无机材料学报2013，Vol.28Issue(6)：599-604,6.DOI:10.3724/SP.J.1077.2013.12441
多孔α-Al2O3基陶瓷片状载体的制备与性能
Preparation and Properties of Porous α-Al2O3 Based Ceramic Disk Substrates
摘要
Abstract
Porous α-Al2O3 based ceramics disks were prepared by dry pressure molding method.Influences of sintering temperature and SiO2 dopant on the structure,morphology and properties were investigated.It was founded that compressive strength and shrinkage ratio of αt-Al2O3 ceramic disk both increased with increasing sintering temperature.The shrinkage ratio and compressive strength was less than 0.5％ and stronger than 80 MPa,respectively,while the optimum sintering temperature was chosen to be 1180℃.The sintering of αt-Al2O3 ceramic disk would be enhanced by doping SiO2,which crystallized into cristobalite phase from an amorphous phase during the sintering process.α-Al2O3 ceramic disk doped with 12wt％ SiO2 sintered at 1180℃ exhibited a stronger compressive strength (110 MPa) and a shrinkage ratio of 1.2％.The ceramic disk possessed a smaller pore size but a wider pore size distribution than that of the pure α-Al2O3 ceramic disk.It was demonstrated that both α-Al2O3 and SiO2 doped α-Al2O3 ceramic disk substrates were favorable for the growth of ZSM-5 zeolite membranes.However,these ZSM-5 zeolite membranes showed different morphologies and crystal sizes,due to the difference in physicochemical properties of substrates.关键词
多孔氧化铝陶瓷/收缩率/抗压强度/分子筛膜Key words
porous Al2O3 ceramics/ shrinkage ratio/ compressive strength/ zeolite membrane分类
化学化工引用本文复制引用
陈圣博,刘旭光,张宝泉..多孔α-Al2O3基陶瓷片状载体的制备与性能[J].无机材料学报,2013,28(6):599-604,6.基金项目
国家自然科学基金(21136008)山东省泰山学者建设项目(ts20081119) （21136008）
National Natural Science Foundation of China (21136008) （21136008）
Taishan Scholars Project of Shandong Province (ts20081119) （ts20081119）
