Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-entropy rare earth silicate ceramic powder and block and ceramic powder
The invention belongs to the technical field of high-performance ceramics, and discloses a high-entropy rare earth silicate ceramic powder and block preparation method and ceramic powder.The preparation method comprises the steps that Re2O3 powder and silicon dioxide powder are mixed, and mixed powder is obtained; mixing the mixed powder with an ethanol solution to obtain mixed slurry; mixing for 12-24 hours by using a ball mill, drying, and sieving by using a 100-mesh sieve to obtain powder 1; carrying out heat treatment on the powder 1 in an air atmosphere, adding absolute ethyl alcohol, grinding for 4-8 hours, drying, and sieving with a 200-mesh sieve to obtain powder 2; and filling the powder 2 into a graphite mold, carrying out pre-room-temperature cold press molding by adopting a powder tablet press, and carrying out hot pressed sintering in a hot pressing furnace filled with a protective atmosphere to obtain the high-entropy rare earth silicate ceramic powder and block with high-temperature water vapor corrosion resistance. The high-entropy rare earth silicate material prepared by the method is high in purity, simple to operate and low in cost; the high-entropy rare earth silicate of the system has excellent water and oxygen corrosion resistance.
本发明属于高性能陶瓷技术领域，公开了一种高熵稀土硅酸盐陶瓷粉体和块体制备方法及陶瓷粉体，将Re2O3粉体和二氧化硅粉体混合，得到混合粉体；将混合粉体和乙醇溶液混合，得到混合浆液；利用球磨机混合12‑24h，进行烘干，过100目筛，得到粉体1；粉体1在空气气氛下进行热处理，加入无水乙醇，研磨4‑8h，烘干过200筛，得到粉体2；将粉体2装入石墨模具，采用粉末压片机进行预室温冷压成型，在通有保护气氛的热压炉内进行热压烧结，得到耐高温水气腐蚀性能的高熵稀土硅酸盐陶瓷粉体和块体。本发明制备的高熵稀土硅酸盐材料纯度高，操作简单，成本低廉；这种体系的高熵稀土硅酸盐具有优异的抗水氧腐蚀性能。
Preparation method of high-entropy rare earth silicate ceramic powder and block and ceramic powder
The invention belongs to the technical field of high-performance ceramics, and discloses a high-entropy rare earth silicate ceramic powder and block preparation method and ceramic powder.The preparation method comprises the steps that Re2O3 powder and silicon dioxide powder are mixed, and mixed powder is obtained; mixing the mixed powder with an ethanol solution to obtain mixed slurry; mixing for 12-24 hours by using a ball mill, drying, and sieving by using a 100-mesh sieve to obtain powder 1; carrying out heat treatment on the powder 1 in an air atmosphere, adding absolute ethyl alcohol, grinding for 4-8 hours, drying, and sieving with a 200-mesh sieve to obtain powder 2; and filling the powder 2 into a graphite mold, carrying out pre-room-temperature cold press molding by adopting a powder tablet press, and carrying out hot pressed sintering in a hot pressing furnace filled with a protective atmosphere to obtain the high-entropy rare earth silicate ceramic powder and block with high-temperature water vapor corrosion resistance. The high-entropy rare earth silicate material prepared by the method is high in purity, simple to operate and low in cost; the high-entropy rare earth silicate of the system has excellent water and oxygen corrosion resistance.
本发明属于高性能陶瓷技术领域，公开了一种高熵稀土硅酸盐陶瓷粉体和块体制备方法及陶瓷粉体，将Re2O3粉体和二氧化硅粉体混合，得到混合粉体；将混合粉体和乙醇溶液混合，得到混合浆液；利用球磨机混合12‑24h，进行烘干，过100目筛，得到粉体1；粉体1在空气气氛下进行热处理，加入无水乙醇，研磨4‑8h，烘干过200筛，得到粉体2；将粉体2装入石墨模具，采用粉末压片机进行预室温冷压成型，在通有保护气氛的热压炉内进行热压烧结，得到耐高温水气腐蚀性能的高熵稀土硅酸盐陶瓷粉体和块体。本发明制备的高熵稀土硅酸盐材料纯度高，操作简单，成本低廉；这种体系的高熵稀土硅酸盐具有优异的抗水氧腐蚀性能。
Preparation method of high-entropy rare earth silicate ceramic powder and block and ceramic powder
高熵稀土硅酸盐陶瓷粉体和块体制备方法及陶瓷粉体
ZHANG TAO (Autor:in) / DING KUNYING (Autor:in) / JIA ZHIHAO (Autor:in) / ZHANG SHIHUA (Autor:in)
15.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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