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High-entropy disilicate nanoparticle/amorphous silicon dioxide and silicon carbide nanowire composite aerogel as well as preparation method and application thereof
The invention discloses a high-entropy disilicate nanoparticle/amorphous silicon dioxide (at) silicon carbide nanowire composite aerogel as well as a preparation method and application thereof. The expression of the composite aerogel is (Y < 0.2 > Yb < 0.2 > Er < 0.2 > Tm < 0.2 > Gd < 0.2 >) 2Si2O7NP/amorphous SiO2 (at) SiC NWA. The method has the advantages of simplicity, feasibility, economy, no pollution, large-scale production and the like. The high-entropy disilicate nano-particle/amorphous silicon dioxide and silicon carbide nano-wire composite aerogel has excellent mechanical property and heat-insulating property, has excellent high-temperature stability, and can be subjected to heat treatment for 5 hours in an air atmosphere of 1200 DEG C without phase change or segregation. The composite aerogel is suitable for being used in the fields of high-temperature heat insulation, efficient heat protection and the like. The series of high-entropy oxides fill the research blank of high-entropy ceramic composite aerogel and expand the application range of high-entropy ceramics.
本发明公开了一种高熵二硅酸盐纳米颗粒/非晶二氧化硅@碳化硅纳米线复合气凝胶及其制备方法和应用，该复合气凝胶的表达式为(Y0.2Yb0.2Er0.2Tm0.2Gd0.2)2Si2O7NP/非晶SiO2@SiC NWA。该方法具有简单易行，经济且无污染，可大规模生产等优点。该高熵二硅酸盐纳米颗粒/非晶二氧化硅@碳化硅纳米线复合气凝胶具有优异的力学性能、隔热性能，并有极好的高温稳定性，能够在1200℃空气气氛下热处理5h不发生相变或偏析。该复合气凝胶适合用作高温隔热和高效热防护等领域。该系列高熵氧化物填补了高熵陶瓷复合气凝胶的研究空白，拓展高熵陶瓷的应用范围。
High-entropy disilicate nanoparticle/amorphous silicon dioxide and silicon carbide nanowire composite aerogel as well as preparation method and application thereof
The invention discloses a high-entropy disilicate nanoparticle/amorphous silicon dioxide (at) silicon carbide nanowire composite aerogel as well as a preparation method and application thereof. The expression of the composite aerogel is (Y < 0.2 > Yb < 0.2 > Er < 0.2 > Tm < 0.2 > Gd < 0.2 >) 2Si2O7NP/amorphous SiO2 (at) SiC NWA. The method has the advantages of simplicity, feasibility, economy, no pollution, large-scale production and the like. The high-entropy disilicate nano-particle/amorphous silicon dioxide and silicon carbide nano-wire composite aerogel has excellent mechanical property and heat-insulating property, has excellent high-temperature stability, and can be subjected to heat treatment for 5 hours in an air atmosphere of 1200 DEG C without phase change or segregation. The composite aerogel is suitable for being used in the fields of high-temperature heat insulation, efficient heat protection and the like. The series of high-entropy oxides fill the research blank of high-entropy ceramic composite aerogel and expand the application range of high-entropy ceramics.
本发明公开了一种高熵二硅酸盐纳米颗粒/非晶二氧化硅@碳化硅纳米线复合气凝胶及其制备方法和应用，该复合气凝胶的表达式为(Y0.2Yb0.2Er0.2Tm0.2Gd0.2)2Si2O7NP/非晶SiO2@SiC NWA。该方法具有简单易行，经济且无污染，可大规模生产等优点。该高熵二硅酸盐纳米颗粒/非晶二氧化硅@碳化硅纳米线复合气凝胶具有优异的力学性能、隔热性能，并有极好的高温稳定性，能够在1200℃空气气氛下热处理5h不发生相变或偏析。该复合气凝胶适合用作高温隔热和高效热防护等领域。该系列高熵氧化物填补了高熵陶瓷复合气凝胶的研究空白，拓展高熵陶瓷的应用范围。
High-entropy disilicate nanoparticle/amorphous silicon dioxide and silicon carbide nanowire composite aerogel as well as preparation method and application thereof
高熵二硅酸盐纳米颗粒/非晶二氧化硅@碳化硅纳米线复合气凝胶及其制备方法和应用
WANG HONGJIE (author) / HE XIN (author) / XU LIANG (author) / LU DE (author)
2023-09-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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