Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing Si3N4/BAS foamed ceramic material
The invention provides a method for preparing a Si3N4/BAS foamed ceramic material. The method is characterized in that a silicon sol is used as a liquid phase for preparing slurry; silicon nitride powder, barium oxide powder, aluminum oxide powder, and few dispersing agents and adhesives are added, and the quantity of added barium oxide and aluminum oxide references to the mass of silicon dioxide in the silicon sol; the materials are added in stoichiometric ratio of BaO-Al2O3-2SiO2 to prepare the slurry; the materials are mechanically agitated to be foamed, and then silicon sol is frozen at the low temperature for gelatinization so as to enable the ceramic foams to be quickly cured and formed, thus obtaining Si3N4/BAS foamed ceramic.
Method for preparing Si3N4/BAS foamed ceramic material
The invention provides a method for preparing a Si3N4/BAS foamed ceramic material. The method is characterized in that a silicon sol is used as a liquid phase for preparing slurry; silicon nitride powder, barium oxide powder, aluminum oxide powder, and few dispersing agents and adhesives are added, and the quantity of added barium oxide and aluminum oxide references to the mass of silicon dioxide in the silicon sol; the materials are added in stoichiometric ratio of BaO-Al2O3-2SiO2 to prepare the slurry; the materials are mechanically agitated to be foamed, and then silicon sol is frozen at the low temperature for gelatinization so as to enable the ceramic foams to be quickly cured and formed, thus obtaining Si3N4/BAS foamed ceramic.
Method for preparing Si3N4/BAS foamed ceramic material
YU JUANLI (Autor:in) / WANG TAO (Autor:in) / LYU YI (Autor:in) / ZHAO YINGMIN (Autor:in) / GUO SHIFENG (Autor:in) / PEI YUCHEN (Autor:in)
08.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2022
Method for preparing Si3N4/BAS composite ceramic material
| Europäisches Patentamt | 2015
Method for preparing foamed ceramic reinforced cement-based composite material
| Europäisches Patentamt | 2024