Sol-Gel Kinetics for the Synthesis of Multi-Component Glass Materials

被引：9
|
作者：
Kline, A. A. [1 ,2 ]
Rogers, T. N. [1 ,2 ]
Mullins, M. E. [1 ,2 ]
Cornilsen, B. C. [1 ,2 ]
Sokolov, Lj. M. [1 ,2 ]
机构：
[1] Michigan Technol Univ, Dept Chem Engn, Houghton, MI 49931 USA
[2] Michigan Technol Univ, Dept Chem, Houghton, MI 49931 USA
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 1994年 / 2卷 / 1-3期
基金：
美国国家科学基金会;
关键词：
FTIR; kinetic model; hydrolysis rate constants;
D O I：
10.1007/BF00486254
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：
Attenuated Total Reflectance (ATR) FTIR has been used to follow sol-gel synthesis kinetics for tetraethylorthosilicate (TEOS), ethanol, and water solutions yielding pure silicate materials. Aluminosilicates have also been made using TEOS : ethanol : water solutions doped with AI(III). Effective rate constants have been fitted to a kinetic model suggested by the literature for pure silicate materials. This model has been extended to include the effect of AI(III) on the rate constants. The effects of solution pH, temperature, and varying TEOS/Ethanol mole ratios have been investigated. Reliable effective rate constants for metal doped sol-gel solutions will lead to better control of the morphological and chemical properties of multi-component glass materials.
引用
收藏
页码：269 / 272
页数：4
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