temperature-resistant environment barrier coating bonding layer and a preparation method thereof. The layer material of the high-temperature-resistant environment barrier coating bonding layer is mixed powder of HfSi2 particles and Si particles; the bonding layer of the high-temperature-resistant environmental barrier coating is obtained by HfSi2 and Si mixed particles in the form of thermal spraying powder through an atmospheric plasma spraying method, the bonding layer is used for being arranged between the surface layer of the environmental barrier coating and the ceramic-based composite material, and the thickness of the bonding layer is about 30-80 microns. The preparation method comprises the steps of preparation of thermal spraying powder and atmospheric plasma spraying. Comprising a SiCf/SiC composite material matrix/HfSi2-Si bonding layer/Yb2Si2O7 surface layer of the bonding layer can be kept for 100 hours in a 1350 DEG C water-oxygen coupling environment, and the coating does not fall off obviously.
本发明提供了一种耐高温环境障涂层粘结层及其制备方法，耐高温环境障涂层粘结层的层材料为HfSi2颗粒和Si颗粒混合粉体；耐高温环境障涂层粘结层是HfSi2和Si混合颗粒以热喷涂粉体形式经大气等离子喷涂方法获得，该粘结层用于设置在环境障涂层面层与陶瓷基复合材料之间，厚度约为30～80μm。制备方法包括热喷涂粉体的制备和大气等离子喷涂。包括该粘结层的SiCf/SiC复合材料基体/HfSi2‑Si粘结层/Yb2Si2O7面层的环境障涂层可在1350℃水氧耦合环境中保持100小时，涂层无明显脱落。
High-temperature-resistant environmental barrier coating bonding layer and preparation method thereof
The invention provides a high-temperature-resistant environment barrier coating bonding layer and a preparation method thereof. The layer material of the high-temperature-resistant environment barrier coating bonding layer is mixed powder of HfSi2 particles and Si particles; the bonding layer of the high-temperature-resistant environmental barrier coating is obtained by HfSi2 and Si mixed particles in the form of thermal spraying powder through an atmospheric plasma spraying method, the bonding layer is used for being arranged between the surface layer of the environmental barrier coating and the ceramic-based composite material, and the thickness of the bonding layer is about 30-80 microns. The preparation method comprises the steps of preparation of thermal spraying powder and atmospheric plasma spraying. Comprising a SiCf/SiC composite material matrix/HfSi2-Si bonding layer/Yb2Si2O7 surface layer of the bonding layer can be kept for 100 hours in a 1350 DEG C water-oxygen coupling environment, and the coating does not fall off obviously.
本发明提供了一种耐高温环境障涂层粘结层及其制备方法，耐高温环境障涂层粘结层的层材料为HfSi2颗粒和Si颗粒混合粉体；耐高温环境障涂层粘结层是HfSi2和Si混合颗粒以热喷涂粉体形式经大气等离子喷涂方法获得，该粘结层用于设置在环境障涂层面层与陶瓷基复合材料之间，厚度约为30～80μm。制备方法包括热喷涂粉体的制备和大气等离子喷涂。包括该粘结层的SiCf/SiC复合材料基体/HfSi2‑Si粘结层/Yb2Si2O7面层的环境障涂层可在1350℃水氧耦合环境中保持100小时，涂层无明显脱落。
High-temperature-resistant environmental barrier coating bonding layer and preparation method thereof
一种耐高温环境障涂层粘结层及其制备方法
WANG YANFEI (author) / ZHANG YUE (author) / WAN FAN (author) / LI JUNSHENG (author) / LI DUAN (author) / LIU RONGJUN (author)
2024-09-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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