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Preparation method of silicon carbide topological skeleton structure reinforced aluminum oxide porous ceramic
The invention belongs to the technical field of porous materials, and provides a preparation method of a silicon carbide topological skeleton structure reinforced aluminum oxide porous ceramic. According to the preparation method, a relatively compact SiC-based topological network skeleton structure is prepared by adopting an impregnation method, and an Al2O3-based foaming slurry is prepared by adopting a foaming method; the Al2O3-based foaming slurry is injected into the SiC-based topological network skeleton structure by adopting a vibration pouring method, and gel forming is performed; andthe strength of the Al2O3-based porous ceramic material is enhanced by using the continuous skeleton structure of SiC. According to the invention, a SiC skeleton structure is introduced into an Al2O3-based porous material, so that the thermal shock resistance of the Al2O3 material can be improved by using high thermal conductivity and good thermal shock resistance of SiC.
本发明属于多孔材料技术领域，提出一种碳化硅拓补骨架结构增强氧化铝多孔陶瓷的制备方法。提出的碳化硅拓补骨架结构增强氧化铝多孔陶瓷的制备方法采用浸渍法制备相对致密的SiC基的拓补网络骨架结构，采用发泡法制备AlO基的发泡浆料；然后采用振动浇注的方法将AlO基发泡浆料注入SiC基的拓补网络骨架结构中，凝胶成型；利用SiC的连续骨架结构对AlO基多孔陶瓷材料的强度进行增强；本发明在AlO基多孔材料中引入SiC骨架结构，可借助SiC较高的热导率和良好的抗热震性改善Al2O3材料的热震性。
Preparation method of silicon carbide topological skeleton structure reinforced aluminum oxide porous ceramic
The invention belongs to the technical field of porous materials, and provides a preparation method of a silicon carbide topological skeleton structure reinforced aluminum oxide porous ceramic. According to the preparation method, a relatively compact SiC-based topological network skeleton structure is prepared by adopting an impregnation method, and an Al2O3-based foaming slurry is prepared by adopting a foaming method; the Al2O3-based foaming slurry is injected into the SiC-based topological network skeleton structure by adopting a vibration pouring method, and gel forming is performed; andthe strength of the Al2O3-based porous ceramic material is enhanced by using the continuous skeleton structure of SiC. According to the invention, a SiC skeleton structure is introduced into an Al2O3-based porous material, so that the thermal shock resistance of the Al2O3 material can be improved by using high thermal conductivity and good thermal shock resistance of SiC.
本发明属于多孔材料技术领域，提出一种碳化硅拓补骨架结构增强氧化铝多孔陶瓷的制备方法。提出的碳化硅拓补骨架结构增强氧化铝多孔陶瓷的制备方法采用浸渍法制备相对致密的SiC基的拓补网络骨架结构，采用发泡法制备AlO基的发泡浆料；然后采用振动浇注的方法将AlO基发泡浆料注入SiC基的拓补网络骨架结构中，凝胶成型；利用SiC的连续骨架结构对AlO基多孔陶瓷材料的强度进行增强；本发明在AlO基多孔材料中引入SiC骨架结构，可借助SiC较高的热导率和良好的抗热震性改善Al2O3材料的热震性。
Preparation method of silicon carbide topological skeleton structure reinforced aluminum oxide porous ceramic
碳化硅拓补骨架结构增强氧化铝多孔陶瓷的制备方法
DU PENGHUI (author) / WANG GANG (author) / HAN JIANSHENG (author) / LIANG PENGPENG (author) / LI HONGXIA (author) / YUAN BO (author) / ZHANG QI (author) / CHEN ZHENGLONG (author)
2020-04-21
Patent
Electronic Resource
Chinese
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