Formation of porous alumina with oriented pores

被引:31
作者
Ding, XJ [1 ]
Zhang, JZ [1 ]
Wang, RD [1 ]
Feng, CD [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Ceram, Res & Dev Ctr Funct Ceram, Shanghai 200050, Peoples R China
关键词
Al; Al2O3; foams; porosity; sol-gel processes;
D O I
10.1016/S0955-2219(01)00318-1
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Adopting the theories describing the bubble forming in the metal-hydrogen solidification process, porous alumina with oriented pores was prepared by combining a foaming method with sol-gel technology. The bubble forming process in the sol-gel is different from that in the metal-hydrogen system. Samples were calcined at temperature from 800 to 1200C. The volume-shrinkage and compressive-strength increased with increasing calcination temperature. The porous alumina exhibited a bimodal pore structure when prepared below 1200degreesC. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:411 / 414
页数:4
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