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Ceramic-based sealing coating for surface of silicon carbide fiber reinforced silicon carbide composite material as well as preparation method and application of ceramic-based sealing coating
The invention provides a ceramic-based sealing coating for a silicon carbide fiber reinforced silicon carbide composite material (SiC/SiC) as well as a preparation method and application of the ceramic-based sealing coating, and belongs to the technical field of preparation of high-temperature coating materials. The preparation method comprises the following steps: grinding holes in the SiC/SiC surface; and preparing the ceramic-based sealing coating on the SiC/SiC surface subjected to hole grinding by adopting an atmospheric plasma spraying process. The ceramic-based sealing coating prepared through the method is high in bonding strength, resistant to high temperature, good in thermal stability and high in thermal shock resistance, the long-term use temperature reaches 1200 DEG C, and the ceramic-based sealing coating is suitable for sealing of the SiC/SiC turbine outer ring of the gas turbine.
本发明提供一种用于碳化硅纤维增强的碳化硅复合材料(SiC/SiC)的陶瓷基封严涂层及其制备方法和应用，属于高温涂层材料制备技术领域。制备方法包括以下步骤：将SiC/SiC表面磨孔；采用大气等离子喷涂工艺，在磨孔后的SiC/SiC表面制备陶瓷基封严涂层。该方法制备的陶瓷基封严涂层的结合强度高、耐高温、热稳定性好、抗热冲击能力强，长期使用温度达到1200℃，适合于燃气轮机SiC/SiC涡轮外环的封严。
Ceramic-based sealing coating for surface of silicon carbide fiber reinforced silicon carbide composite material as well as preparation method and application of ceramic-based sealing coating
The invention provides a ceramic-based sealing coating for a silicon carbide fiber reinforced silicon carbide composite material (SiC/SiC) as well as a preparation method and application of the ceramic-based sealing coating, and belongs to the technical field of preparation of high-temperature coating materials. The preparation method comprises the following steps: grinding holes in the SiC/SiC surface; and preparing the ceramic-based sealing coating on the SiC/SiC surface subjected to hole grinding by adopting an atmospheric plasma spraying process. The ceramic-based sealing coating prepared through the method is high in bonding strength, resistant to high temperature, good in thermal stability and high in thermal shock resistance, the long-term use temperature reaches 1200 DEG C, and the ceramic-based sealing coating is suitable for sealing of the SiC/SiC turbine outer ring of the gas turbine.
本发明提供一种用于碳化硅纤维增强的碳化硅复合材料(SiC/SiC)的陶瓷基封严涂层及其制备方法和应用，属于高温涂层材料制备技术领域。制备方法包括以下步骤：将SiC/SiC表面磨孔；采用大气等离子喷涂工艺，在磨孔后的SiC/SiC表面制备陶瓷基封严涂层。该方法制备的陶瓷基封严涂层的结合强度高、耐高温、热稳定性好、抗热冲击能力强，长期使用温度达到1200℃，适合于燃气轮机SiC/SiC涡轮外环的封严。
Ceramic-based sealing coating for surface of silicon carbide fiber reinforced silicon carbide composite material as well as preparation method and application of ceramic-based sealing coating
一种用于碳化硅纤维增强的碳化硅复合材料表面的陶瓷基封严涂层及其制备方法和应用
CAO XUEQIANG (author) / HUANG JINGQI (author) / LIU RUOYU (author) / DENG LONGHUI (author) / JIANG JIANING (author) / WANG YUNCHENG (author) / HU QING (author) / LI GUI (author) / CAO QIN (author) / LIU LI (author)
2022-11-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B24B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
,
Maschinen, Einrichtungen oder Verfahren zum Schleifen oder Polieren
/
B24C
ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
,
Abschleifendes oder ähnliches Abstrahlen mit teilchenförmigem Werkstoff
/
F01D
Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen
,
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
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