PREPARATION OF MONOLITHIC POROUS TITANIA SILICA CERAMICS

被引：12

作者：

HOSONO, H

SAKAI, Y

FASANO, M

ABE, Y

机构：

[1] Department of Materials Science and Engineering, Nagoya Institute of Technology, Nagoya, 466, Gokiso-cho, Showa-ku

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 08期

关键词：

monoliths; porous materials; silica; synthesis; titania;

D O I：

10.1111/j.1151-2916.1990.tb07630.x

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：

Monolithic porous ceramics composed of TiO2 (67 mol%) and SiO2 (33 mol%) were prepared via casting a melt in the Na2O‐CaO‐TiO2‐P2O5‐SiO2 system and subsequent acid leaching of the resultant ceramics which are constituted of NaCaPO4, TiO2, and amorphous SiO2. The median pore diameter and specific surface area of the resulting porous ceramics are approximately 1 μm and 40 m2, respectively. Amorphous silica surrounds the submicrometer‐sized particles of TiO2 acting as a binder and retaining monolithic forms. No significant shrinkage in the pore size occurred upon heating up to 1000°C. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：2536 / 2538

页数：3

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