Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing porous ceramic through low-temperature hot pressing
The invention provides a method for preparing porous ceramic through low-temperature hot pressing, which comprises the following steps: carrying out particle size grading on ceramic materials such as alumina with micro-nano particle size, taking a small amount of water, an alkaline solution or an acidic solution as a temporary solvent, uniformly mixing and stirring, putting into a mold, and consolidating the materials through a dissolution-precipitation process at high pressure and lower temperature, so as to obtain the porous ceramic. High energy consumption and pollution caused by high-temperature sintering are avoided, the ceramic containing the porous structure is prepared under high-pressure and low-temperature conditions through different particle size grading, and the method has wide application value.
本发明提供一种低温热压制备多孔陶瓷的方法，本发明采用微纳米粒径的氧化铝等陶瓷材料进行粒径级配，少量水、碱性溶液或酸性溶液作为临时溶剂，混合搅拌均匀后置于模具中，在高压和较低温度下，通过溶解‑沉淀过程实现材料固结，得到多孔陶瓷结构，避免了高温烧结造成的高能耗和污染，通过不同大小的粒径级配，实现在高压低温条件制备含多孔结构的陶瓷，具有广阔的应用价值。
Method for preparing porous ceramic through low-temperature hot pressing
The invention provides a method for preparing porous ceramic through low-temperature hot pressing, which comprises the following steps: carrying out particle size grading on ceramic materials such as alumina with micro-nano particle size, taking a small amount of water, an alkaline solution or an acidic solution as a temporary solvent, uniformly mixing and stirring, putting into a mold, and consolidating the materials through a dissolution-precipitation process at high pressure and lower temperature, so as to obtain the porous ceramic. High energy consumption and pollution caused by high-temperature sintering are avoided, the ceramic containing the porous structure is prepared under high-pressure and low-temperature conditions through different particle size grading, and the method has wide application value.
本发明提供一种低温热压制备多孔陶瓷的方法，本发明采用微纳米粒径的氧化铝等陶瓷材料进行粒径级配，少量水、碱性溶液或酸性溶液作为临时溶剂，混合搅拌均匀后置于模具中，在高压和较低温度下，通过溶解‑沉淀过程实现材料固结，得到多孔陶瓷结构，避免了高温烧结造成的高能耗和污染，通过不同大小的粒径级配，实现在高压低温条件制备含多孔结构的陶瓷，具有广阔的应用价值。
Method for preparing porous ceramic through low-temperature hot pressing
一种低温热压制备多孔陶瓷的方法
ZHANG SHUQIANG (Autor:in) / HUANG WEIJUN (Autor:in) / LIU SONGPO (Autor:in)
08.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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