Porous ceramic and preparation method thereof
The invention discloses porous ceramic and a preparation method thereof, and belongs to the technical field of functional ceramic materials. According to the invention, a film with a breathable structure is used as an inner pad of upper and lower pressure heads of the porous ceramic forming die; the...
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| creator | SUN ZHENGBIN SONG YUNYUN CAO JIANFENG PEI YAXING ZHANG XIN LIU XUN |
| description | The invention discloses porous ceramic and a preparation method thereof, and belongs to the technical field of functional ceramic materials. According to the invention, a film with a breathable structure is used as an inner pad of upper and lower pressure heads of the porous ceramic forming die; the preparation method comprises the following steps: putting mixed and granulated powder into a mold cavity of a forming mold, uniformly spreading, jolt-ramming and strickling, clamping films on two sides of the granulated powder, pressing into a formed ceramic wet blank with a certain shape and thickness, then putting the formed ceramic wet blank on a breathable tray with the planeness lower than 0.1 mm, and performing microwave and hot air circulation drying and high-temperature sintering to obtain the ceramic. The large-size and thin-wall porous ceramic is prepared. By adopting the film prepared by the invention, the problems of mold sticking, microcracks and the like of a porous ceramic molded blank are effective |
| format | Patent |
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According to the invention, a film with a breathable structure is used as an inner pad of upper and lower pressure heads of the porous ceramic forming die; the preparation method comprises the following steps: putting mixed and granulated powder into a mold cavity of a forming mold, uniformly spreading, jolt-ramming and strickling, clamping films on two sides of the granulated powder, pressing into a formed ceramic wet blank with a certain shape and thickness, then putting the formed ceramic wet blank on a breathable tray with the planeness lower than 0.1 mm, and performing microwave and hot air circulation drying and high-temperature sintering to obtain the ceramic. The large-size and thin-wall porous ceramic is prepared. 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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE |
| title | Porous ceramic and preparation method thereof |
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