Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silicon carbide-based composite ceramic coating and slurry sintering preparation method and application thereof
The invention provides a silicon carbide-based composite ceramic coating and a slurry sintering preparation method and application thereof. The silicon carbide-based composite ceramic coating comprises a mullite bottom layer arranged on the surface of silicon carbide and a high-entropy rare earth silicate composite surface layer located on the mullite bottom layer. The high-entropy rare earth silicate composite surface layer comprises a main phase and a second phase, the main phase is high-entropy rare earth monosilicate, and the second phase is high-entropy rare earth disilicate; the mullite bottom layer comprises a mullite phase and amorphous silicon dioxide. The silicon carbide-based composite ceramic coating is obtained through a slurry sintering method, the preparation method of the coating has the advantages of being simple and easy to implement, low in one-time investment cost of equipment and suitable for large-scale production, and a combustor with the coating has excellent high-temperature water oxygen corrosion resistance at the temperature of 1,300 DEG C or above.
本发明提供一种碳化硅基复合陶瓷涂层及其浆料烧结制备方法和应用，所述碳化硅基复合陶瓷涂层包括设置在碳化硅表面的莫来石底层，以及位于所述莫来石底层上的高熵稀土硅酸盐复合面层；所述高熵稀土硅酸盐复合面层包括主相和第二相，所述主相为高熵稀土单硅酸盐，所述第二相为高熵稀土双硅酸盐；所述莫来石底层包括莫来石相和非晶态二氧化硅。本发明通过料浆烧结法获得了该碳化硅基复合陶瓷涂层，该涂层制备方法具有简单易行、设备一次性投入成本低且适合规模化生产的优点，而且具有该涂层的燃烧器在1300℃以上具有优异的耐高温水氧腐蚀性能。
Silicon carbide-based composite ceramic coating and slurry sintering preparation method and application thereof
The invention provides a silicon carbide-based composite ceramic coating and a slurry sintering preparation method and application thereof. The silicon carbide-based composite ceramic coating comprises a mullite bottom layer arranged on the surface of silicon carbide and a high-entropy rare earth silicate composite surface layer located on the mullite bottom layer. The high-entropy rare earth silicate composite surface layer comprises a main phase and a second phase, the main phase is high-entropy rare earth monosilicate, and the second phase is high-entropy rare earth disilicate; the mullite bottom layer comprises a mullite phase and amorphous silicon dioxide. The silicon carbide-based composite ceramic coating is obtained through a slurry sintering method, the preparation method of the coating has the advantages of being simple and easy to implement, low in one-time investment cost of equipment and suitable for large-scale production, and a combustor with the coating has excellent high-temperature water oxygen corrosion resistance at the temperature of 1,300 DEG C or above.
本发明提供一种碳化硅基复合陶瓷涂层及其浆料烧结制备方法和应用，所述碳化硅基复合陶瓷涂层包括设置在碳化硅表面的莫来石底层，以及位于所述莫来石底层上的高熵稀土硅酸盐复合面层；所述高熵稀土硅酸盐复合面层包括主相和第二相，所述主相为高熵稀土单硅酸盐，所述第二相为高熵稀土双硅酸盐；所述莫来石底层包括莫来石相和非晶态二氧化硅。本发明通过料浆烧结法获得了该碳化硅基复合陶瓷涂层，该涂层制备方法具有简单易行、设备一次性投入成本低且适合规模化生产的优点，而且具有该涂层的燃烧器在1300℃以上具有优异的耐高温水氧腐蚀性能。
Silicon carbide-based composite ceramic coating and slurry sintering preparation method and application thereof
一种碳化硅基复合陶瓷涂层及其浆料烧结制备方法和应用
YANG LINGXU (Autor:in) / REN ZHIHENG (Autor:in) / YANG QUANZHAN (Autor:in) / QIAN ZHIQIANG (Autor:in) / WANG XIAOYAN (Autor:in) / FU CHAO (Autor:in)
15.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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