Manufacture of biomorphic Al_2O_3 ceramics using filter paper as template  

作　　者：Chun-yan ZUO,Qing-shan LI,Gui-rong PENG,Guang-zhong XING State Key Laboratory for Metastable Materials and Technology,Yanshan University,Qinhuangdao 066004,China 

出　　处：《Progress in Natural Science:Materials International》2011年第6期455-459,共5页自然科学进展·国际材料（英文版）

基　　金：Project(2006BAD10B08) supported by the National"Eleventh Five-Year"Technology Program Foundation;Project(E2009000448) supported by the Natural Science Foundation of Hebei Province,China

摘　　要：Biomorphic Al_2O_3 ceramics were prepared through the surface sol-gel process with filter papers as bio-templates.The filter papers were infiltrated withγ-AlOOH sol and subsequently sintered in air at high temperatures to produce the biomorphic Al_2O_3 ceramics.The results show that the final materials have a hierarchical structure originated from the morphology of cellulose paper. The sintering temperatures exhibit a strong effect on the surface pore-size distribution of obtained Al_2O_3 ceramics.Differential scanning calorimeter,scanning electron microscopy,X-ray diffraction and BET analysis were employed to characterize the microstructure,morphology and phase compositions of the final products.Biomorphic Al_2O_3 ceramics were prepared through the surface sol-gel process with filter papers as bio-templates.The filter papers were infiltrated withγ-AlOOH sol and subsequently sintered in air at high temperatures to produce the biomorphic Al_2O_3 ceramics.The results show that the final materials have a hierarchical structure originated from the morphology of cellulose paper. The sintering temperatures exhibit a strong effect on the surface pore-size distribution of obtained Al_2O_3 ceramics.Differential scanning calorimeter,scanning electron microscopy,X-ray diffraction and BET analysis were employed to characterize the microstructure,morphology and phase compositions of the final products.

关 键 词：SOL-GEL process biomorphic FILTER PAPER CERAMICS 

分 类 号：TQ174.1[化学工程—陶瓷工业]