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A platform for research: civil engineering, architecture and urbanism
Rapidly-dried SiC honeycomb ceramic skin, SiC honeycomb ceramic with skin and preparation method of honeycomb ceramic
The invention discloses a rapidly-dried SiC honeycomb ceramic sheath, SiC honeycomb ceramic with the sheath and a preparation method of the honeycomb ceramic, the sheath comprises the following raw materials in parts by weight: 50-90 parts of silicon carbide powder, the silicon carbide powder comprises 45-55 parts of coarse-grained silicon carbide, 15-23 parts of medium-grained silicon carbide, 10-17 parts of fine-grained silicon carbide and 5-15 parts of metal silicon powder, and the average particle size of the silicon carbide powder is 3-7 [mu] m; the outer skin further comprises ceramic fibers accounting for 3-10% of the sum of the weight of the silicon carbide powder and the weight of the metal silicon powder, cellulose accounting for 0.5-1.5% of the sum of the weight of the silicon carbide powder and the weight of the metal silicon powder, silica sol accounting for 20-40% of the sum of the weight of the silicon carbide powder and the weight of the metal silicon powder, an antifoaming agent accounting for 0.3-1.0% of the sum of the weight of the metal silicon powder and the sum of the weight of the silicon carbide powder and the weight of the metal silicon powder. The preparation method has the beneficial effects that the dispersity and compactness of the pug are greatly improved, the pug can be quickly dried at 40-70 DEG C after being coated with an outer skin, the drying time is less than 4 hours, and the skin cannot be opened.
本发明公开了一种快速干燥的SiC蜂窝陶瓷外皮、具备该外皮的SiC蜂窝陶瓷及该蜂窝陶瓷的制备方法，所述外皮的原料按照重量份数包括50～90份碳化硅粉料、其中粗粒度碳化硅占45～55份，中粒度碳化硅占15～23份，细粒度碳化硅占10～17份，5～15份金属硅粉，平均粒度为3～7μm；所述外皮还包括占碳化硅粉料和金属硅粉重量之和3～10％的陶瓷纤维，0.5～1.5％的纤维素，20～40％的硅溶胶，0.3～1.0％的消泡剂，0.3～1.0％的表面活性剂月桂酸钾，以及15～25％的水，通过添加少量的表面活性剂，消泡剂，并在抽真空转态下使用练泥机对涂层料进行湿混，以大幅提高泥料的分散性、致密性，使涂覆外皮后能在40～70℃下快速干燥，干燥时间＜4h，而不产生皮开。
Rapidly-dried SiC honeycomb ceramic skin, SiC honeycomb ceramic with skin and preparation method of honeycomb ceramic
The invention discloses a rapidly-dried SiC honeycomb ceramic sheath, SiC honeycomb ceramic with the sheath and a preparation method of the honeycomb ceramic, the sheath comprises the following raw materials in parts by weight: 50-90 parts of silicon carbide powder, the silicon carbide powder comprises 45-55 parts of coarse-grained silicon carbide, 15-23 parts of medium-grained silicon carbide, 10-17 parts of fine-grained silicon carbide and 5-15 parts of metal silicon powder, and the average particle size of the silicon carbide powder is 3-7 [mu] m; the outer skin further comprises ceramic fibers accounting for 3-10% of the sum of the weight of the silicon carbide powder and the weight of the metal silicon powder, cellulose accounting for 0.5-1.5% of the sum of the weight of the silicon carbide powder and the weight of the metal silicon powder, silica sol accounting for 20-40% of the sum of the weight of the silicon carbide powder and the weight of the metal silicon powder, an antifoaming agent accounting for 0.3-1.0% of the sum of the weight of the metal silicon powder and the sum of the weight of the silicon carbide powder and the weight of the metal silicon powder. The preparation method has the beneficial effects that the dispersity and compactness of the pug are greatly improved, the pug can be quickly dried at 40-70 DEG C after being coated with an outer skin, the drying time is less than 4 hours, and the skin cannot be opened.
本发明公开了一种快速干燥的SiC蜂窝陶瓷外皮、具备该外皮的SiC蜂窝陶瓷及该蜂窝陶瓷的制备方法，所述外皮的原料按照重量份数包括50～90份碳化硅粉料、其中粗粒度碳化硅占45～55份，中粒度碳化硅占15～23份，细粒度碳化硅占10～17份，5～15份金属硅粉，平均粒度为3～7μm；所述外皮还包括占碳化硅粉料和金属硅粉重量之和3～10％的陶瓷纤维，0.5～1.5％的纤维素，20～40％的硅溶胶，0.3～1.0％的消泡剂，0.3～1.0％的表面活性剂月桂酸钾，以及15～25％的水，通过添加少量的表面活性剂，消泡剂，并在抽真空转态下使用练泥机对涂层料进行湿混，以大幅提高泥料的分散性、致密性，使涂覆外皮后能在40～70℃下快速干燥，干燥时间＜4h，而不产生皮开。
Rapidly-dried SiC honeycomb ceramic skin, SiC honeycomb ceramic with skin and preparation method of honeycomb ceramic
一种快速干燥的SiC蜂窝陶瓷外皮、具备该外皮的SiC蜂窝陶瓷及该蜂窝陶瓷的制备方法
HU ZHIMEI (author) / CHEN YIQI (author) / SUN XIENONG (author)
2024-12-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME