以冰为模板制备氧化铝多孔陶瓷及其结构特征  

Microstructure of Alumina Porous Ceramics Fabricated by An Ice Template Method

作　　者：艾桃桃[1] 

机构地区：[1]陕西理工学院材料科学与工程学院,陕西汉中723003

出　　处：《陶瓷学报》2011年第2期221-223,共3页Journal of Ceramics

基　　金：陕西省教育厅专项科研计划项目(编号:2010JK467);陕西高校省级重点实验室科研项目(编号:2010JS040)

摘　　要：以水玻璃溶液为粘结剂,以冰为造孔模板制备氧化铝多孔陶瓷。采用扫描电镜观测多孔陶瓷的显微结构。结果表明,冰是一种理想的造孔模板,浆体特性对多孔陶瓷结构影响较大,当浆体中相对固相含量增大,多孔陶瓷的孔隙会减小;当浆体粘度降低,易得到片层状与微孔复合结构的多孔陶瓷。Alumina porous ceramics were fabricated by an ice template method using sodium silicate solution as binder. The microstructure of the products was observed by scanning electron microscope （SEM）. The results show that ice is an ideal template for preparation of porous ceramics. The microstructure of the porous ceramics is directly influenced by the slurry characteristic. When the slurry concentration increases, the pore size becomes smaller gradually. When the viscosity of the slurry decreases, a layered microporous microstructure can be obtained.

关 键 词：冰模板 氧化铝 多孔陶瓷 

分 类 号：TQ174.75[化学工程—陶瓷工业]