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A platform for research: civil engineering, architecture and urbanism
Silicon carbide ceramic sealing material and preparation method thereof
The invention provides a silicon carbide ceramic sealing material and a preparation method thereof. The silicon carbide ceramic sealing material comprises a silicon carbide phase and a graphite phase, the silicon carbide ceramic sealing material has a bimodal distribution microstructure. The preparation method of the silicon carbide ceramic sealing material comprises the following steps: (1) mixing a carbon source, silicon carbide powder, a boron source and a solvent to obtain mixed slurry; (2) performing spray granulation and drying on the mixed slurry to obtain granulated powder; (3) carrying out compression molding on the granulated powder to obtain a sealing material biscuit with a required shape; and (4) carrying out two-step sintering on the obtained sealing material biscuit to obtain the silicon carbide ceramic sealing material.
本发明提供一种碳化硅陶瓷密封材料及其制备方法。所述碳化硅陶瓷密封材料包含碳化硅相和石墨相；所述碳化硅陶瓷密封材料具有双峰分布微观结构。所述碳化硅陶瓷密封材料的制备方法包括：(1)将碳源、碳化硅粉体、硼源和溶剂混合，得到混合浆料；(2)将混合浆料经过喷雾造粒干燥，得到造粒粉体；(3)将造粒粉体压制成型，得到所需形状的密封材料素坯；(4)将所得密封材料素坯经过两步烧结，得到所述碳化硅陶瓷密封材料。
Silicon carbide ceramic sealing material and preparation method thereof
The invention provides a silicon carbide ceramic sealing material and a preparation method thereof. The silicon carbide ceramic sealing material comprises a silicon carbide phase and a graphite phase, the silicon carbide ceramic sealing material has a bimodal distribution microstructure. The preparation method of the silicon carbide ceramic sealing material comprises the following steps: (1) mixing a carbon source, silicon carbide powder, a boron source and a solvent to obtain mixed slurry; (2) performing spray granulation and drying on the mixed slurry to obtain granulated powder; (3) carrying out compression molding on the granulated powder to obtain a sealing material biscuit with a required shape; and (4) carrying out two-step sintering on the obtained sealing material biscuit to obtain the silicon carbide ceramic sealing material.
本发明提供一种碳化硅陶瓷密封材料及其制备方法。所述碳化硅陶瓷密封材料包含碳化硅相和石墨相；所述碳化硅陶瓷密封材料具有双峰分布微观结构。所述碳化硅陶瓷密封材料的制备方法包括：(1)将碳源、碳化硅粉体、硼源和溶剂混合，得到混合浆料；(2)将混合浆料经过喷雾造粒干燥，得到造粒粉体；(3)将造粒粉体压制成型，得到所需形状的密封材料素坯；(4)将所得密封材料素坯经过两步烧结，得到所述碳化硅陶瓷密封材料。
Silicon carbide ceramic sealing material and preparation method thereof
一种碳化硅陶瓷密封材料及其制备方法
YAO XIUMIN (author) / JIANG JINDI (author) / LIU XUEJIAN (author) / CHEN ZHONGMING (author) / HUANG ZHENGREN (author)
2024-05-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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