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Preparation method of high-porosity porous alumina ceramic
The invention discloses a preparation method of high-porosity porous alumina ceramic, relates to a preparation method of porous alumina ceramic and aims to solve the problem of low porosity of the porous alumina ceramic prepared with an existing method. The method comprises steps as follows: 1), preparation of slurry of alumina ceramic; 2), preparation of a porous alumina ceramic body with a freezing injection molding method; 3), drying and sintering. Accordingly, the high-porosity porous alumina ceramic is obtained. On the premise that an inside three-dimensional net structure is not changed, the porosity of the porous ceramic is increased. The prepared porous alumina ceramic not only has higher pore-forming porosity, lower volume density, higher filtration and adsorption performance and higher mechanical strength, and the mechanical performance is remarkably improved. The preparation method is used for the field of porous ceramic materials.
Preparation method of high-porosity porous alumina ceramic
The invention discloses a preparation method of high-porosity porous alumina ceramic, relates to a preparation method of porous alumina ceramic and aims to solve the problem of low porosity of the porous alumina ceramic prepared with an existing method. The method comprises steps as follows: 1), preparation of slurry of alumina ceramic; 2), preparation of a porous alumina ceramic body with a freezing injection molding method; 3), drying and sintering. Accordingly, the high-porosity porous alumina ceramic is obtained. On the premise that an inside three-dimensional net structure is not changed, the porosity of the porous ceramic is increased. The prepared porous alumina ceramic not only has higher pore-forming porosity, lower volume density, higher filtration and adsorption performance and higher mechanical strength, and the mechanical performance is remarkably improved. The preparation method is used for the field of porous ceramic materials.
Preparation method of high-porosity porous alumina ceramic
LYU GANG (author) / ZHOU GUOTAI (author)
2016-01-27
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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